MESON Chess Problem Database

Problem Display
PID: 232282 (2K5/2B5/3N4/Q1p5/1q6/p1k1p3/P2RP3/2bB3R w - - 0 1)

Thursby, John Ormerod Scarlett

The Field, 1900

(First published on Sat Apr 14 1900)

2K5/2B5/3N4/Q1p5/1q6/p1k1p3/P2RP3/2bB3R

#2

9 + 6

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd2
      • 2.Se4#
    • 1...Qxa5
      • 2.Bxa5#
    • 1...Bb2
      • 2.Rd3#
    • 1...c4
      • 2.Se4#
  • Tries
    • 1.Sb5+?
      • 1...Kc4
        • 2.Rh4#
      • 1...Kxd2!
    • 1.Qxc5+?
      • 1...Kxd2
        • 2.Qxb4#
        • 2.Qc2#
      • 1...Qc4
        • 2.Se4#
        • 2.Ba5#
        • 2.Rc2#
      • 1...Qxc5!
  • Keys
    • 1.Bd8!
      • 1...Kxd2
        • 2.Se4#
      • 1...Qxa5
        • 2.Bxa5#
      • 1...Bxd2
        • 2.Bf6#
      • 1...exd2
        • 2.Bf6#
      • 1...Bb2
        • 2.Rd3#
      • 1...c4
        • 2.Se4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT,XR(D)::S(G)
    • Q(e);N_SPINQ(e),OGATE,XQ(F)::B(H),XQ(e)
    • B(a);SBLOCK::R1(D)
    • P(f);SBLOCK::S(G)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(c);N_SPINQ(e),P-FLIGHT::R(B)
      • Refutation
        • K(c);S_FLIGHT,XR(D)
    • Try
      • Q(F);CHECK,N_PINQ(e),XP(f)
      • Refutation
        • Q(e);P_PINB(H),XQ(F)
  • Actual
    • B(H);
    • Vars
      • K(c);S_FLIGHT,XR(D)::S(G)
      • Q(e);N_SPINQ(e),OGATE,XQ(F)::B(H),XQ(e)
      • B(a);SBLOCK,XR(D)::B(H)
      • P(d);SBLOCK,XR(D)::B(H)
      • B(a);SBLOCK::R1(D)
      • P(f);SBLOCK::S(G)
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