MESON Chess Problem Database

Problem Display
PID: 2480 (1K6/8/7N/3k2p1/2N3B1/1R2B3/8/8 w - - 0 1)

Loyd, Sam

New York Musical World, 1859

1K6/8/7N/3k2p1/2N3B1/1R2B3/8/8

#2

6 + 2

153 La Strategie 1867
1679 American Chess Nuts 1868
5206 Sam Loyd and His Chess Problems 1913
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Be6#
  • Tries
    • 1.Kb7?
      • 1...Kxc4
        • 2.Be6#
      • 1...Ke4!
    • 1.Kc7?
      • 1...Kxc4
        • 2.Be6#
      • 1...Ke4!
    • 1.Kc8?
      • 1...Kxc4
        • 2.Be6#
      • 1...Kc6
        • 2.Bf3#
      • 1...Ke4!
    • 1.Bd7?
      • 1...Kxc4
        • 2.Be6#
      • 1...Ke4
        • 2.Bc6#
      • 1...g4!
    • 1.Rd3+?
      • 1...Ke4
        • 2.Rd4#
      • 1...Kc6
        • 2.Bd7#
      • 1...Kxc4!
  • Keys
    • 1.Sg8!
      • 1...Kxc4
        • 2.Be6#
      • 1...Ke4
        • 2.Sf6#
      • 1...Kc6
        • 2.Se7#

This anticipates 192835(1984)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT,XS(C)::B(D)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT,XS(C)::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(F);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT,XS(C)::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT,XS(C)::B(D)
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT,XS(C)::B(D)
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • P(b);
    • Try
      • R(A);CHECK
      • Vars
        • K(a);S_FLIGHT::R1(A)
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
  • Actual
    • S(E);
    • Vars
      • K(a);S_FLIGHT,XS(C)::B(D)
      • K(a);S_FLIGHT::S(E)
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