MESON Chess Problem Database

Problem Display
PID: 137995 (1b2n1r1/3bPpnq/2pr1P1p/3p1k1p/3BR2P/3QPBpK/5R2/8 w - - 0 1)

ten Cate, Pieter

Comm., BCF 113. Ty., 1966-1967

1b2n1r1/3bPpnq/2pr1P1p/3p1k1p/3BR2P/3QPBpK/5R2/8

#2

10 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Kg6+
      • 2.Rg4#
    • 1...Qg6
      • 2.Bg4#
    • 1...Re6
      • 2.Rf4#
    • 1...Rxf6
      • 2.Re5#
    • 1...Be6
      • 2.Rf4#
      • 2.Rg4#
    • 1...Se6
      • 2.Rf4#
      • 2.Rg4#
    • 1...Sxf6
      • 2.Re5#
    • 1...g2
      • 2.Bxh5#
    • 1...dxe4
      • 2.Qxe4#
  • Tries
    • 1.Bd1+?
      • 1...Kg6+
        • 2.Rg4#
      • 1...gxf2!
    • 1.Bh1+?
      • 1...Kg6+
        • 2.Rg4#
      • 1...gxf2!
    • 1.Be2+?
      • 1...Kg6+
        • 2.Rg4#
      • 1...gxf2!
    • 1.Bg2+?
      • 1...Kg6+
        • 2.Rg4#
      • 1...gxf2!
    • 1.Rf1?
      • threat
        • 2.Bxh5#
      • 1...Kg6+
        • 2.Rg4#
      • 1...Rxf6
        • 2.Re5#
      • 1...dxe4
        • 2.Qxe4#
      • 1...Re6
        • 2.Rf4#
      • 1...Se6
        • 2.Rf4#
        • 2.Rg4#
      • 1...g2!
  • Keys
    • 1.Kxg3!
      • threat
        • 2.Bxh5#
      • 1...Qg6+
        • 2.Bg4#
      • 1...Re6+
        • 2.Rf4#
      • 1...Rxf6+
        • 2.Re5#
      • 1...Se6+
        • 2.Rg4#
      • 1...Kg6
        • 2.Rg4#
      • 1...dxe4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(c);CHECK,S_FLIGHT::QAB(B)+R(G),DCHECK
    • Q(k);SBLOCK::R(A)+B(D),DCHECK
    • R(f);SBLOCK::QAB(B)+R(G),DCHECK
    • R(f);SBLOCK,XP(I)::QAB(B)+R(G),DCHECK
    • S(m);SBLOCK,XP(I)::QAB(B)+R(G),DCHECK
    • P(a);N_GUARD::R(A)+B(D),XP(d)
    • P(b);OGATE,P_SPINP(b),XR(G)::QAB1(B),XP(b)
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • K(c);CHECK,S_FLIGHT::QAB(B)+R(G),DCHECK
      • Refutation
        • P(a);XR(A)
    • Try
      • B(D);CHECK
      • Vars
        • K(c);CHECK,S_FLIGHT::QAB(B)+R(G),DCHECK
      • Refutation
        • P(a);XR(A)
    • Try
      • B(D);CHECK
      • Vars
        • K(c);CHECK,S_FLIGHT::QAB(B)+R(G),DCHECK
      • Refutation
        • P(a);XR(A)
    • Try
      • B(D);CHECK
      • Vars
        • K(c);CHECK,S_FLIGHT::QAB(B)+R(G),DCHECK
      • Refutation
        • P(a);XR(A)
    • Try
      • R(A);
      • Threat
        • R(A)+B(D),XP(d)
      • Vars
        • K(c);CHECK,S_FLIGHT::QAB(B)+R(G),DCHECK
        • R(f);SBLOCK,XP(I)::QAB(B)+R(G),DCHECK
        • P(b);OGATE,P_SPINP(b),XR(G)::QAB1(B),XP(b)
        • R(f);SBLOCK::QAB(B)+R(G),DCHECK
      • Refutation
        • P(a);
  • Actual
    • K(E);P-FLIGHT,XP(a)
    • Threat
      • R(A)+B(D),XP(d)
    • Vars
      • Q(k);CHECK,SBLOCK::R(A)+B(D),DCHECK
      • R(f);CHECK,SBLOCK::QAB(B)+R(G),DCHECK
      • R(f);CHECK,SBLOCK,XP(I)::QAB(B)+R(G),DCHECK
      • S(j);CHECK,SBLOCK::QAB(B)+R(G)
      • K(c);S_FLIGHT::QAB(B)+R(G),DCHECK
      • P(b);OGATE,P_SPINP(b),XR(G)::QAB1(B),XP(b)
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Developed and maintained by Brian Stephenson.
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