MESON Chess Problem Database

Problem Display
PID: 153731 (8/1B5N/3prP2/3P1N2/4k1p1/3n2B1/2Q5/1K6 w - - 0 1)

Laws, Benjamin Glover

Cheltenham Examiner, 1890

(First published on Wed Oct 15 1890)

8/1B5N/3prP2/3P1N2/4k1p1/3n2B1/2Q5/1K6

#2

8 + 5

15239 Valois Notebooks 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Sg5#
  • Tries
    • 1.Ba6?
      • threat
        • 2.Qxd3#
      • 1...Kf3
        • 2.Sg5#
      • 1...Kxd5
        • 2.Bb7#
        • 2.Qc4#
      • 1...Kxf5!
  • Keys
    • 1.Bc8!
      • 1...Kf3
        • 2.Sg5#
      • 1...Kxd5
        • 2.Bb7#
      • 1...Kxf5
        • 2.Qxd3#
      • 1...Rxf6
        • 2.Qg2#
      • 1...Re5
        • 2.Qg2#
      • 1...Re7
        • 2.Qg2#
      • 1...Re8
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINS(a),S_FLIGHT::S(H)
  • Tries
    • Try
      • B(G);
      • Threat
        • QAB1(B),XS(a)
      • Vars
        • K(b);N_SPINS(a),S_FLIGHT::S(H)
      • Refutation
        • K(b);S_FLIGHT,XS(E)
  • Actual
    • B(G);
    • Vars
      • K(b);N_SPINS(a),S_FLIGHT::S(H)
      • K(b);N_SPINS(a),OGATEB,S_FLIGHT,XP(D)::B(G)
      • K(b);P_SPINR(e),S_FLIGHT,XS(E)::QAB(B),XS(a)
      • R(e);XP(F)::QAB(B)
      • R(e);::QAB(B)
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