MESON Chess Problem Database

Problem Display
PID: 69729 (8/Bn5Q/2p3K1/2rPp3/4kP2/1P6/2PPPbb1/1B3R2 w - - 0 1)

Amirov, Talip Khasanovich

Shakhmaty, 1962

8/Bn5Q/2p3K1/2rPp3/4kP2/1P6/2PPPbb1/1B3R2

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf4
      • 2.Qh4#
    • 1...Rxd5
      • 2.Kg5#
    • 1...Bd4
      • 2.c4#
  • Tries
    • 1.Kg5+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Kxd5!
    • 1.Kf6+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Kxf4
        • 2.Qh4#
      • 1...Kxd5!
    • 1.Qe7?
      • threat
        • 2.Qxe5#
      • 1...Kd4
        • 2.Qxe5#
      • 1...Kxf4
        • 2.Qh4#
      • 1...Kxd5
        • 2.Qxe5#
      • 1...Bd4
        • 2.c4#
      • 1...Rxd5!
    • 1.Qh8?
      • threat
        • 2.Qxe5#
      • 1...Kd4
        • 2.Qxe5#
      • 1...Kxf4
        • 2.Qh4#
      • 1...Kxd5
        • 2.Qxe5#
      • 1...exf4
        • 2.c4#
      • 1...Bd4
        • 2.c4#
      • 1...Rxd5!
    • 1.c3+?
      • 1...Kxf4
        • 2.Qh4#
      • 1...Kxd5!
    • 1.c4+?
      • 1...Kxf4
        • 2.Qh4#
      • 1...Kd4!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qxe5#
      • 1...Kd4
        • 2.Qxe5#
      • 1...Kxf4
        • 2.Qh4#
      • 1...Kxd5
        • 2.Qxe5#
      • 1...Rxd5
        • 2.Qf5#
      • 1...exf4
        • 2.c3#
      • 1...Bd4
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);OGATEB,P-FLIGHT,P_SPINB(a),XP(G)::QAR2(K)
    • R(d);SBLOCK,XP(H)::QAB(K)+K(I)
    • B(a);SBLOCK::B(A)+P(C)
  • Tries
    • Try
      • K(I);CHECK,P-FLIGHT
      • Vars
        • K(c);OGATE,P-FLIGHT,P_SPINR(d)::QAR1(K)
      • Refutation
        • K(c);S_FLIGHT,XP(H)
    • Try
      • K(I);CHECK,P-FLIGHT
      • Vars
        • K(c);OGATE,P-FLIGHT,P_SPINR(d)::QAR1(K)
        • K(c);OGATEB,P-FLIGHT,P_SPINB(a),XP(G)::QAR2(K)
      • Refutation
        • K(c);S_FLIGHT,XP(H)
    • Try
      • Q(K);P_PINP(e)
      • Threat
        • QAR1(K),XP(e)
      • Vars
        • K(c);N_SPINP(e),P-FLIGHT,P_SPINR(d)::QAB1(K),XP(e)
        • K(c);N_SPINP(e),OGATEB,P-FLIGHT,P_SPINB(a),XP(G)::QAR2(K)
        • K(c);N_SPINP(e),S_FLIGHT,XP(H)::QAR1(K),XP(e)
        • B(a);SBLOCK::B(A)+P(C)
      • Refutation
        • R(d);XP(H)
    • Try
      • Q(K);
      • Threat
        • QAR1(K),XP(e)
      • Vars
        • K(c);P-FLIGHT,P_SPINP(e),P_SPINR(d)::QAB1(K),XP(e)
        • K(c);OGATEB,P-FLIGHT,P_SPINB(a),XP(G)::QAR2(K)
        • K(c);S_FLIGHT,XP(H)::QAR1(K),XP(e)
        • P(e);SBLOCK,XP(G)::B(A)+P(C)
        • B(a);SBLOCK::B(A)+P(C)
      • Refutation
        • R(d);XP(H)
    • Try
      • P(C);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINB(a),XP(G)::QAR2(K)
      • Refutation
        • K(c);S_FLIGHT,XP(H)
    • Try
      • P(C);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINB(a),XP(G)::QAR2(K)
      • Refutation
        • K(c);P-FLIGHT,P_SPINR(d)
  • Actual
    • Q(K);
    • Threat
      • QAR1(K),XP(e)
    • Vars
      • K(c);P-FLIGHT,P_SPINR(d)::QAB1(K),XP(e)
      • K(c);OGATEB,P-FLIGHT,P_SPINB(a),XP(G)::QAR2(K)
      • K(c);P_SPINP(e),S_FLIGHT,XP(H)::QAR1(K),XP(e)
      • R(d);SBLOCK,XP(H)::QAB1(K)
      • P(e);SBLOCK,XP(G)::B(A)+P(C)
      • B(a);SBLOCK::B(A)+P(C)
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