MESON Chess Problem Database

Problem Display
PID: 40351 (q1B2b1B/2n5/1p1N4/pbrk1p1R/4pQ2/K1pp1P2/8/8 w - - 0 1)

Vane Bor

1st HM., BCF 028. Ty., 1938-1939

q1B2b1B/2n5/1p1N4/pbrk1p1R/4pQ2/K1pp1P2/8/8

#2

7 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6
      • 2.Rxf5#
      • 2.Qe5#
      • 2.fxe4#
    • 1...Rc6
      • 2.Rxf5#
      • 2.Qe5#
    • 1...Bc6
      • 2.Rxf5#
      • 2.Qe5#
      • 2.fxe4#
    • 1...Bxd6
      • 2.Qxe4#
  • Tries
    • 1.Qxf5+?
      • 1...Kc6
        • 2.Qd7#
      • 1...Kxd6!
  • Keys
    • 1.Sxf5!
      • threat
        • 2.Qxe4#
      • 1...Rc4+
        • 2.Se7#
      • 1...Rc6+
        • 2.Sd6#
      • 1...Kc4
        • 2.Se3#
      • 1...Kc6
        • 2.Sd4#
      • 1...exf3
        • 2.Se7#
      • 1...e3
        • 2.Se7#
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • B(l);SBLOCK,XS(E)::QAB1(C),XP(c)
  • Tries
    • Try
      • Q(C);CHECK,XP(h)
      • Vars
        • K(g);S_FLIGHT::QAB1(C)
      • Refutation
        • K(g);P-FLIGHT,XS(E)
  • Actual
    • S(E);XP(h)
    • Threat
      • QAB1(C),XP(c)
    • Vars
      • R(f);CHECK,SBLOCK::R(D)+S(E),DCHECK
      • R(f);CHECK,SBLOCK::R(D)+S(E)
      • K(g);P_SPINP(c),S_FLIGHT::S(E)
      • K(g);S_FLIGHT::S(E)
      • P(c);XP(B)::R(D)+S(E),DCHECK
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