MESON Chess Problem Database

Problem Display
PID: 259401 (8/8/8/B2Q4/N1R5/kNp5/P1Bp4/n2Kb3 w - - 0 1)

Keeble, John Frederick

Western Morning News, 1924

(First published on Sat May 31 1924)

8/8/8/B2Q4/N1R5/kNp5/P1Bp4/n2Kb3

#2

8 + 5

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Bb4+?
      • 1...Kxa4
        • 2.Sxa1#
        • 2.Bd6#
        • 2.Be7#
        • 2.Bf8#
        • 2.Qc6#
        • 2.Qa5#
        • 2.Qd7#
      • 1...Kxa2!
  • Keys
    • 1.Rxc3!
      • threat
        • 2.Sxa1#
      • 1...Kxa2
        • 2.Sc1#
      • 1...Kxa4
        • 2.Sxa1#
      • 1...Sxc2
        • 2.Sbc5#
      • 1...Sxb3
        • 2.Qxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(G);CHECK
      • Refutation
        • K(d);P-FLIGHT,XP(B)
  • Actual
    • R(F);XP(e)
    • Threat
      • R(F)+S(D),XS(a)
    • Vars
      • K(d);P-FLIGHT,XP(B)::QAB(H)+S(D),DCHECK
      • K(d);P-FLIGHT,XS(E)::B(C)+S(D),XS(a)
      • S(a);N_GUARD,XB(C)::R(F)+S(D)
      • S(a);OGATE,P_SPINS(a),XS(D)::QAR1(H),XS(a)
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