MESON Chess Problem Database

Problem Display
PID: 251212 (1K6/NpPp1Qb1/3kp3/2r5/1Pn2RP1/4Nn2/5BB1/2R5 w - - 0 1)

Smith, James Alfred John

British Chess Magazine, 1933

1K6/NpPp1Qb1/3kp3/2r5/1Pn2RP1/4Nn2/5BB1/2R5

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Sxc4#
    • 1...Re5
      • 2.c8S#
    • 1...Be5
      • 2.Qf8#
    • 1...Sfe5
      • 2.Sc8#
    • 1...Sce5
      • 2.bxc5#
    • 1...e5
      • 2.Sf5#
  • Tries
    • 1.Sxc4+?
      • 1...Kd5
        • 2.Bxf3#
        • 2.Qxd7#
      • 1...Rxc4!
  • Keys
    • 1.Bg3!
      • threat
        • 2.Rd4#
      • 1...Ke5
        • 2.Rfxc4#
      • 1...Rd5
        • 2.Sxc4#
      • 1...Re5
        • 2.c8S#
      • 1...Bd4
        • 2.Rxd4#
      • 1...Be5
        • 2.Qf8#
      • 1...Sd4
        • 2.Rxd4#
      • 1...Sfe5
        • 2.Sc8#
      • 1...Sce5
        • 2.bxc5#
      • 1...e5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD,SBLOCK::S(D),XS(b)
    • R(c);N_GUARD,SBLOCK::P=S
    • B(h);N_GUARD,SBLOCK::QAB(J)
    • S(a);SBLOCK::S(H)
    • S(b);SBLOCK::P(E),XR(c)
    • P(e);N_GUARD,SBLOCK,S_CUTR(c)::S(D)
  • Tries
    • Try
      • S(D);CHECK,XS(b)
      • Refutation
        • R(c);XS(D)
  • Actual
    • B(B);
    • Threat
      • B(B)+R(F),DCHECK
    • Vars
      • K(d);S_CUTB(h),S_CUTP(e),S_CUTR(c),S_CUTS(a),S_FLIGHT::B(B)+R(F),XS(b)
      • R(c);N_GUARD,SBLOCK::S(D),XS(b)
      • R(c);N_GUARD,SBLOCK::P=S
      • B(h);::B(B)+R(F),DCHECK,XB(h)
      • B(h);N_GUARD,SBLOCK::QAB(J)
      • S(a);::B(B)+R(F),DCHECK,XS(a)
      • S(a);SBLOCK::S(H)
      • S(b);SBLOCK::P(E),XR(c)
      • P(e);N_GUARD,SBLOCK,S_CUTR(c)::S(D)
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