MESON Chess Problem Database

Problem Display
PID: 108593 (1bN2Nb1/2P2p2/2n2kpB/R7/3P4/3B1n2/1R6/Q6K w - - 0 1)

Kapustin, Fedor Mikhailovich

Hlas l'udu, 1992

1bN2Nb1/2P2p2/2n2kpB/R7/3P4/3B1n2/1R6/Q6K

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sfxd4
      • 2.Rf2#
    • 1...Scxd4
      • 2.Rb6#
    • 1...Sd8
      • 2.cxd8Q#
      • 2.cxd8B#
    • 1...g5
      • 2.Rf5#
  • Tries
    • 1.Rf2?
      • threat
        • 2.Rxf3#
      • 1...Se5
        • 2.dxe5#
      • 1...Se7
        • 2.d5#
      • 1...Bxc7!
    • 1.Rb6?
      • threat
        • 2.Rxc6#
      • 1...Se5
        • 2.dxe5#
      • 1...Sg5
        • 2.d5#
      • 1...Bxc7!
    • 1.cxb8Q?
      • threat
        • 2.Qf4#
        • 2.Qd6#
      • 1...Sfxd4
        • 2.Rf2#
      • 1...Scxd4
        • 2.Rb6#
      • 1...Sfe5
        • 2.Qd6#
      • 1...Sh4
        • 2.Qd6#
      • 1...Sg5
        • 2.Qf4#
      • 1...Sce5
        • 2.Qd6#
      • 1...Se7
        • 2.Qd6#
      • 1...Sd8
        • 2.Qf4#
      • 1...g5
        • 2.Rf5#
        • 2.Qd6#
      • 1...Sxb8!
  • Keys
    • 1.d5!
      • threat
        • 2.Sd7#
      • 1...Ke5
        • 2.Re2#
      • 1...Sfe5
        • 2.Rf2#
      • 1...Sce5
        • 2.Rb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • S(a);OGATEB,XP(E)::R(C)
    • S(b);OGATEB,XP(E)::R(C)
    • S(b);OGATE::PXS(b)=Q
    • P(d);N_GUARD::R1(F)
  • Tries
    • Try
      • R(C);P_PINS(a)
      • Threat
        • R(C),XS(a)
      • Vars
        • S(b);OGATE::P(E),XS(b)
        • S(b);N_GUARD::QAB(A)+P(E)
      • Refutation
        • B(f);XP(H)
    • Try
      • R(C);P_PINS(b)
      • Threat
        • R(C),XS(b)
      • Vars
        • S(a);OGATE::P(E),XS(a)
        • S(a);N_GUARD::QAB(A)+P(E)
      • Refutation
        • B(f);XP(H)
    • Try
      • P(H);XB(f)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);OGATEB,XP(E)::R(C)
        • S(b);OGATEB,XP(E)::R(C)
        • S(a);::QAR2(H)
        • S(b);::QAR2(H)
      • Refutation
        • S(b);XQ(H)
  • Actual
    • P(E);
    • Threat
      • S(J)
    • Vars
      • K(c);S_FLIGHT::QAB(A)+R(C),DCHECK
      • S(a);S_CUTS(b),S_CUTS(b)::R(C)
      • S(b);S_CUTS(a),S_CUTS(a)::R(C)
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