MESON Chess Problem Database

Problem Display
PID: 30853 (7Q/5P2/8/3PP3/4kp2/1N5P/1PR4B/1B2K3 w - - 0 1)

Winter-Wood, Edward John

Illustrated London News, 1885

(First published on Sat Feb 14 1885)

7Q/5P2/8/3PP3/4kp2/1N5P/1PR4B/1B2K3

#2

11 + 2

15 British Chess Magazine 1886
3392 Chess Souvenirs 1886
3713 Snap 2002
15254 EJWW Scrapbook 2011
15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Rc3#
    • 1...Ke3
      • 2.Rc3#
    • 1...Kf5
      • 2.Rg2#
  • Tries
    • 1.Re2+?
      • 1...Kf3
        • 2.Sd2#
        • 2.Sd4#
        • 2.Be4#
        • 2.Qh5#
      • 1...Kxd5!
    • 1.Rf2+?
      • 1...Ke3
        • 2.Bxf4#
      • 1...Kxd5!
    • 1.Rc5+?
      • 1...Ke3
        • 2.Rc3#
      • 1...Kf3!
    • 1.Qf6?
      • 1...Kd3
        • 2.Rc3#
      • 1...Ke3
        • 2.Rc3#
      • 1...Kf3
        • 2.Qxf4#
      • 1...Kxd5
        • 2.Rc5#
      • 1...f3!
    • 1.Qd8?
      • 1...Kd3
        • 2.Rc3#
      • 1...Ke3
        • 2.Rc3#
      • 1...Kxe5
        • 2.Re2#
      • 1...Kf5
        • 2.Re2#
      • 1...f3
        • 2.Re2#
        • 2.Rc3#
      • 1...Kf3!
  • Keys
    • 1.Qh6!
      • 1...Kd3
        • 2.Rc3#
      • 1...Ke3
        • 2.Rc3#
      • 1...Kf3
        • 2.Qxf4#
      • 1...Kxd5
        • 2.Rc5#
      • 1...Kxe5
        • 2.Qe6#
      • 1...Kf5
        • 2.Re2#
      • 1...f3
        • 2.Rd2#
        • 2.Rc5#

This anticipates 1146(1987)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(A)+R(D),DCHECK
    • K(a);P-FLIGHT::R(D)
    • K(a);S_FLIGHT::B(A)+R(D)
  • Tries
    • Try
      • R(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • R(D);CHECK
      • Vars
        • K(a);P-FLIGHT::B(E),XP(b)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • R(D);CHECK
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(K);
      • Vars
        • K(a);S_FLIGHT::B(A)+R(D),DCHECK
        • K(a);P-FLIGHT::R(D)
        • K(a);P_SPINP(b),S_FLIGHT::QAR1(K),XP(b)
        • K(a);S_FLIGHT,XP(H)::R1(D)
      • Refutation
        • P(b);
    • Try
      • Q(K);
      • Vars
        • K(a);S_FLIGHT::B(A)+R(D),DCHECK
        • K(a);P-FLIGHT::R(D)
        • K(a);P-FLIGHT,P_SPINP(b),XP(I)::R(D)
        • K(a);S_FLIGHT::B(A)+R(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(K);
    • Vars
      • K(a);S_FLIGHT::B(A)+R(D),DCHECK
      • K(a);P-FLIGHT,P_SPINP(b)::R(D)
      • K(a);S_FLIGHT::QAR1(K),XP(b)
      • K(a);S_FLIGHT,XP(H)::R1(D)
      • K(a);OGATEB,P-FLIGHT,P_SPINP(b),XP(I)::QAR1(K)
      • K(a);S_FLIGHT::B(A)+R(D)
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