MESON Chess Problem Database

Problem Display
PID: 220379 (n1R2N2/2n5/8/N1kp4/8/8/KB5Q/5B2 w - - 0 1)

Bristow, Henry

The Field, 1885

(First published on Sat Jun 6 1885)

n1R2N2/2n5/8/N1kp4/8/8/KB5Q/5B2

#2

7 + 4

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qf4?
      • threat
        • 2.Sd7#
      • 1...d4
        • 2.Qxd4#
      • 1...Sb6
        • 2.Se6#
        • 2.Ba3#
        • 2.Rxc7#
      • 1...Kb6!
    • 1.Qh4?
      • 1...Kd6
        • 2.Qb4#
      • 1...d4
        • 2.Qxd4#
      • 1...Sb6
        • 2.Ba3#
        • 2.Qe7#
      • 1...Kb6!
  • Keys
    • 1.Qd2!
      • 1...Kb6
        • 2.Bd4#
      • 1...Kd6
        • 2.Qb4#
      • 1...d4
        • 2.Qxd4#
      • 1...Sb6
        • 2.Ba3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • S(G)
      • Vars
        • P(b);::QAB1(D),XP(b)
      • Refutation
        • K(a);N_SPINS(c),S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);N_SPINS(c),S_FLIGHT::QAB(D)
        • P(b);::QAB1(D),XP(b)
      • Refutation
        • K(a);N_SPINS(c),S_FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(a);N_SPINS(c),S_FLIGHT::B(C)
      • K(a);N_SPINS(c),P_SPINP(b),S_FLIGHT::QAB(D)
      • P(b);::QAB1(D),XP(b)
      • S(d);SBLOCK::B(C)
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