MESON Chess Problem Database

Problem Display
PID: 266708 (8/5R2/4P2K/4k2N/1B6/8/6Q1/8 w - - 0 1)

Shmatov, Vladimir Afanasievich

Zadachi i Etyudi, 2011

8/5R2/4P2K/4k2N/1B6/8/6Q1/8

#2

6 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Kg5?
      • 1...Kxe6
        • 2.Re7#
      • 1...Kd4!
    • 1.Kg6?
      • 1...Kxe6
        • 2.Re7#
        • 2.Qe4#
      • 1...Kd4!
    • 1.Kg7?
      • 1...Kxe6
        • 2.Qe4#
      • 1...Kd4!
    • 1.Sg3?
      • threat
        • 2.Qe4#
      • 1...Kd4
        • 2.Qe4#
      • 1...Kxe6!
    • 1.Rd7?
      • threat
        • 2.Qd5#
      • 1...Kxe6
        • 2.Qd5#
      • 1...Kf5!
    • 1.Rg7?
      • 1...Kf5
        • 2.Qd5#
      • 1...Kxe6
        • 2.Qe4#
      • 1...Kd4!
    • 1.Qf3?
      • 1...Kxe6
        • 2.Re7#
        • 2.Qf5#
      • 1...Kd4!
    • 1.Qe2+?
      • 1...Kd4
        • 2.Rd7#
      • 1...Kd5!
    • 1.e7?
      • 1...Ke6
        • 2.e8Q#
      • 1...Kd4!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Qe4#
      • 1...Kd4
        • 2.Qe4#
      • 1...Kf4
        • 2.Sg4#
      • 1...Kf5
        • 2.Qe4#
      • 1...Kxe6
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(D)::R1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(E);P-FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(a);N_GUARD,P-FLIGHT,XP(D)::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • R(F);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);P-FLIGHT,XP(D)::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(F);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAR2(A)
        • K(a);N_GUARD,P-FLIGHT,XP(D)::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::R(F)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(D);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::P=Q
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(C);
    • Threat
      • QAR1(A)
    • Vars
      • K(a);S_FLIGHT::QAR1(A)
      • K(a);N_GUARD,S_FLIGHT::R(F)+S(C)
      • K(a);P-FLIGHT::QAB1(A)
      • K(a);N_GUARD,P-FLIGHT,XP(D)::QAB1(A)
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