MESON Chess Problem Database

Problem Display
PID: 222599 (1Q6/2p5/p3N3/K1pkP3/6B1/4p3/1B2N3/8 w - - 0 1)

Lamy, CS

New Orleans Times-Democrat, 1884

1Q6/2p5/p3N3/K1pkP3/6B1/4p3/1B2N3/8

#2

7 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3+?
      • 1...Kc4
        • 2.Be2#
      • 1...Kc6
        • 2.Sd8#
        • 2.Qxc7#
      • 1...Kxe5!
    • 1.S2f4+?
      • 1...Kc4
        • 2.Be2#
      • 1...Kc6
        • 2.Sd8#
        • 2.Qxc7#
      • 1...Ke4!
    • 1.S6f4+?
      • 1...Kc4
        • 2.Be6#
        • 2.Qg8#
      • 1...Kc6
        • 2.Qa8#
      • 1...Ke4!
    • 1.Qb3+?
      • 1...Ke4
        • 2.Sg3#
        • 2.Sxc5#
        • 2.Sg5#
        • 2.Qc4#
      • 1...Kc6
        • 2.Sd8#
      • 1...c4!
    • 1.Qb5?
      • 1...Ke4
        • 2.Qc4#
      • 1...c6
        • 2.Qd3#
      • 1...axb5!
    • 1.Qd8+?
      • 1...Ke4
        • 2.Sg3#
        • 2.Sxc5#
        • 2.Sg5#
      • 1...Kc6
        • 2.Bf3#
      • 1...Kc4!
  • Keys
    • 1.Qg8!
      • 1...Kc4
        • 2.S6f4#
      • 1...Ke4
        • 2.Sxc5#
      • 1...Kc6
        • 2.Sd8#
      • 1...c4
        • 2.Bf3#
      • 1...c6
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(c);S_FLIGHT::B(C)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(e),XP(E)
    • Try
      • S(B);CHECK
      • Vars
        • K(c);S_FLIGHT::B(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • K(c);S_FLIGHT::S(F)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • Q(G);P_PINP(b)
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::QAR2(G)
        • P(e);SBLOCK::QAR2(G)
      • Refutation
        • P(d);N_SPINP(b),XQ(G)
    • Try
      • Q(G);CHECK
      • Vars
        • K(c);S_FLIGHT::B(C)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(G);
    • Vars
      • K(c);S_FLIGHT::QAB(G)+S(F)
      • K(c);S_FLIGHT::S(F),XP(b)
      • K(c);S_FLIGHT::S(F)
      • P(b);SBLOCK::B(C)
      • P(e);SBLOCK::QAB(G)+S(F)
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