MESON Chess Problem Database

Problem Display
PID: 175792 (2NK2b1/7B/8/1P1k2r1/P7/3N1P2/2P5/B1R4Q w - - 0 1)

Muir, WB

The Field, 1897

(First published on Sat May 8 1897)

2NK2b1/7B/8/1P1k2r1/P7/3N1P2/2P5/B1R4Q

#2

11 + 3

2425 San Francisco Chronicle 1898
6490 yacpdb 2018
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Sb6#
    • 1...Rh5
      • 2.Bxg8#
    • 1...Be6
      • 2.c4#
  • Tries
    • 1.Be4+?
      • 1...Kc4
        • 2.Sb6#
        • 2.Sd6#
      • 1...Ke6!
    • 1.Qh6?
      • threat
        • 2.Sb6#
        • 2.Qc6#
        • 2.c4#
      • 1...Kc4
        • 2.Sb6#
      • 1...Rg4
        • 2.Sb6#
        • 2.Qc6#
      • 1...Be6
        • 2.c4#
      • 1...Rg6!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Bxg8#
      • 1...Kc4
        • 2.Sb6#
      • 1...Ke6
        • 2.Sf4#
      • 1...Bxh7
        • 2.Qf7#
      • 1...Be6
        • 2.c4#
      • 1...Bf7
        • 2.Qxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT::S(J)
    • R(b);N_GUARD::B(I),XB(c)
    • B(c);SBLOCK::P(D)
  • Tries
    • Try
      • B(I);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • K(a);S_FLIGHT::S(J)
        • B(c);::P(D)
      • Refutation
        • R(b);
  • Actual
    • Q(C);P_PINR(b)
    • Threat
      • B(I),XB(c)
    • Vars
      • K(a);N_SPINR(b),S_FLIGHT::S(J)
      • K(a);N_SPINR(b),S_FLIGHT::S(E)
      • B(c);N_GUARD,XB(I)::QAB(C)
      • B(c);SBLOCK::P(D)
      • B(c);N_GUARD::QAB(C),XB(c)
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