MESON Chess Problem Database

Problem Display
PID: 84668 (n3N3/3pP3/1ppP1PN1/1p1k1KbR/1Q1p1P2/1P6/B7/r7 w - - 0 1)

Fillery, William Edmund Frank

Canadian Chess Championship, 1982

n3N3/3pP3/1ppP1PN1/1p1k1KbR/1Q1p1P2/1P6/B7/r7

#2

11 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf4
      • 2.Sxf4#
    • 1...Bxf6
      • 2.Sxf6#
    • 1...Sc7
      • 2.Sxc7#
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qe5#
      • 1...Kc5
        • 2.b4#
      • 1...Rxe1
        • 2.b4#
      • 1...Bxf4
        • 2.Kxf4#
      • 1...Bxf6
        • 2.Kxf6#
      • 1...c5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(e);XP(D)::S(I),XB(e)
    • B(e);XP(H)::S(K),XB(e)
    • S(i);N_GUARD::S(K),XS(i)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • K(d);P-FLIGHT::P(B)
      • R(a);N_GUARD,XQ(C)::B(A)+P(B)
      • B(e);XP(D)::R(F)+K(E),XB(e)
      • B(e);XP(H)::R(F)+K(E),XB(e)
      • P(g);SBLOCK::QAB1(C)
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