MESON Chess Problem Database

Problem Display
PID: 1119 (1B6/2R5/8/3nk1P1/3R4/4n3/B1PQ4/7K w - - 0 1)

Pierce, James

The Westminster Papers, 1873

1B6/2R5/8/3nk1P1/3R4/4n3/B1PQ4/7K

#2

8 + 3

3501 Chess Problems by Pierces 1873

SOLUTION

  • SOUND
  • Sets
    • 1...Sf5
      • 2.Re7#
    • 1...Sc3
      • 2.Rc5#
      • 2.Rf7#
    • 1...Sb4
      • 2.Rc5#
      • 2.Rf7#
    • 1...Sf4
      • 2.Rc5#
      • 2.Rf7#
    • 1...Sb6
      • 2.Rc5#
      • 2.Rf7#
    • 1...Sf6
      • 2.Rc5#
    • 1...Se7
      • 2.Rc5#
  • Tries
    • 1.Rf7+?
      • 1...Sc7
        • 2.Bxc7#
        • 2.Qxe3#
      • 1...Ke6!
  • Keys
    • 1.Qf2!
      • 1...Kxd4
        • 2.Rc4#
      • 1...Kd6
        • 2.Qf6#
      • 1...Ke6
        • 2.Qf6#
      • 1...Sxc2
        • 2.Re7#
      • 1...Sxc7
        • 2.Qf4#
        • 2.Qf6#
      • 1...Sd1
        • 2.Re7#
      • 1...Sf1
        • 2.Re7#
      • 1...Sg2
        • 2.Re7#
      • 1...Sc4
        • 2.Re7#
      • 1...Sg4
        • 2.Re7#
      • 1...Sf5
        • 2.Re7#
      • 1...Sc3
        • 2.Rcd7#
        • 2.Qf4#
        • 2.Qf6#
      • 1...Sb4
        • 2.Rcd7#
        • 2.Qf4#
        • 2.Qf6#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sb6
        • 2.Rcd7#
        • 2.Qf4#
        • 2.Qf6#
      • 1...Sf6
        • 2.Rcd7#
        • 2.Qf4#
        • 2.Qxf6#
      • 1...Se7
        • 2.Rcd7#
        • 2.Qf4#
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 2
  • Sets
    • S(a);SBLOCK::B(H)+R(G),DCHECK
    • S(b);::B(H)+R(G),DCHECK
  • Tries
    • Try
      • R(G);CHECK
      • Refutation
        • K(c);P-FLIGHT,P_SPINS(b)
  • Actual
    • Q(D);
    • Vars
      • K(c);P_SPINS(a),S_FLIGHT,XR(E)::R1(G)
      • K(c);P_SPINS(b),S_FLIGHT::QAR2(D)
      • K(c);P-FLIGHT,P_SPINS(b)::QAR1(D)
      • S(a);XP(C)::B(H)+R(G),DCHECK
      • S(a);::B(H)+R(G),DCHECK
      • S(b);N_GUARD::QAB1(D),XS(b)
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