MESON Chess Problem Database

Problem Display
PID: 74502 (1K6/5B1r/2b1RB2/1ppk1P2/5rp1/2pN1p2/1qQN2nb/3R4 w - - 0 1)

Gamage, Frederick

1st Prize, Christian Science Monitor, 1943

1K6/5B1r/2b1RB2/1ppk1P2/5rp1/2pN1p2/1qQN2nb/3R4

#2

9 + 12

5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...cxd2
      • 2.Qxc5#
  • Tries
    • 1.Kc7?
      • threat
        • 2.Rd6#
      • 1...cxd2
        • 2.Qxc5#
      • 1...Rxf7+!
    • 1.Sxf4+?
      • 1...Sxf4
        • 2.Qe4#
      • 1...Bxf4+!
    • 1.Be5?
      • threat
        • 2.Rd6#
      • 1...Rh8+
        • 2.Re8#
      • 1...cxd2!
    • 1.Re5+?
      • 1...Kd4
        • 2.Ree1#
        • 2.Re2#
        • 2.Re4#
        • 2.Re7#
        • 2.Re8#
      • 1...Kd6!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sb6#
      • 1...Rxc4+
        • 2.Sf4#
      • 1...Rd4+
        • 2.Re5#
      • 1...Re4+
        • 2.Rd6#
      • 1...Rxf5+
        • 2.Sde5#
      • 1...Rh8+
        • 2.Re8#
      • 1...bxc4+
        • 2.Sb4#
      • 1...Kxc4
        • 2.Re4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • P(d);OGATE,XS(C)::QAR1(B),XP(i)
  • Tries
    • Try
      • K(I);P_SPINB(H),S_FLIGHT
      • Threat
        • B(H)+R(F),DCHECK
      • Vars
        • P(d);XS(C)::QAR1(B),XP(i)
      • Refutation
        • R(l);CHECK,XB(H)
    • Try
      • S(D);CHECK,P_SPINS(D),XR(f)
      • Vars
        • S(b);XS(D)::QAB1(B)
      • Refutation
        • B(c);CHECK,XS(D)
    • Try
      • B(G);
      • Threat
        • B(H)+R(F),DCHECK
      • Vars
        • R(l);CHECK,N_GUARD::B(H)+R(F)
      • Refutation
        • P(d);XS(C)
    • Try
      • R(F);CHECK
      • Refutation
        • K(j);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • R(f);CHECK,SBLOCK,XS(C)::R(A)+S(D),DCHECK
      • R(f);CHECK,SBLOCK::B(H)+R(F),DCHECK
      • R(f);CHECK,N_GUARD,XP(E)::R(A)+S(D)
      • R(l);CHECK,N_GUARD::B(H)+R(F)
      • P(h);CHECK,SBLOCK,XS(C)::R(A)+S(D),DCHECK
      • K(j);P_SPINP(d),S_FLIGHT,XS(C)::B(H)+R(F),DCHECK
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