MESON Chess Problem Database

Problem Display
PID: 76577 (2K5/1QN1N3/p3p3/3RP1p1/Rnb1kb2/1r4n1/2qrpPP1/BB6 w - - 0 1)

Gamage, Frederick

Frederick Gamage (Prcic), 2004

2K5/1QN1N3/p3p3/3RP1p1/Rnb1kb2/1r4n1/2qrpPP1/BB6

#2

11 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Rc5#
    • 1...Bxe5
      • 2.Rd4#
    • 1...Sd3
      • 2.Rb5#
  • Tries
    • 1.Rxd2+?
      • 1...Sd5
        • 2.Rxc4#
      • 1...Sc6
        • 2.Rxc4#
        • 2.Qxc6#
      • 1...Bd5!
  • Keys
    • 1.Sxe6!
      • threat
        • 2.Sc5#
      • 1...Bd3+
        • 2.Rc5#
      • 1...Bxe5
        • 2.Rd4#
      • 1...Be3
        • 2.f3#
      • 1...Sd3
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(g);N_GUARD,N_SPINQ(a),P_PINS(I),P_SPINS(f),SBLOCK,S_CUTR(b)::QAB(H)+R(F)
    • B(i);SBLOCK,XP(G)::QAB(H)+R(F),DCHECK
    • S(f);N_GUARD,N_SPINQ(a),P_SPINB(g),SBLOCK,S_CUTR(b)::QAB(H)+R(F)
  • Tries
    • Try
      • R(F);CHECK,XR(b)
      • Vars
        • S(f);OGATE,P_SPINB(g),P_SPINS(f)::R(E),XB(g)
      • Refutation
        • B(g);P_PINS(I),P_SPINB(g),P_SPINS(f)
  • Actual
    • S(I);XP(l)
    • Threat
      • S(I)
    • Vars
      • B(g);CHECK,N_GUARD,N_SPINQ(a),P_SPINS(f),SBLOCK,S_CUTR(b)::QAB(H)+R(F)
      • B(i);SBLOCK,XP(G)::QAB(H)+R(F),DCHECK
      • B(i);SBLOCK,S_CUTR(d)::P(C)
      • S(f);N_GUARD,N_SPINQ(a),P_SPINB(g),SBLOCK,S_CUTR(b)::QAB(H)+R(F)
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