MESON Chess Problem Database

Problem Display
PID: 256448 (8/1R6/8/5K2/2N5/1Q6/1p2p2R/4k3 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Buletin Problemistic, 1985

8/1R6/8/5K2/2N5/1Q6/1p2p2R/4k3

#2

5 + 3

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...b1Q+
      • 2.Qxb1#
    • 1...b1S
      • 2.Qxb1#
    • 1...b1B+
      • 2.Qxb1#
    • 1...b1R
      • 2.Qxb1#
  • Tries
    • 1.Ke4?
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Kf4?
      • 1...b1Q
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1B
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Kg4?
      • 1...b1Q
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1B
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Ke5?
      • 1...b1Q
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1B
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Kg5?
      • 1...b1Q
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1B
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Ke6?
      • 1...b1Q
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1B
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Kf6?
      • 1...b1Q
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1B
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Kg6?
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Rxe2+?
      • 1...Kf1
        • 2.Qd1#
      • 1...Kxe2!
    • 1.Rg2?
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Rb4?
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Rb5?
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Rb6?
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Ra7?
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Rc7?
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Rd7?
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Re7?
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Rf7?
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Rg7?
      • threat
        • 2.Rg1#
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Rbh7?
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Rb8?
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kf1!
    • 1.Qa2?
      • threat
        • 2.Qb1#
      • 1...b1Q+
        • 2.Rxb1#
        • 2.Qxb1#
      • 1...b1B+
        • 2.Rxb1#
        • 2.Qxb1#
      • 1...Kd1
        • 2.Qb1#
      • 1...b1S
        • 2.Rxb1#
        • 2.Qxb1#
        • 2.Qxe2#
      • 1...b1R
        • 2.Rxb1#
        • 2.Qxb1#
        • 2.Qxe2#
      • 1...Kf1!
    • 1.Qc2?
      • threat
        • 2.Qb1#
        • 2.Qxe2#
      • 1...b1Q
        • 2.Rxb1#
        • 2.Qxb1#
      • 1...b1S
        • 2.Rxb1#
        • 2.Qxb1#
        • 2.Qc1#
        • 2.Qxe2#
      • 1...b1B
        • 2.Rxb1#
        • 2.Qxb1#
      • 1...b1R
        • 2.Rxb1#
        • 2.Qxb1#
        • 2.Qxe2#
      • 1...Kf1!
    • 1.Qa4?
      • 1...b1Q+
        • 2.Rxb1#
      • 1...b1B+
        • 2.Rxb1#
      • 1...b1S
        • 2.Rxb1#
      • 1...b1R
        • 2.Rxb1#
      • 1...Kf1!
    • 1.Qxb2?
      • threat
        • 2.Qa1#
        • 2.Qc1#
        • 2.Qb1#
        • 2.Qxe2#
      • 1...Kd1
        • 2.Qb1#
        • 2.Qd2#
      • 1...Kf1!
    • 1.Qc3+?
      • 1...Kd1
        • 2.Sxb2#
        • 2.Se3#
        • 2.Rd7#
        • 2.Qd2#
      • 1...Kf1!
    • 1.Qd3?
      • threat
        • 2.Qb1#
        • 2.Qxe2#
      • 1...b1Q
        • 2.Rxb1#
        • 2.Qxb1#
      • 1...b1S
        • 2.Rxb1#
        • 2.Qxb1#
        • 2.Qxe2#
      • 1...b1B
        • 2.Rxb1#
        • 2.Qxb1#
      • 1...b1R
        • 2.Rxb1#
        • 2.Qxb1#
        • 2.Qxe2#
      • 1...Kf1!
    • 1.Qf3?
      • threat
        • 2.Rh1#
        • 2.Qh1#
        • 2.Qxe2#
      • 1...b1Q+
        • 2.Rxb1#
      • 1...b1B+
        • 2.Rxb1#
      • 1...Kd1!
    • 1.Qg3+?
      • 1...Kf1
        • 2.Sd2#
        • 2.Se3#
        • 2.Rh1#
        • 2.Qf2#
      • 1...Kd1!
    • 1.Qh3?
      • 1...b1Q+
        • 2.Rxb1#
      • 1...b1B+
        • 2.Rxb1#
      • 1...b1S
        • 2.Rxb1#
      • 1...b1R
        • 2.Rxb1#
      • 1...Kd1!
    • 1.Qb4+?
      • 1...Kd1
        • 2.Qd2#
      • 1...Kf1!
    • 1.Qb6?
      • threat
        • 2.Rh1#
        • 2.Qg1#
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...Kf1
        • 2.Qf2#
      • 1...Kd1!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Rh1#
        • 2.Qg1#
        • 2.Qxe2#
      • 1...b1Q+
        • 2.Rxb1#
      • 1...b1B+
        • 2.Rxb1#
      • 1...Kd1
        • 2.Qd2#
      • 1...Kf1
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • P(b);CHECK,OGATE::QAR(B),XQ(b)
    • P(b);OGATE::QAR(B),XS(b)
    • P(b);CHECK,OGATE::QAR(B),XB(b)
    • P(b);OGATE::QAR(B),XR(b)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • P(b);OGATE::QAR(B),XQ(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(D);S_FLIGHT
      • Vars
        • P(b);OGATE::QAR(B),XQ(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • P(b);OGATE::QAR(B),XQ(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • P(b);OGATE::QAR(B),XQ(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(D);S_FLIGHT
      • Vars
        • P(b);OGATE::QAR(B),XQ(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • P(b);OGATE::QAR(B),XQ(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(D);S_FLIGHT
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(A);CHECK,XP(c)
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT,XR(A)
    • Try
      • R(A);
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);P_PINP(c)
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);N_SPINP(c),P-FLIGHT
    • Try
      • R(E);
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
        • P(b);OGATE::QAR(B),XS(b)
        • P(b);OGATE::QAR(B),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR(B)
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • P(b);CHECK,OGATE::R(E),XQ(b)
        • P(b);CHECK,OGATE::R(E),XB(b)
        • P(b);OGATE::R(E),XS(b)
        • P(b);OGATE::R(E),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);XP(b)
      • Threat
        • DUALS(4)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(c)
    • Try
      • Q(B);
      • Threat
        • DUALS(3)
      • Vars
        • P(b);CHECK,OGATE::R(E),XQ(b)
        • P(b);CHECK,OGATE::R(E),XB(b)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(c)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • P(b);CHECK,OGATE::R(E),XQ(b)
        • P(b);CHECK,OGATE::R(E),XB(b)
        • P(b);OGATE::R(E),XS(b)
        • P(b);OGATE::R(E),XR(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);CHECK,OGATE::QAR(B),XQ(b)
        • P(b);CHECK,OGATE::QAR(B),XB(b)
        • K(a);N_GUARD,P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(B);P_PINP(c)
    • Threat
      • DUALS(3)
    • Vars
      • P(b);CHECK,OGATE::R(E),XQ(b)
      • P(b);CHECK,OGATE::R(E),XB(b)
      • K(a);N_GUARD,N_SPINP(c),P-FLIGHT::QAR1(B)
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