MESON Chess Problem Database

Problem Display
PID: 271890 (3R4/2Kb4/6pq/1P2p3/BpQ3p1/2P5/N1rb4/1N1kn1R1 w - - 0 1)

Davis, Edward

Kipping, Cyril Stanley

The Problemist, 1956

3R4/2Kb4/6pq/1P2p3/BpQ3p1/2P5/N1rb4/1N1kn1R1

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Qxg4#
    • 1...Bxc3
      • 2.Qxg4#
    • 1...Be3
      • 2.Qxg4#
    • 1...Bg5
      • 2.Qxg4#
    • 1...Be8
      • 2.Qxg4#
  • Tries
    • 1.Rxe1+?
      • 1...Bxe1
        • 2.Qxg4#
      • 1...Kxe1!
  • Keys
    • 1.cxb4!
      • threat
        • 2.Bxc2#
      • 1...Bc3
        • 2.Qxg4#
      • 1...Bf5
        • 2.Sbc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(d);P_SPINB(j)::QAB(F),XP(f)
    • B(d);P_SPINB(j),XP(D)::QAB(F),XP(f)
    • B(j);N_GUARD,P_SPINB(d)::QAB(F),XP(f)
  • Tries
    • Try
      • R(B);CHECK,XS(b)
      • Vars
        • B(d);P_SPINB(j),SBLOCK,XR(B)::QAB(F),XP(f)
      • Refutation
        • K(a);N_SPINR(c),P-FLIGHT,XR(B)
  • Actual
    • P(D);P_SPINQ(F),XP(e)
    • Threat
      • B(E),XR(c)
    • Vars
      • B(d);N_PINQ(F),P_SPINB(j)::QAB(F),XP(f)
      • B(j);P_SPINB(d)::S(A)
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