MESON Chess Problem Database

Problem Display
PID: 226448 (7n/4Kp2/6b1/2p1k3/3b1NP1/8/Q5B1/8 w - - 0 1)

Palmer, JT

Preston Guardian, 1881

(First published on Wed Feb 9 1881)

7n/4Kp2/6b1/2p1k3/3b1NP1/8/Q5B1/8

#2

5 + 6

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Sxd3#
    • 1...Bh5
      • 2.Sd3#
    • 1...f5
      • 2.Sd3#
  • Tries
    • 1.Qa6?
      • threat
        • 2.Qd6#
        • 2.Qf6#
      • 1...Bf5
        • 2.Qd6#
      • 1...f5
        • 2.Sd3#
        • 2.Qd6#
      • 1...f6
        • 2.Qd6#
        • 2.Qxf6#
      • 1...Kxf4!
  • Keys
    • 1.Qxf7!
      • threat
        • 2.Qf6#
      • 1...Bxf7
        • 2.Sd3#
      • 1...Sxf7
        • 2.Sxg6#
      • 1...Bf5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(d);N_GUARD::S(C),XB(d)
    • B(d);N_GUARD::S(C)
    • P(e);S_CUTB(d)::S(C)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(d);::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
  • Actual
    • Q(A);XP(e)
    • Threat
      • QAB1(A)
    • Vars
      • B(d);N_GUARD,XQ(A)::S(C)
      • S(f);N_GUARD,XQ(A)::S(C),XB(d)
      • B(d);N_GUARD::QAR1(A),XB(d)
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