MESON Chess Problem Database

Problem Display
PID: 43906 (5q2/8/5r2/p1r4p/2p1k2P/2B1NNQ1/3P4/K6B w - - 0 1)

Thomas, Samuel H

The Westminster Papers, 1877

5q2/8/5r2/p1r4p/2p1k2P/2B1NNQ1/3P4/K6B

#2

8 + 7

162 Land and Water 1877
15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sd4+?
      • 1...Kd3
        • 2.Sef5#
      • 1...Rf3!
    • 1.Qg4+?
      • 1...Kd3
        • 2.Se1#
      • 1...Rf4
        • 2.Se1#
        • 2.Se5#
      • 1...hxg4!
  • Keys
    • 1.Sf5!
      • threat
        • 2.S3d4#
      • 1...Kd3
        • 2.S3d4#
      • 1...Kd5
        • 2.S3d4#
        • 2.Sg5#
      • 1...Kxf5
        • 2.Sd4#
      • 1...Rcxf5
        • 2.Sg5#
      • 1...Rfxf5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR(G)+S(E)
      • Refutation
        • R(f);P_SPINR(f)
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);S_FLIGHT::S(F)
      • Refutation
        • P(e);XQ(G)
  • Actual
    • S(E);
    • Threat
      • B(B)+S(F)
    • Vars
      • K(b);S_FLIGHT::QAR(G)+S(F)
      • K(b);S_FLIGHT,XS(E)::S(F)
      • R(d);SBLOCK,XS(E)::B(B)+S(F),DCHECK
      • R(f);SBLOCK,XS(E)::B(B)+S(F),DCHECK
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