MESON Chess Problem Database

Problem Display
PID: 220218 (4N3/8/4k1N1/8/Q7/8/5KB1/2R5 w - - 0 1)

Healey, Frank

The Field, 1885

(First published on Sat Feb 28 1885)

4N3/8/4k1N1/8/Q7/8/5KB1/2R5

#2

6 + 1

15239 Valois Notebooks 2020
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Kf3?
      • 1...Kd5
        • 2.Qd7#
        • 2.Qc4#
        • 2.Qe4#
      • 1...Kf5
        • 2.Qg4#
      • 1...Kf7!
    • 1.Kg3?
      • 1...Kf5
        • 2.Qg4#
      • 1...Kf7!
    • 1.Sd6?
      • 1...Kxd6
        • 2.Qc6#
      • 1...Kf6!
    • 1.Bf3?
      • 1...Kf5
        • 2.Qg4#
      • 1...Kf7!
    • 1.Bh3+?
      • 1...Kd5
        • 2.Qc4#
      • 1...Kf7!
    • 1.Bd5+?
      • 1...Kxd5
        • 2.Qc4#
      • 1...Kf5!
    • 1.Qc2?
      • 1...Kd7
        • 2.Qc8#
      • 1...Kf7!
    • 1.Qc6+?
      • 1...Kf7
        • 2.Bd5#
      • 1...Kf5!
    • 1.Qc4+?
      • 1...Kd7
        • 2.Qc8#
      • 1...Kf5!
    • 1.Qe4+?
      • 1...Kd7
        • 2.Qe7#
      • 1...Kf7!
  • Keys
    • 1.Rg1!
      • 1...Kf5
        • 2.Bh3#
      • 1...Kf7
        • 2.Bd5#

Anticipated by 24876(0000)

This anticipates 9655(1907), 183219(1907), 130181(1911), 84201(1989), 34937(1990-1991), 134754(1999)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(F)::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT,XB(C)::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);S_FLIGHT::B(C)
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