MESON Chess Problem Database

Problem Display
PID: 133163 (5Q2/6pk/2P5/8/2RP4/2NKB3/3NR1P1/1B6 w - - 0 1)

Kruk, Henryk

Sp. Prize, Boyer MT, 1988

5Q2/6pk/2P5/8/2RP4/2NKB3/3NR1P1/1B6

#2

11 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Ke4?
      • 1...Kg6
        • 2.Qf5#
      • 1...g5
        • 2.Kf3#
        • 2.Kd5#
        • 2.Ke5#
      • 1...g6!
    • 1.Sf3?
      • 1...g6
        • 2.Sg5#
      • 1...g5
        • 2.Kd2#
      • 1...Kg6!
    • 1.Sd5?
      • 1...g6
        • 2.Sf6#
      • 1...g5
        • 2.Kc3#
      • 1...Kg6!
    • 1.Bf4?
      • 1...g6
        • 2.Re7#
      • 1...g5
        • 2.Ke3#
      • 1...Kg6!
    • 1.Bg5?
      • 1...g6
        • 2.Re7#
      • 1...Kg6!
    • 1.Re1?
      • 1...g6
        • 2.Rh1#
      • 1...g5
        • 2.Ke2#
      • 1...Kg6!
    • 1.Ra4?
      • 1...g6
        • 2.Ra7#
      • 1...g5
        • 2.Kc4#
      • 1...Kg6!
    • 1.Rb4?
      • 1...g6
        • 2.Rb7#
      • 1...g5
        • 2.Kc4#
      • 1...Kg6!
    • 1.Rc5?
      • 1...Kg6
        • 2.Kc4#
        • 2.Qf5#
      • 1...g5
        • 2.Kc4#
      • 1...g6!
    • 1.g4?
      • 1...Kg6
        • 2.Qf5#
      • 1...g6
        • 2.Rh2#
      • 1...g5!
    • 1.d5?
      • 1...g6
        • 2.Rh4#
      • 1...g5
        • 2.Kd4#
      • 1...Kg6!
  • Keys
    • 1.Rf2!
      • 1...Kg6
        • 2.Qf5#
      • 1...g6
        • 2.Rf7#
      • 1...g5
        • 2.Ke2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(K)
      • Refutation
        • P(a);
    • Try
      • S(B);
      • Vars
        • P(a);SBLOCK::S(B)
        • P(a);N_GUARD::B(A)+K(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • P(a);N_GUARD,SBLOCK::S(E)
        • P(a);N_GUARD::B(A)+K(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(G);
      • Vars
        • P(a);OGATEB,SBLOCK::R(C)
        • P(a);N_GUARD::B(A)+K(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(G);
      • Vars
        • P(a);OGATEB,SBLOCK::R(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • P(a);SBLOCK::R(C)
        • P(a);N_GUARD::B(A)+K(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(H);
      • Vars
        • P(a);OGATEB,SBLOCK::R(H)
        • P(a);N_GUARD::B(A)+K(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(H);
      • Vars
        • P(a);OGATEB,SBLOCK::R(H)
        • P(a);N_GUARD::B(A)+K(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(H);
      • Vars
        • P(a);N_GUARD::B(A)+K(F)
      • Refutation
        • P(a);
    • Try
      • P(D);
      • Vars
        • K(b);S_FLIGHT::QAB1(K)
        • P(a);SBLOCK::R(C)
      • Refutation
        • P(a);
    • Try
      • P(I);
      • Vars
        • P(a);SBLOCK::R(H)
        • P(a);N_GUARD::B(A)+K(F)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(C);
    • Vars
      • K(b);S_FLIGHT::QAB1(K)
      • P(a);OGATEB,SBLOCK::R(C)
      • P(a);N_GUARD::B(A)+K(F)
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