MESON Chess Problem Database

Problem Display
PID: 67877 (B3Nbq1/4p2b/1p2P3/1P2kpr1/1RRN4/8/K1Q3p1/B7 w - - 0 1)

Markwick, Frederick W

Stratford Express, 1911

B3Nbq1/4p2b/1p2P3/1P2kpr1/1RRN4/8/K1Q3p1/B7

#2

10 + 9

81 Chess 1948

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Sxf5#
    • 1...Qxe6
      • 2.Se2#
      • 2.Sb3#
      • 2.Sf3#
      • 2.Sxf5#
    • 1...Rg6
      • 2.Qxf5#
  • Tries
    • 1.Sc6+?
      • 1...Kd5
        • 2.Sd8#
      • 1...Kxe6!
    • 1.Rc5+?
      • 1...Kf4
        • 2.Sxf5#
      • 1...bxc5!
  • Keys
    • 1.Rc8!
      • threat
        • 2.Qc7#
      • 1...Qxe6+
        • 2.Sb3#
      • 1...Kf4
        • 2.Sxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(b);S_FLIGHT::R(E)+S(F),XP(c)
    • R(d);N_GUARD,S_CUTB(g)::QAR1(C),XP(c)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(b);P-FLIGHT::B(I)+S(F)
      • Refutation
        • K(b);P-FLIGHT,XP(H)
    • Try
      • R(E);CHECK,P_SPINP(H)
      • Vars
        • K(b);S_FLIGHT::R(D)+S(F),XP(c)
      • Refutation
        • P(e);XR(E)
  • Actual
    • R(E);P_SPINP(H)
    • Threat
      • QAB(C)
    • Vars
      • Q(i);CHECK,SBLOCK,XP(H)::B(A)+S(F)
      • K(b);S_FLIGHT::R(D)+S(F),XP(c)
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