MESON Chess Problem Database

Problem Display
PID: 282798 (5B2/1Q6/2nrN1P1/3k4/5P2/K7/8/2R5 w - - 0 1)

Furness, John

Bolton Football Field, 1893

(First published on Sat Nov 25 1893)

5B2/1Q6/2nrN1P1/3k4/5P2/K7/8/2R5

#2

7 + 3

15239 Valois Notebooks 2025

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Qf7#
    • 1...Rd7
      • 2.Qxc6#
    • 1...Rd8
      • 2.Qxc6#
  • Tries
    • 1.Rd1+?
      • 1...Kc4
        • 2.Qb3#
      • 1...Kxe6
        • 2.Qf7#
      • 1...Ke4!
    • 1.Re1?
      • threat
        • 2.Qb3#
        • 2.Qb5#
      • 1...Kc4
        • 2.Qb3#
      • 1...Rxe6!
    • 1.Rc5+?
      • 1...Kxe6
        • 2.Qf7#
      • 1...Ke4!
  • Keys
    • 1.Rc4!
      • 1...Kxc4
        • 2.Qb3#
      • 1...Kxe6
        • 2.Qf7#
      • 1...Rxe6
        • 2.Qb5#
      • 1...Rd7
        • 2.Qxc6#
      • 1...Rd8
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINS(b),OGATEB,S_FLIGHT,XS(D)::QAB1(F)
    • R(c);N_GUARD::QAB1(F),XS(b)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • K(a);N_GUARD,N_SPINS(b),S_FLIGHT::QAB1(F)
        • K(a);N_GUARD,N_SPINS(b),S_CUTS(b),S_FLIGHT,XS(D)::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);N_SPINS(b),S_FLIGHT::QAB1(F)
      • Refutation
        • R(c);XS(D)
    • Try
      • R(A);CHECK
      • Vars
        • K(a);N_GUARD,N_SPINS(b),S_FLIGHT,XS(D)::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);N_SPINS(b),OGATEB,S_FLIGHT,XR(A)::QAB1(F)
      • K(a);N_SPINS(b),OGATEB,S_FLIGHT,XS(D)::QAB1(F)
      • R(c);SBLOCK,XS(D)::QAR2(F)
      • R(c);N_GUARD::QAB1(F),XS(b)
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