MESON Chess Problem Database

Problem Display
PID: 149093 (8/2N2K2/r3P3/1pbP1Pp1/b2k2Pn/4N3/1P1P1B1Q/1B3n2 w - - 0 1)

Sparke, Arthur M

British Chess Magazine, 1903

8/2N2K2/r3P3/1pbP1Pp1/b2k2Pn/4N3/1P1P1B1Q/1B3n2

#2

12 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe6
      • 2.Sxe6#
    • 1...Bd1
      • 2.Sxb5#
    • 1...Bb3
      • 2.Sxb5#
    • 1...Sg2
      • 2.Qh8#
  • Keys
    • 1.b3!
      • threat
        • 2.Sxf1#
      • 1...Rxe6
        • 2.Sxe6#
      • 1...Bxb3
        • 2.Sxb5#
      • 1...Sxd2
        • 2.Sd1#
      • 1...Sxh2
        • 2.Sc4#
      • 1...Sxe3
        • 2.Bxe3#
      • 1...Sxf5
        • 2.Sxf5#
      • 1...Sg3
        • 2.Sc4#
      • 1...Sg2
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(h);XP(J)::S(K),XR(h)
    • B(b);N_GUARD::S(K),XP(e)
    • S(d);OGATE::QAB(E)
  • Actual
    • P(B);
    • Threat
      • B(D)+S(F),XS(a)
    • Vars
      • R(h);XP(J)::S(K),XR(h)
      • B(b);N_GUARD,XP(B)::S(K),XP(e)
      • S(a);N_GUARD,XP(C)::B(D)+S(F)
      • S(a);N_GUARD,XQ(E)::B(D)+S(F)
      • S(a);OGATE,P_SPINS(a),XS(F)::B(D),XS(a)
      • S(d);XP(I)::B(D)+S(F),DCHECK,XS(d)
      • S(a);N_GUARD::B(D)+S(F)
      • S(d);OGATE::QAB(E)
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