MESON Chess Problem Database

Problem Display
PID: 183427 (3q1bbr/Qr2p2k/3PPR1N/5p2/5BNK/8/4n1R1/1B6 w - - 0 1)

Kipping, Cyril Stanley

The Problemist, 1943

3q1bbr/Qr2p2k/3PPR1N/5p2/5BNK/8/4n1R1/1B6

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bg7
      • 2.Bxf5#
  • Tries
    • 1.Rf7+?
      • 1...Kg6
        • 2.Se5#
        • 2.Bxf5#
      • 1...Bg7
        • 2.Bxf5#
      • 1...Bxf7!
  • Keys
    • 1.Rxf5!
      • threat
        • 2.Rf7#
      • 1...exd6+
        • 2.Rg5#
      • 1...Kg6
        • 2.Rg5#
      • 1...Kg7
        • 2.Rg5#
      • 1...Rxb1
        • 2.Sf6#
      • 1...Bg7
        • 2.Rb5#
      • 1...Bf7
        • 2.Rxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(g);SBLOCK::B(A),XP(b)
  • Tries
    • Try
      • R(H);CHECK
      • Vars
        • B(g);P_SPINB(g)::B(A),XP(b)
      • Refutation
        • B(h);XR(H)
  • Actual
    • R(H);XP(b)
    • Threat
      • B(A)+R(H),DCHECK
    • Vars
      • P(d);CHECK,P_SPINR(c),XP(F)::B(A)+R(H)
      • K(e);P_PINS(I),S_FLIGHT::B(A)+R(H),DCHECK
      • K(e);P-FLIGHT,P_PINS(I)::R(H)
      • R(c);P_SPINP(d),XB(A)::S(D)
      • B(g);SBLOCK::B(A)+R(H)
      • B(h);::B(A)+R(H),DCHECK,XB(h)
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