MESON Chess Problem Database

Problem Display
PID: 141413 (1B2NR2/3ppBn1/4b1Pb/3p1k1p/3P1P1P/7K/2n2NQ1/5R2 w - - 0 1)

Markwick, Frederick W

SCPF Fraternity Saturday, 1882

1B2NR2/3ppBn1/4b1Pb/3p1k1p/3P1P1P/7K/2n2NQ1/5R2

#2

12 + 9

14867 BCPS Library 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Bg5
      • 2.Qxg5#
  • Tries
    • 1.Sxg7+?
      • 1...Bxg7
        • 2.Qg5#
      • 1...Kf6+!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Bxe6#
      • 1...Kxf4+
        • 2.Sg4#
      • 1...Kf6+
        • 2.Bxe6#
      • 1...Bxf7
        • 2.Rxf7#
      • 1...Bg5
        • 2.Qxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(f);N_GUARD::QAR1(C),XB(f)
  • Tries
    • Try
      • S(K);CHECK,XS(i)
      • Vars
        • B(f);XS(K)::QAR1(C)
      • Refutation
        • K(c);CHECK,P-FLIGHT
  • Actual
    • S(K);
    • Threat
      • R(L)+B(I),DCHECK,XB(e)
    • Vars
      • K(c);CHECK,P-FLIGHT,XP(F)::R(A)+S(B)
      • K(c);CHECK,P-FLIGHT::R(L)+B(I),XB(e)
      • B(e);OGATE,P_SPINB(e),XB(I)::R(L),XB(e)
      • B(f);N_GUARD::QAR1(C),XB(f)
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