MESON Chess Problem Database

Problem Display
PID: 76891 (8/8/BQR5/Kb1kp3/8/4P3/2P5/8 w - - 0 1)

Davey, David Murray

The Tablet, 1947

(First published on Sat Nov 8 1947)

8/8/BQR5/Kb1kp3/8/4P3/2P5/8

#2

6 + 3

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Rc5#
      • 2.Qc5#
      • 2.Qxb5#
  • Tries
    • 1.Kxb5?
      • 1...e4
        • 2.Rc5#
        • 2.Qd4#
        • 2.Qc5#
      • 1...Ke4!
    • 1.Bxb5?
      • 1...e4
        • 2.Rc5#
        • 2.Qd4#
        • 2.Qc5#
      • 1...Ke4!
    • 1.Bb7?
      • threat
        • 2.Rc5#
      • 1...Bxc6
        • 2.Qxc6#
      • 1...Ke4!
    • 1.Rd6+?
      • 1...Kc4
        • 2.Qc7#
        • 2.Qc6#
      • 1...Ke4!
  • Keys
    • 1.Rc4!
      • 1...Kxc4
        • 2.Qc6#
      • 1...Bxc4
        • 2.Bb7#
      • 1...Bxa6
        • 2.Qc6#
      • 1...Bc6
        • 2.Qxc6#
      • 1...e4
        • 2.Rc5#
      • 1...Ba4
        • 2.e4#
      • 1...Bd7
        • 2.e4#
      • 1...Be8
        • 2.e4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT,XB(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(D);XB(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(D);
      • Threat
        • B(D)+R(F),DCHECK
      • Vars
        • B(a);OGATE,P_SPINB(a),XR(F)::QAB1(E),XB(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(F);CHECK
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(F);
    • Vars
      • K(b);P_SPINB(a),S_FLIGHT,XR(F)::QAR2(E)
      • B(a);N_GUARD,SBLOCK,XR(F)::B(D)
      • B(a);N_GUARD,XB(D)::QAB1(E)
      • B(a);N_GUARD::QAB1(E),XB(a)
      • P(c);SBLOCK::R1(F)
      • B(a);::P(B)
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