MESON Chess Problem Database

Problem Display
PID: 153830 (7Q/7B/2n3n1/p2ppp2/K3k3/3NpN2/4P2R/2R5 w - - 0 1)

Steadman, CF

Cheltenham Examiner, 1891

(First published on Wed Jul 29 1891)

7Q/7B/2n3n1/p2ppp2/K3k3/3NpN2/4P2R/2R5

#2

8 + 8

15239 Valois Notebooks 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.Sg5#
    • 1...Sf4
      • 2.Sc5#
    • 1...Sh4
      • 2.Rxh4#
    • 1...Se7
      • 2.Rh4#
    • 1...Sf8
      • 2.Rh4#
    • 1...Sxh8
      • 2.Rh4#
    • 1...f4
      • 2.Bxg6#
  • Tries
    • 1.Rxc6?
      • 1...Sxh8
        • 2.Rh4#
      • 1...f4
        • 2.Bxg6#
        • 2.Qxe5#
      • 1...Sf4
        • 2.Sc5#
        • 2.Qxe5#
      • 1...Sh4
        • 2.Rxh4#
        • 2.Qxe5#
      • 1...Se7
        • 2.Rh4#
        • 2.Qxe5#
      • 1...Sf8
        • 2.Rh4#
        • 2.Qxe5#
      • 1...d4!
    • 1.Rh4+?
      • 1...Sf4
        • 2.Sc5#
      • 1...f4
        • 2.Bxg6#
      • 1...Sxh4!
  • Keys
    • 1.Qa8!
      • 1...d4
        • 2.Qxc6#
      • 1...f4
        • 2.Bxg6#
      • 1...Sb4
        • 2.Rc4#
      • 1...Sd4
        • 2.Sg5#
      • 1...Sa7
        • 2.Rc4#
      • 1...Sce7
        • 2.Rc4#
      • 1...Sb8
        • 2.Rc4#
      • 1...Sd8
        • 2.Rc4#
      • 1...Sf4
        • 2.Sc5#
      • 1...Sh4
        • 2.Rxh4#
      • 1...Sge7
        • 2.Rh4#
      • 1...Sf8
        • 2.Rh4#
      • 1...Sh8
        • 2.Rh4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(g);SBLOCK::S(E)
    • S(h);P_SPINP(f),SBLOCK::S(D)
    • S(h);N_GUARD,P_SPINP(f)::R(C),XS(h)
    • S(h);N_GUARD,P_SPINP(f)::R(C)
    • S(h);N_GUARD,P_SPINP(f),XQ(H)::R(C)
    • P(f);OGATEB,P_SPINS(h)::B(G),XS(h)
  • Tries
    • Try
      • R(A);XS(g)
      • Vars
        • S(h);N_GUARD,P_SPINP(f),XQ(H)::R(C)
      • Refutation
        • P(d);
    • Try
      • R(C);CHECK
      • Vars
        • S(h);P_SPINP(f),P_SPINS(h)::S(D)
        • P(f);P_SPINP(f),P_SPINS(h)::B(G),XS(h)
      • Refutation
        • S(h);P_SPINP(f),XR(C)
  • Actual
    • Q(H);
    • Vars
      • P(d);OGATEB,P_SPINS(g)::QAB(H),XS(g)
      • P(f);OGATEB,P_SPINS(h)::B(G),XS(h)
      • S(g);N_GUARD,P_SPINP(d)::R(A)
      • S(g);P_SPINP(d),SBLOCK::S(E)
      • S(h);P_SPINP(f),SBLOCK::S(D)
      • S(h);N_GUARD,P_SPINP(f)::R(C),XS(h)
      • S(h);N_GUARD,P_SPINP(f)::R(C)
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