MESON Chess Problem Database

Problem Display
PID: 64275 (2Q5/8/3B4/3b4/3k4/8/8/K1N5 w - - 0 1)

Nield, Joshua

Bolton Football and Field, 1926

2Q5/8/3B4/3b4/3k4/8/8/K1N5

#2

4 + 2

81 Chess 1946
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Qc5#
  • Tries
    • 1.Qc3+?
      • 1...Ke4
        • 2.Qd3#
      • 1...Kxc3!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qd3#
      • 1...Kc3
        • 2.Qd3#
      • 1...Ke3
        • 2.Qf4#
      • 1...Kc4
        • 2.Qd3#
      • 1...Bc4
        • 2.Qe5#
      • 1...Be4
        • 2.Qc5#

Anticipated by 57310(1872), 207506(1872), 212972(1882), 5103(1899), 248100(1899)

This is a version of 142031

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::QAB1(D)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT,XQ(D)
  • Actual
    • Q(D);
    • Threat
      • QAR1(D)
    • Vars
      • K(a);S_FLIGHT::QAR1(D)
      • K(a);S_FLIGHT::QAB1(D)
      • K(a);P-FLIGHT::QAB1(D)
      • B(b);SBLOCK::QAB1(D)
      • B(b);OGATE,SBLOCK::QAB1(D)
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