MESON Chess Problem Database

Problem Display
PID: 243262 (8/b7/3B4/8/2QPk1B1/8/2K5/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

ChessStar, 2017

8/b7/3B4/8/2QPk1B1/8/2K5/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Kd2?
      • 1...Bxd4
        • 2.Qc6#
      • 1...Bc5
        • 2.dxc5#
      • 1...Bb8
        • 2.d5#
      • 1...Bb6!
    • 1.Qe2+?
      • 1...Kxd4
        • 2.Qd3#
      • 1...Kd5!
    • 1.d5+?
      • 1...Ke3
        • 2.Qf4#
      • 1...Bd4!
  • Keys
    • 1.Kc3!
      • threat
        • 2.Qe6#
      • 1...Bxd4+
        • 2.Qxd4#
      • 1...Ke3
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • B(b);P_SPINB(b),SBLOCK,XP(C)::QAB(B)
        • B(b);OGATE::QAR(B)+P(C),XB(b)
        • B(b);N_GUARD::QAR(B)+P(C)
      • Refutation
        • B(b);
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(C)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(C);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(B)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • K(A);P-FLIGHT
    • Threat
      • QAR2(B)
    • Vars
      • B(b);CHECK,OGATE,P_SPINB(b),XP(C)::QAR1(B),XB(b)
      • K(a);P-FLIGHT::QAR1(B)
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