MESON Chess Problem Database

Problem Display
PID: 282309 (1Q3B2/5N2/8/1PN3P1/1p1kP2p/1p5P/1R4K1/8 w - - 0 1)

Wood, Henry A

Bolton Football Field, 1873

(First published on Tue Jun 17 1873)

1Q3B2/5N2/8/1PN3P1/1p1kP2p/1p5P/1R4K1/8

#2

10 + 4

15239 Valois Notebooks 2025

SOLUTION

  • SOUND
  • Tries
    • 1.Qg3?
      • threat
        • 2.Qd3#
      • 1...Kc4
        • 2.Qd3#
      • 1...hxg3!
    • 1.Qe5+?
      • 1...Kc4
        • 2.Sd6#
      • 1...Ke3!
    • 1.Qd6+?
      • 1...Ke3
        • 2.Qd2#
      • 1...Kc4
        • 2.Qd3#
      • 1...Kc3!
    • 1.Qd8+?
      • 1...Ke3
        • 2.Qd2#
      • 1...Kc4
        • 2.Qd3#
      • 1...Kc3!
  • Keys
    • 1.Sd6!
      • 1...Kc3
        • 2.Bg7#
      • 1...Ke3
        • 2.Sf5#
      • 1...Kxc5
        • 2.Qa7#
      • 1...Ke5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(I);
      • Threat
        • QAR1(I)
      • Vars
        • K(c);P-FLIGHT::QAB1(I)
      • Refutation
        • P(d);XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • K(c);N_GUARD,P-FLIGHT::S(H)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAB1(I)
        • K(c);OGATE,P-FLIGHT::QAB1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAB1(I)
        • K(c);OGATE,P-FLIGHT::QAB1(I)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(H);
    • Vars
      • K(c);N_GUARD,S_FLIGHT::B(J)
      • K(c);N_GUARD,S_FLIGHT::S(H)
      • K(c);OGATEB,S_FLIGHT,XS(F)::QAB(I)
      • K(c);N_GUARD,S_FLIGHT::QAB(I)+S(H)
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