MESON Chess Problem Database

Problem Display
PID: 96879 (5bN1/1qn3Br/1p1N3p/pbrk1p1R/4pQ2/K1pppP1B/8/8 w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

200 Assorted Problems (Wenman), 1945

5bN1/1qn3Br/1p1N3p/pbrk1p1R/4pQ2/K1pppP1B/8/8

#2

8 + 15

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6
      • 2.Qe5#
    • 1...Rc6
      • 2.Qe5#
    • 1...Bc6
      • 2.Qe5#
    • 1...Bxd6
      • 2.Qxe4#
  • Tries
    • 1.Rxf5+?
      • 1...Ke6
        • 2.Rxc5#
      • 1...Kc6!
    • 1.Qxf5+?
      • 1...Kc6
        • 2.Qd7#
      • 1...Kxd6!
  • Keys
    • 1.Sxf5!
      • threat
        • 2.Qxe4#
      • 1...Rc4+
        • 2.Sfe7#
      • 1...Rc6+
        • 2.Sd6#
      • 1...Kc4
        • 2.Sxe3#
      • 1...Kc6
        • 2.Sd4#
      • 1...Ke6
        • 2.Sd4#
      • 1...exf3
        • 2.Sfe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • Q(l);SBLOCK::QAR1(D)
    • R(g);P_PINS(F),SBLOCK::QAR1(D)
    • B(f);SBLOCK::QAR1(D)
    • B(o);SBLOCK,XS(F)::QAB1(D),XP(d)
  • Tries
    • Try
      • R(E);CHECK,XP(i)
      • Vars
        • K(h);OGATE,S_FLIGHT::B(C)+R(E),XR(g)
      • Refutation
        • K(h);S_FLIGHT
    • Try
      • Q(D);CHECK,XP(i)
      • Vars
        • K(h);S_FLIGHT::QAB1(D)
      • Refutation
        • K(h);P-FLIGHT,XS(F)
  • Actual
    • S(F);XP(i)
    • Threat
      • QAB1(D),XP(d)
    • Vars
      • R(g);CHECK,SBLOCK::R(E)+S(F),DCHECK
      • R(g);CHECK,SBLOCK::R(E)+S(F)
      • K(h);P_SPINP(d),S_FLIGHT::S(F),XP(c)
      • K(h);S_FLIGHT::S(F)
      • K(h);S_FLIGHT::B(C)+S(F),DCHECK
      • P(d);XP(B)::R(E)+S(F),DCHECK
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