MESON Chess Problem Database

Problem Display
PID: 237393 (6B1/P5K1/3pP1R1/2pRp3/2p1kP2/2P5/5PnN/7B w - - 0 1)

Labai, Zoltan

1/2 HM., Pravda (Bratislava), 2006

6B1/P5K1/3pP1R1/2pRp3/2p1kP2/2P5/5PnN/7B

#2

11 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.a8Q#
      • 2.a8B#
  • Tries
    • 1.Kf6?
      • 1...Kxf4
        • 2.Rg4#
      • 1...Kxd5
        • 2.a8Q#
        • 2.a8B#
      • 1...exf4!
    • 1.Bxg2+?
      • 1...Kf5
        • 2.Rf6#
      • 1...Kxf4!
    • 1.Rg4?
      • 1...Kxd5
        • 2.a8Q#
        • 2.a8B#
      • 1...exf4
        • 2.Bxg2#
      • 1...Kf5!
    • 1.Rg5?
      • 1...Kxd5
        • 2.Bxg2#
        • 2.a8Q#
        • 2.a8B#
      • 1...exf4
        • 2.Bh7#
      • 1...Kxf4!
    • 1.Rf6?
      • threat
        • 2.Bxg2#
      • 1...Kxd5
        • 2.a8Q#
        • 2.a8B#
      • 1...exf4!
  • Keys
    • 1.Bh7!
      • 1...Kxf4
        • 2.Rg4#
      • 1...Kxd5
        • 2.a8Q#
        • 2.a8B#
      • 1...Kf5
        • 2.Rf6#
      • 1...exf4
        • 2.Rgg5#

One of the white bishops is obtrusive.

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT,XR(F)::P=Q
  • Tries
    • Try
      • K(J);S_FLIGHT
      • Vars
        • K(c);N_SPINS(a),OGATEB,P-FLIGHT,XP(E)::R1(H)
        • K(c);S_FLIGHT,XR(F)::P=Q
      • Refutation
        • P(e);XP(E)
    • Try
      • B(A);CHECK,XS(a)
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT::R1(H)
      • Refutation
        • K(c);P-FLIGHT,XP(E)
    • Try
      • R(H);
      • Vars
        • K(c);S_FLIGHT,XR(F)::P=Q
        • P(e);P_SPINP(e),XP(E)::B(A),XS(a)
      • Refutation
        • K(c);N_SPINS(a),P_SPINP(e),S_FLIGHT
    • Try
      • R(H);
      • Vars
        • P(e);SBLOCK,XP(E)::B(K)
      • Refutation
        • K(c);N_SPINS(a),P-FLIGHT,XP(E)
    • Try
      • R(H);
      • Threat
        • B(A),XS(a)
      • Vars
        • K(c);S_FLIGHT,XR(F)::P=Q
      • Refutation
        • P(e);XP(E)
  • Actual
    • B(K);
    • Vars
      • K(c);N_SPINS(a),P-FLIGHT,XP(E)::R1(H)
      • K(c);S_FLIGHT,XR(F)::P=Q
      • K(c);N_SPINS(a),P_SPINP(e),S_FLIGHT::B(K)+R(H),DCHECK
      • P(e);SBLOCK,XP(E)::B(K)+R(H)
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