MESON Chess Problem Database

Problem Display
PID: 143656 (7n/4R2K/1Q6/1R2N3/4k1P1/6Pb/1p1b1pr1/rq2nB2 w - - 0 1)

Evans, TC

Sunday Times, 1932

(First published on Sun Dec 11 1932)

7n/4R2K/1Q6/1R2N3/4k1P1/6Pb/1p1b1pr1/rq2nB2

#2

8 + 10

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Bd3#
  • Keys
    • 1.Qf6!
      • threat
        • 2.Sd3#
        • 2.Sf3#
        • 2.Sc4#
        • 2.Sc6#
        • 2.Sg6#
        • 2.Sd7#
        • 2.Sf7#
      • 1...Ke3+
        • 2.Sd3#
      • 1...Kd4+
        • 2.Sg6#
      • 1...Bxg4
        • 2.Sxg4#
      • 1...Qa2
        • 2.Sc4#
      • 1...Qd3
        • 2.Sxd3#
        • 2.Sf3#
        • 2.Sc4#
        • 2.Sc6#
        • 2.Sg6#
        • 2.Sd7#
        • 2.Sf7#
      • 1...Ra6
        • 2.Sc6#
      • 1...Ra7
        • 2.Sd7#
      • 1...Bc3
        • 2.Qf4#
      • 1...Bb4
        • 2.Qf4#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Sf3
        • 2.Sxf3#
      • 1...Sg6
        • 2.Sxg6#
      • 1...Sf7
        • 2.Sxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 1
  • Sets
    • S(c);N_GUARD,S_CUTQ(b)::B(A)
  • Actual
    • Q(F);
    • Threat
      • DUALS(7)
    • Vars
      • K(i);CHECK,P-FLIGHT::R(G)+S(E)
      • K(i);CHECK,P-FLIGHT::QAB(F)+S(E)
      • B(h);XP(C)::R(G)+S(E),XB(h)
      • Q(b);::R(G)+S(E)
      • R(a);::R(G)+S(E)
      • R(a);P_PINR(G)::R(G)+S(E)
      • B(e);N_GUARD::QAR1(F)
      • B(e);N_GUARD::QAR1(F),XB(e)
      • S(c);::R(G)+S(E),XS(c)
      • S(j);::R(G)+S(E),XS(j)
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