MESON Chess Problem Database

Problem Display
PID: 186134 (KN2b3/2pp3n/1pr1P1p1/4k3/2B5/4BRN1/n4p2/3RQ1r1 w - - 0 1)

Stanley, Cyril (Kipping, Cyril Stanley)

Chess, 1959

KN2b3/2pp3n/1pr1P1p1/4k3/2B5/4BRN1/n4p2/3RQ1r1

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rg2
      • 2.Bxf2#
    • 1...Rxg3
      • 2.Bxf2#
    • 1...Rd6
      • 2.Bd4#
    • 1...Rxe6
      • 2.Rd5#
    • 1...Bf7
      • 2.Sxd7#
    • 1...Sc1
      • 2.Qc3#
    • 1...Sc3
      • 2.Qxc3#
    • 1...Sb4
      • 2.Qc3#
    • 1...Sf6
      • 2.Bf4#
    • 1...g5
      • 2.Rf5#
    • 1...d6
      • 2.Bd4#
  • Tries
    • 1.Rf7?
      • threat
        • 2.Bf4#
      • 1...Bxf7
        • 2.Sxd7#
      • 1...Sf6!
  • Keys
    • 1.exd7!
      • threat
        • 2.Sxc6#
      • 1...Rxg3
        • 2.Bxf2#
      • 1...Rxc4
        • 2.dxe8Q#
        • 2.dxe8R#
      • 1...Bxd7
        • 2.Sxd7#
      • 1...Rd6
        • 2.Bd4#
      • 1...Rc5
        • 2.dxe8Q#
        • 2.dxe8R#
      • 1...Re6
        • 2.Rd5#
      • 1...Rf6
        • 2.Bf4#
      • 1...Sb4
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD::QAR(B)+B(C),XP(c)
    • R(a);N_GUARD,XS(E)::QAR(B)+B(C),XP(c)
    • R(f);SBLOCK::QAR(B)+B(C),DCHECK
    • R(f);SBLOCK,XP(G)::R1(A)
    • B(k);N_GUARD::S(I),XP(i)
    • S(b);N_GUARD::QAB(B)
    • S(b);N_GUARD::QAB(B),XS(b)
    • S(j);SBLOCK::QAR(B)+B(C),DCHECK
    • P(g);N_GUARD::R1(D)
    • P(i);SBLOCK::QAR(B)+B(C),DCHECK
  • Tries
    • Try
      • R(D);
      • Threat
        • QAR(B)+B(C),DCHECK
      • Vars
        • B(k);N_GUARD,XR(D)::S(I),XP(i)
      • Refutation
        • S(j);
  • Actual
    • P(G);XP(i)
    • Threat
      • S(I),XR(f)
    • Vars
      • R(a);N_GUARD,XS(E)::QAR(B)+B(C),XP(c)
      • R(f);N_GUARD,XB(F)::PXB(k)=Q
      • B(k);XP(G)::S(I),XB(k)
      • R(f);SBLOCK::QAR(B)+B(C),DCHECK
      • R(f);N_GUARD::PXB(k)=Q
      • R(f);SBLOCK::R1(A)
      • S(b);N_GUARD::QAB(B)
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