MESON Chess Problem Database

Problem Display
PID: 2563 (8/6P1/1R2PQ2/6p1/2P1k1p1/3p2P1/5P2/1B2K3 w - - 0 1)

Moore, Charles C

English Mechanic and World of Science, 1893

(First published on Fri Apr 7 1893)

8/6P1/1R2PQ2/6p1/2P1k1p1/3p2P1/5P2/1B2K3

#2

9 + 4

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Qb2?
      • 1...Kf5
        • 2.Bxd3#
      • 1...Kf3!
    • 1.Qc3?
      • 1...Kf5
        • 2.Bxd3#
      • 1...Kf3!
    • 1.Qd4+?
      • 1...Kf3
        • 2.Qd5#
      • 1...Kf5
        • 2.Bxd3#
      • 1...Kxd4!
    • 1.Qe5+?
      • 1...Kf3
        • 2.Qd5#
      • 1...Kxe5!
    • 1.Qxg5?
      • threat
        • 2.Qf4#
        • 2.Qd5#
      • 1...Kf3
        • 2.Qd5#
      • 1...Kd4!
  • Keys
    • 1.Qa1!
      • 1...Kf3
        • 2.Qa8#
      • 1...Kf5
        • 2.Bxd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(H);
      • Vars
        • K(b);S_FLIGHT::B(A),XP(a)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • Q(H);
      • Vars
        • K(b);S_FLIGHT::B(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB(H)
        • K(b);S_FLIGHT::B(A),XP(a)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT,XQ(H)
    • Try
      • Q(H);CHECK
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB(H)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT,XQ(H)
    • Try
      • Q(H);XP(d)
      • Threat
        • DUALS(2)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB(H)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
  • Actual
    • Q(H);
    • Vars
      • K(b);N_SPINP(a),S_FLIGHT::QAB(H)
      • K(b);S_FLIGHT::B(A),XP(a)
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