MESON Chess Problem Database

Problem Display
PID: 77192 (b5K1/4p3/4R1pp/Q1n1pNB1/4k3/b3n2P/p3P1N1/q6B w - - 0 1)

Hicks, GJ

The Tablet, 1949

(First published on Sat May 14 1949)

b5K1/4p3/4R1pp/Q1n1pNB1/4k3/b3n2P/p3P1N1/q6B

#2

9 + 11

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Sgxe3#
    • 1...Qc3
      • 2.Sgxe3#
    • 1...Qd4
      • 2.Sgxe3#
    • 1...Bc1
      • 2.Sgxe3#
    • 1...Sd1
      • 2.Sge3#
      • 2.Sgh4#
    • 1...Sf1
      • 2.Sge3#
      • 2.Sgh4#
  • Tries
    • 1.Sgh4+?
      • 1...Sg2
        • 2.Bxg2#
      • 1...Qxh1!
    • 1.Rxe5+?
      • 1...Qxe5
        • 2.Sgxe3#
      • 1...Kxe5!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Rxe5#
      • 1...Kd5
        • 2.Sf4#
      • 1...Kxf5
        • 2.Rxe5#
      • 1...Qxc3
        • 2.Sgxe3#
      • 1...Sxe6
        • 2.Qd3#
      • 1...Bd5
        • 2.Sg3#
      • 1...Sc4
        • 2.Qf3#
      • 1...Sg4
        • 2.Qf3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sd7
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 3
  • Sets
    • Q(a);N_GUARD::B(A)+S(C),XS(d)
    • B(c);S_CUTQ(a)::B(A)+S(C),XS(d)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::B(A),XS(d)
      • Refutation
        • Q(a);XB(A)
    • Try
      • R(H);CHECK,XP(g)
      • Vars
        • Q(a);SBLOCK,XR(H)::B(A)+S(C),XS(d)
      • Refutation
        • K(e);P-FLIGHT,P_SPINS(f),XR(H)
  • Actual
    • Q(E);
    • Threat
      • R1(H),XP(g)
    • Vars
      • K(e);N_SPINP(g),S_FLIGHT::B(A)+S(C),DCHECK
      • K(e);N_SPINP(g),S_FLIGHT,XS(F)::R1(H),XP(g)
      • Q(a);N_GUARD,XQ(E)::B(A)+S(C),XS(d)
      • S(f);N_GUARD,N_SPINP(g),XR(H)::QAB1(E)
      • B(k);P_PINR(H),SBLOCK::S(F)
      • S(d);OGATE::QAB1(E)
      • S(f);N_GUARD::QAB1(E),XS(f)
      • S(f);N_GUARD::QAB1(E)
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