MESON Chess Problem Database

Problem Display
PID: 60311 (1Q6/5p2/4PP2/3k4/1P4N1/3N4/1PB5/R3K3 w Q - 0 1)

Loyd, Sam

Detroit Free Press, 1879

1Q6/5p2/4PP2/3k4/1P4N1/3N4/1PB5/R3K3

#2

10 + 2

5206 Sam Loyd and His Chess Problems 1913
14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Tries
    • 1.Sde5?
      • 1...Kd4
        • 2.Rd1#
        • 2.Qd6#
        • 2.Qd8#
        • 2.0-0-0#
      • 1...fxe6
        • 2.Rd1#
        • 2.Qd8#
        • 2.0-0-0#
      • 1...Kxe6!
    • 1.Se3+?
      • 1...Kd4
        • 2.Qf4#
        • 2.Qe5#
      • 1...Ke4
        • 2.Qf4#
      • 1...Kc6
        • 2.Se5#
        • 2.Ba4#
        • 2.Ra6#
        • 2.b5#
      • 1...Kxe6!
    • 1.Rd1?
      • 1...Kc4
        • 2.Sde5#
      • 1...Kd4
        • 2.Sde5#
      • 1...Kc6
        • 2.Sde5#
      • 1...Kxe6
        • 2.Sf4#
        • 2.Sc5#
      • 1...fxe6
        • 2.Sde5#
      • 1...Ke4!
    • 1.Ra5+?
      • 1...Kc4
        • 2.Qf4#
      • 1...Kd4
        • 2.Qf4#
      • 1...Ke4
        • 2.Qf4#
      • 1...Kc6
        • 2.Sde5#
        • 2.Sge5#
        • 2.Ba4#
        • 2.Rc5#
      • 1...Kxe6!
    • 1.Qe5+?
      • 1...Kc4
        • 2.Se3#
        • 2.Qc5#
        • 2.b3#
      • 1...Kc6!
  • Keys
    • 1.0-0-0!
      • 1...Kc4
        • 2.Sde5#
      • 1...Kd4
        • 2.Sde5#
      • 1...Ke4
        • 2.Se1#
      • 1...Kc6
        • 2.Sde5#
      • 1...Kxe6
        • 2.Sf4#
        • 2.Sc5#
      • 1...fxe6
        • 2.Sde5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • S(G);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(J)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::S(E)
        • K(a);P-FLIGHT::R(A)+S(E)
        • P(b);SBLOCK,XP(H)::R(A)+S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR(J)
        • K(a);P-FLIGHT::QAR2(J)
        • K(a);S_FLIGHT::QAR1(J)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • Q(J);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(B);0-0-0
    • Vars
      • K(a);S_FLIGHT::S(E)
      • K(a);P-FLIGHT::R(A)+S(E)
      • K(a);S_FLIGHT::B(D)+S(E)
      • P(b);SBLOCK,XP(H)::R(A)+S(E)
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