MESON Chess Problem Database

Problem Display
PID: 186694 (8/8/4p1K1/8/4k1p1/b1PnB3/B4P2/1Q2RNr1 w - - 0 1)

Stanley, Cyril (Kipping, Cyril Stanley)

Chess, 1960

8/8/4p1K1/8/4k1p1/b1PnB3/B4P2/1Q2RNr1

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Qb7#
    • 1...e5
      • 2.Sd2#
      • 2.Qb7#
  • Tries
    • 1.Kf6?
      • threat
        • 2.Sd2#
        • 2.Qb7#
      • 1...Kf3
        • 2.Qb7#
      • 1...Rxf1
        • 2.Qb7#
      • 1...Bc1
        • 2.Qb7#
      • 1...Bb2
        • 2.Sd2#
      • 1...Bb4
        • 2.Sd2#
      • 1...Be7+!
    • 1.f3+?
      • 1...Kxf3
        • 2.Qb7#
      • 1...gxf3+
        • 2.Bg5#
      • 1...Ke5!
  • Keys
    • 1.f4!
      • threat
        • 2.Sd2#
        • 2.Qb7#
      • 1...gxf4 ep+
        • 2.Bg5#
      • 1...Kf3
        • 2.Qb7#
      • 1...Rxf1
        • 2.Qb7#
      • 1...Rg2
        • 2.Qb7#
      • 1...Bc1
        • 2.Qb7#
      • 1...Bb2
        • 2.Sd2#
      • 1...Bb4
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINS(c),S_FLIGHT::QAB(A)
  • Tries
    • Try
      • K(H);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • K(d);N_SPINS(c),S_FLIGHT::QAB(A)
        • R(a);P_PINP(E),XS(C)::QAB(A)
        • B(b);::QAB(A)
        • B(b);P_PINP(F)::S(C)
        • B(b);::S(C)
      • Refutation
        • B(b);CHECK
    • Try
      • P(E);CHECK
      • Vars
        • K(d);N_SPINS(c),S_FLIGHT,XP(E)::QAB(A)
        • P(e);CHECK,SBLOCK,XP(E)::R(B)+B(G)
      • Refutation
        • K(d);N_SPINS(c),P-FLIGHT
  • Actual
    • P(E);
    • Threat
      • DUALS(2)
    • Vars
      • P(e);CHECK,EP,OGATE,XP(E)::R(B)+B(G)
      • K(d);N_SPINS(c),S_FLIGHT::QAB(A)
      • R(a);XS(C)::QAB(A)
      • R(a);::QAB(A)
      • B(b);::QAB(A)
      • B(b);::S(C)
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