MESON Chess Problem Database

Problem Display
PID: 96838 (Q7/8/1P2R3/p2p1p2/3kNP2/8/4K3/8 w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

200 Assorted Problems (Wenman), 1945

Q7/8/1P2R3/p2p1p2/3kNP2/8/4K3/8

#2

6 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...a4
      • 2.Qxa4#
  • Tries
    • 1.Qc6?
      • threat
        • 2.Qa4#
        • 2.Qc3#
        • 2.Qc5#
      • 1...dxe4
        • 2.Rd6#
      • 1...a4
        • 2.Qxa4#
        • 2.Qc3#
        • 2.Qc5#
      • 1...fxe4!
    • 1.Qxa5?
      • threat
        • 2.Qc3#
        • 2.Qb4#
        • 2.Qa4#
        • 2.Qc5#
      • 1...Kc4
        • 2.Qa4#
      • 1...fxe4
        • 2.Qb4#
      • 1...dxe4!
    • 1.Qc8?
      • threat
        • 2.Qc3#
        • 2.Qc5#
      • 1...dxe4
        • 2.Rd6#
      • 1...fxe4!
  • Keys
    • 1.Rc6!
      • 1...Kxe4
        • 2.Rc4#
      • 1...dxe4
        • 2.Qd8#
      • 1...fxe4
        • 2.Qh8#
      • 1...a4
        • 2.Qxa4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE::QAR(F),XP(b)
  • Tries
    • Try
      • Q(F);
      • Threat
        • DUALS(3)
      • Vars
        • P(c);OGATEB,XS(B)::R(E)
      • Refutation
        • P(d);XS(B)
    • Try
      • Q(F);XP(b)
      • Threat
        • DUALS(4)
      • Vars
        • K(a);P-FLIGHT::QAR2(F)
        • P(d);XS(B)::QAR2(F)
      • Refutation
        • P(c);XS(B)
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);OGATEB,SBLOCK,XS(B)::R(E)
      • Refutation
        • P(d);XS(B)
  • Actual
    • R(E);
    • Vars
      • K(a);P-FLIGHT,XS(B)::R(E)
      • P(c);OGATEB,SBLOCK,XS(B)::QAR(F)
      • P(d);SBLOCK,XS(B)::QAB(F)
      • P(b);OGATE::QAR(F),XP(b)
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