MESON Chess Problem Database

Problem Display
PID: 142495 (8/p6K/PbQ2pB1/4k3/N5p1/4p1P1/4P3/8 w - - 0 1)

Churcher, W

British Chess Magazine, 1891

8/p6K/PbQ2pB1/4k3/N5p1/4p1P1/4P3/8

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qe4#
  • Tries
    • 1.Be4?
      • threat
        • 2.Qd5#
      • 1...Kd4
        • 2.Qd5#
      • 1...f5!
    • 1.Bf7?
      • threat
        • 2.Qd5#
      • 1...Kd4
        • 2.Qd5#
      • 1...Kf5
        • 2.Qd5#
      • 1...f5!
    • 1.Qe6+?
      • 1...Kd4
        • 2.Qe4#
      • 1...Kxe6!
  • Keys
    • 1.Bf5!
      • 1...Kd4
        • 2.Qe4#
      • 1...Kxf5
        • 2.Qd5#
      • 1...Ba5
        • 2.Qc5#
      • 1...Bd4
        • 2.Qe6#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Bc7
        • 2.Qc5#
      • 1...Bd8
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAR1(E)
  • Tries
    • Try
      • B(F);
      • Threat
        • QAR1(E)
      • Vars
        • K(c);S_FLIGHT::QAR1(E)
      • Refutation
        • P(e);
    • Try
      • B(F);
      • Threat
        • QAR1(E)
      • Vars
        • K(c);S_FLIGHT::QAR1(E)
        • K(c);P-FLIGHT::QAR2(E)
      • Refutation
        • P(e);
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(E)
      • Refutation
        • K(c);P-FLIGHT,XQ(E)
  • Actual
    • B(F);
    • Vars
      • K(c);S_FLIGHT::QAR1(E)
      • K(c);P-FLIGHT,XB(F)::QAR2(E)
      • B(d);N_GUARD::QAR2(E)
      • B(d);SBLOCK::QAR1(E)
      • B(d);N_GUARD::QAR2(E),XB(d)
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