MESON Chess Problem Database

Problem Display
PID: 186166 (5B2/2bR4/np1q4/r4p2/3kN3/pP4Q1/N3P2K/7B w - - 0 1)

Stanley, Cyril (Kipping, Cyril Stanley)

Chess, 1959

5B2/2bR4/np1q4/r4p2/3kN3/pP4Q1/N3P2K/7B

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Qd3#
  • Tries
    • 1.Sxd6?
      • threat
        • 2.Sb5#
        • 2.Sxf5#
        • 2.Qc3#
      • 1...Kc5
        • 2.Qf2#
        • 2.Qe5#
        • 2.Qg1#
        • 2.Qc3#
        • 2.Qe3#
      • 1...f4
        • 2.Qc3#
      • 1...Rb5
        • 2.Sxb5#
        • 2.Sxf5#
        • 2.Qc3#
      • 1...Rc5
        • 2.Sb5#
        • 2.Sxf5#
        • 2.Qf4#
      • 1...b5
        • 2.Sxb5#
        • 2.Sxf5#
        • 2.Qc3#
      • 1...Bxd6!
    • 1.Bg7+?
      • 1...Re5
        • 2.Qd3#
      • 1...Kd5!
    • 1.Rxd6+?
      • 1...Rd5
        • 2.Bg7#
        • 2.Qc3#
      • 1...Bxd6!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Se6#
      • 1...Kxc5
        • 2.Qe5#
      • 1...Qxd7
        • 2.e3#
      • 1...Rxc5
        • 2.Qf4#
      • 1...Sxc5
        • 2.Bg7#
      • 1...bxc5
        • 2.Bg7#
        • 2.Qf4#
      • 1...f4
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(c);N_PINQ(F),SBLOCK::QAR1(F)
  • Tries
    • Try
      • S(G);N_SPINQ(F),XQ(g)
      • Threat
        • DUALS(3)
      • Vars
        • P(d);::QAB1(F)
      • Refutation
        • B(h);P_PINQ(F),P_SPINB(h),XS(G)
    • Try
      • B(I);CHECK
      • Vars
        • R(c);N_PINQ(F),P_SPINR(c)::QAR1(F)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(H);CHECK,N_SPINQ(F),XQ(g)
      • Refutation
        • B(h);P_PINQ(F),XR(H)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • K(b);S_FLIGHT,XS(G)::QAR2(F)
      • Q(g);N_SPINQ(g),XR(H)::P(C)
      • R(c);SBLOCK,XS(G)::QAR2(F)
      • S(e);SBLOCK,XS(G)::B(I)
      • P(d);N_PINQ(F)::QAB1(F)
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