MESON Chess Problem Database

Problem Display
PID: 158508 (B2N1B2/p7/N7/Pk6/5bQR/4P3/2K5/8 w - - 0 1)

Andrew, Frederick William

Sp. Comm., The Schoolmaster, 1895

(First published on Sat Feb 9 1895)

B2N1B2/p7/N7/Pk6/5bQR/4P3/2K5/8

#2

9 + 3

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qe2#
  • Tries
    • 1.Qf5+?
      • 1...Ka4
        • 2.Bc6#
        • 2.Rxf4#
      • 1...Kc4
        • 2.Rxf4#
        • 2.Qd3#
        • 2.Qc5#
        • 2.Qd5#
      • 1...Kxa6
        • 2.Bb7#
      • 1...Be5!
  • Keys
    • 1.Sb7!
      • 1...Ka4
        • 2.Qd7#
      • 1...Kc4
        • 2.Sd6#
      • 1...Kxa6
        • 2.Qe2#
      • 1...Kc6
        • 2.Sd6#
      • 1...Bxe3
        • 2.Qc4#
      • 1...Bh2
        • 2.Qc4#
      • 1...Bg3
        • 2.Qc4#
      • 1...Be5
        • 2.Qc4#
      • 1...Bg5
        • 2.Qc4#
      • 1...Bd6
        • 2.Qc4#
      • 1...Bh6
        • 2.Qc4#
      • 1...Bc7
        • 2.Qc4#
      • 1...Bb8
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINB(a),S_FLIGHT::QAB(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(F)::B(G)
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • S(H);
    • Vars
      • K(b);P_SPINB(a),S_FLIGHT::QAB(C)
      • K(b);P_SPINB(a),S_FLIGHT::S(H)
      • K(b);S_FLIGHT,XS(F)::QAB(C)
      • K(b);S_FLIGHT::B(G)+S(H)
      • B(a);OGATE,XP(B)::QAB1(C)
      • B(a);OGATE::QAB1(C)
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