MESON Chess Problem Database

Problem Display
PID: 7764 (3Q1n2/3P2q1/R3P1pp/4nkB1/2BP4/1p4R1/b4N2/4K3 w - - 0 1)

Shire, David J

Schach-Aktiv, 1993

3Q1n2/3P2q1/R3P1pp/4nkB1/2BP4/1p4R1/b4N2/4K3

#2

10 + 8

4849 The Sushkov Theme 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Qf6
      • 2.Qxf6#
    • 1...Qxd7
      • 2.Qf6#
    • 1...Qh7
      • 2.Qf6#
    • 1...Qg8
      • 2.Qf6#
    • 1...Sd3+
      • 2.Bxd3#
    • 1...Sf3+
      • 2.Rxf3#
    • 1...Sxc4
      • 2.Rf3#
    • 1...Sg4
      • 2.Bd3#
      • 2.Rf3#
    • 1...Sc6
      • 2.Rf3#
    • 1...Sexd7
      • 2.Bd3#
      • 2.Rf3#
    • 1...Sf7
      • 2.Bd3#
      • 2.Rf3#
    • 1...Sxe6
      • 2.Bxe6#
    • 1...hxg5
      • 2.Qxg5#
  • Tries
    • 1.Qa5?
      • threat
        • 2.Bd3#
      • 1...hxg5
        • 2.Rf3#
      • 1...Bb1!
  • Keys
    • 1.Ra5!
      • threat
        • 2.Rf3#
      • 1...Sxe6
        • 2.Bd3#
      • 1...Qf6
        • 2.Qxf6#
      • 1...Qe7
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • Q(g);N_GUARD::QAR1(J),XQ(g)
    • Q(g);N_GUARD,XP(I)::QAR1(J)
    • Q(g);N_GUARD::QAR1(J)
    • S(c);CHECK,N_GUARD::B(D),XS(c)
    • S(c);CHECK,N_GUARD::R(C),XS(c)
    • S(c);N_GUARD,XB(D)::R(C)
    • S(c);N_GUARD::R(C)
    • S(h);OGATE,XP(H)::B(D),XS(h)
    • P(f);OGATE,XB(F)::QAR1(J),XP(f)
  • Tries
    • Try
      • Q(J);P_PINS(c)
      • Threat
        • B(D)
      • Vars
        • P(f);SBLOCK,XB(F)::R(C)
      • Refutation
        • B(a);
  • Actual
    • R(G);P_PINS(c)
    • Threat
      • R(C)
    • Vars
      • S(h);SBLOCK,XP(H)::B(D)
      • Q(g);N_GUARD::QAR1(J),XQ(g)
      • Q(g);N_GUARD::R1(G),XS(c)
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