MESON Chess Problem Database

Problem Display
PID: 56153 (B1Q1K3/8/4n3/2P2k1P/3RNP2/5R1P/8/8 w - - 0 1)

Mansfield, Comins

Complete Mansfield/III, 1999

B1Q1K3/8/4n3/2P2k1P/3RNP2/5R1P/8/8

#2

10 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Kd7?
      • 1...Sxc5+
        • 2.Qxc5#
      • 1...Sf8+
        • 2.Qxf8#
      • 1...Sxd4
        • 2.Qf8#
      • 1...Sxf4
        • 2.Kd6#
      • 1...Sc7
        • 2.Kxc7#
        • 2.Qf8#
      • 1...Sg7
        • 2.Qf8#
      • 1...Sd8
        • 2.Kxd8#
      • 1...Sg5!
  • Keys
    • 1.Rd7!
      • threat
        • 2.Rf7#
      • 1...Sc7+
        • 2.Rxc7#
      • 1...Sg7+
        • 2.Rxg7#
      • 1...Sxf4
        • 2.Re7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(J);N_PINS(b),S_FLIGHT
      • Vars
        • S(b);CHECK,OGATE,XP(F)::QAR(I),XS(b)
        • S(b);CHECK,N_GUARD::QAR(I),XS(b)
        • S(b);N_GUARD,XR(C)::QAR(I)
        • S(b);P_SPINS(b),XP(E)::QAB(I)+K(J)
        • S(b);N_GUARD::QAR(I)
        • S(b);::QAB(I)+K(J),XS(b)
      • Refutation
        • S(b);
  • Actual
    • R(C);N_PINS(b)
    • Threat
      • R(C)
    • Vars
      • S(b);CHECK,OGATEB::QAB(I)+R(C),XS(b)
      • S(b);OGATEB,P_SPINS(b),XP(E)::QAB(I)+R(C)
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