MESON Chess Problem Database

Problem Display
PID: 273362 (3BK1B1/qp6/b1k1N3/8/2N1R2Q/8/2R5/2b5 w - - 0 1)

Eaton, Vincent Lanius

British Chess Magazine, 1934

3BK1B1/qp6/b1k1N3/8/2N1R2Q/8/2R5/2b5

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kb5
      • 2.Sd6#
  • Tries
    • 1.Sb6+?
      • 1...Kb5
        • 2.Rc5#
        • 2.Re5#
      • 1...Kd6
        • 2.Bc7#
        • 2.Be7#
        • 2.Qe7#
      • 1...Bc4!
    • 1.Sd4+?
      • 1...Kc5
        • 2.Be7#
        • 2.Qe7#
      • 1...Qxd4!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qd7#
      • 1...Kb5
        • 2.Sd6#
      • 1...Kd5
        • 2.Sd4#
      • 1...Qd4
        • 2.Sxd4#
      • 1...b5
        • 2.Sb6#
      • 1...b6
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);N_GUARD,S_CUTB(b),S_CUTQ(d),S_FLIGHT::S(B)
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • B(b);P_SPINB(b)
    • Try
      • S(E);CHECK
      • Refutation
        • Q(d);XS(E)
  • Actual
    • Q(D);
    • Threat
      • QAB1(D)
    • Vars
      • K(c);N_GUARD,S_CUTB(b),S_CUTQ(d),S_FLIGHT::S(B)
      • K(c);S_CUTQ(d),S_FLIGHT::B(H)+S(E)
      • Q(d);N_GUARD::S(E),XQ(d)
      • P(e);SBLOCK,S_CUTB(b)::R(A)+S(B)
      • P(e);S_CUTQ(d)::S(E)
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