MESON Chess Problem Database

Problem Display
PID: 23859 (6bK/rp2R1p1/2k5/1N1N1R1p/p5r1/4B1bQ/4Bp1q/8 w - - 0 1)

Shire, David J

Suomen Shakki, 1997

6bK/rp2R1p1/2k5/1N1N1R1p/p5r1/4B1bQ/4Bp1q/8

#2

8 + 11

4849 The Sushkov Theme 1999
133 The Problemist Supplement 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Sxb4#
    • 1...Rf4
      • 2.Rc7#
    • 1...Rg5
      • 2.Sb4#
    • 1...Rg6
      • 2.Sb4#
    • 1...Bf4
      • 2.Sb4#
    • 1...Bd6
      • 2.Sxa7#
  • Tries
    • 1.Bf4?
      • threat
        • 2.Rc7#
      • 1...Kc5
        • 2.Rc7#
      • 1...Bxf4
        • 2.Qc3#
      • 1...b6
        • 2.Sb4#
      • 1...Bxd5!
    • 1.Qxg3?
      • threat
        • 2.Sxa7#
        • 2.Rc7#
      • 1...Rxg3
        • 2.Sb4#
        • 2.Rc7#
      • 1...Rc4
        • 2.Sxa7#
      • 1...Rd4
        • 2.Rc7#
      • 1...b6
        • 2.Sxa7#
      • 1...Rf4
        • 2.Rc7#
      • 1...Ra5
        • 2.Rc7#
      • 1...Ra6
        • 2.Rc7#
      • 1...Ra8
        • 2.Rc7#
      • 1...Qxg3!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Sb4#
      • 1...Kxd5
        • 2.Bf3#
      • 1...Rxf4
        • 2.Qd7#
      • 1...Bxd5
        • 2.Rc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(e);N_GUARD::S(E),XR(e)
    • R(e);S_CUTB(c)::R1(G)
    • R(e);N_GUARD::S(E)
    • B(c);S_CUTR(e)::S(E)
    • B(c);SBLOCK::S(D),XR(h)
  • Tries
    • Try
      • B(B);
      • Threat
        • R1(G)
      • Vars
        • K(g);P-FLIGHT::R(G)
        • B(c);OGATE,XB(B)::QAR(C)
        • P(i);SBLOCK::S(E)
      • Refutation
        • B(k);XS(E)
    • Try
      • Q(C);XB(c)
      • Threat
        • DUALS(2)
      • Vars
        • R(e);::S(D),XR(h)
        • R(e);::R1(G)
        • P(i);::S(D),XR(h)
        • R(h);::R1(G)
      • Refutation
        • Q(b);XQ(C)
  • Actual
    • R(F);
    • Threat
      • S(E)
    • Vars
      • K(g);OGATEB,S_FLIGHT,XS(E)::B(A)
      • R(e);OGATE,XR(F)::QAB1(C)
      • B(k);SBLOCK,XS(E)::R1(G)
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