MESON Chess Problem Database

Problem Display
PID: 1100 (8/8/7K/5B2/7k/3p2b1/3PbR2/4Qn2 w - - 0 1)

Clark, DW

The Westminster Papers, 1873

8/8/7K/5B2/7k/3p2b1/3PbR2/4Qn2

#2

5 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Qe7#
    • 1...Bf3
      • 2.Qe7#
    • 1...Bh5
      • 2.Qe7#
    • 1...Bh2
      • 2.Rxh2#
      • 2.Rf4#
    • 1...Bf4+
      • 2.Rxf4#
    • 1...Be5
      • 2.Rh2#
      • 2.Rf4#
    • 1...Bd6
      • 2.Rh2#
      • 2.Rf4#
    • 1...Bc7
      • 2.Rh2#
      • 2.Rf4#
    • 1...Bb8
      • 2.Rh2#
      • 2.Rf4#
    • 1...Sxd2
      • 2.Rh2#
    • 1...Sh2
      • 2.Rxh2#
    • 1...Se3
      • 2.Rh2#
  • Keys
    • 1.Rf3!
      • 1...Bxf3
        • 2.Qe7#
      • 1...Bxe1
        • 2.Rh3#
      • 1...Sxd2
        • 2.Qxg3#
      • 1...Bd1
        • 2.Qe7#
      • 1...Bf2
        • 2.Rh3#
      • 1...Sh2
        • 2.Qxg3#
      • 1...Se3
        • 2.Qxg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(b);OGATE::QAB(A)
    • B(d);CHECK::QAB(A)+R(C),DCHECK,XB(d)
    • S(a);N_GUARD,XP(B)::R(C)
    • S(a);N_GUARD::R(C),XS(a)
    • S(a);N_GUARD::R(C)
  • Actual
    • R(C);P_PINB(d)
    • Vars
      • B(b);OGATE,XR(C)::QAB(A)
      • B(d);N_SPINB(d),OGATE,XQ(A)::R1(C)
      • S(a);N_GUARD,XP(B)::QAB1(A),XB(d)
      • B(b);OGATE::QAB(A)
      • B(d);OGATE::R1(C)
      • S(a);N_GUARD::QAB1(A),XB(d)
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