MESON Chess Problem Database

Problem Display
PID: 214736 (7Q/1n6/2N5/3k4/8/B7/4K3/1R6 w - - 0 1)

English, William

Detroit Free Press, 1877

7Q/1n6/2N5/3k4/8/B7/4K3/1R6

#2

5 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qd4#
    • 1...Ke4
      • 2.Qe5#
  • Tries
    • 1.Qe5+?
      • 1...Kc4
        • 2.Rb4#
        • 2.Qd4#
      • 1...Kxc6!
  • Keys
    • 1.Rxb7!
      • 1...Kc4
        • 2.Qd4#
      • 1...Ke4
        • 2.Qe5#
      • 1...Kxc6
        • 2.Qh1#
      • 1...Ke6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(E)
  • Tries
    • Try
      • Q(E);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(D)
  • Actual
    • R(A);XS(b)
    • Vars
      • K(a);S_FLIGHT::QAR1(E)
      • K(a);S_FLIGHT,XS(D)::QAB(E)
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