MESON Chess Problem Database

Problem Display
PID: 131134 (8/8/8/4N3/1kB5/2N5/P4B2/R3K3 w Q - 0 1)

Sorokin, Evgeny Pavlovich

Canadian Chess Chat, 1981

8/8/8/4N3/1kB5/2N5/P4B2/R3K3

#2

7 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ka5
      • 2.Sc6#
  • Tries
    • 1.Kd2?
      • 1...Ka5
        • 2.Sc6#
      • 1...Ka3!
    • 1.Bd4?
      • 1...Ka5
        • 2.Sc6#
      • 1...Ka3!
    • 1.Rb1+?
      • 1...Ka3
        • 2.Bc5#
        • 2.Rb3#
      • 1...Ka5
        • 2.Sc6#
        • 2.Bb6#
      • 1...Kxc3!
    • 1.Rc1?
      • 1...Ka5
        • 2.Sc6#
      • 1...Ka3!
    • 1.a3+?
      • 1...Ka5
        • 2.Sc6#
      • 1...Kxc3!
    • 1.a4?
      • 1...Ka5
        • 2.Sc6#
      • 1...Kxc3!
  • Keys
    • 1.0-0-0!
      • 1...Ka3
        • 2.Bc5#
      • 1...Kxc3
        • 2.Be1#
      • 1...Ka5
        • 2.Sc6#

FEATURES

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