MESON Chess Problem Database

Problem Display
PID: 4617 (8/5Q2/5P2/8/2NkN3/8/2K3P1/8 w - - 0 1)

Hereward

Illustrated London News, 1884

8/5Q2/5P2/8/2NkN3/8/2K3P1/8

#2

6 + 1

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Kd1?
      • 1...Kd3
        • 2.Qd5#
      • 1...Kxe4!
    • 1.Qc7?
      • 1...Kxe4
        • 2.Qe5#
      • 1...Kd5!
    • 1.Qe7?
      • 1...Kxc4
        • 2.Qc5#
      • 1...Kd5!
  • Keys
    • 1.Qh5!
      • 1...Kxc4
        • 2.Qc5#
      • 1...Kxe4
        • 2.Qe5#

This anticipates 194171(1917), 119959(1924), 227453(1926), 71679(2006), 246013(2008), 207680(2015)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
    • Try
      • Q(F);
      • Vars
        • K(a);P-FLIGHT,XS(D)::QAR1(F)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(a);P-FLIGHT,XS(C)::QAR1(F)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(a);P-FLIGHT,XS(C)::QAR1(F)
      • K(a);P-FLIGHT,XS(D)::QAR1(F)
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