MESON Chess Problem Database

Problem Display
PID: 18996 (8/kP6/5R2/4n3/KN6/8/7B/8 w - - 0 1)

Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)

Golos Moskva, 1911

8/kP6/5R2/4n3/KN6/8/7B/8

#2

5 + 2

3296 Shakhmatny zadachi miniaturi 1987
3813 300 Sachmatu Uzdaviniu 1991
5424 Versunkene Schatze 1998
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.b8Q#
    • 1...Sf3
      • 2.b8Q#
    • 1...Sc4
      • 2.b8Q#
    • 1...Sg4
      • 2.b8Q#
    • 1...Sg6
      • 2.b8Q#
    • 1...Sf7
      • 2.b8Q#
  • Keys
    • 1.Rf7!
      • 1...Kb6
        • 2.Bg1#
      • 1...Kb8
        • 2.Sc6#
      • 1...Sxf7
        • 2.b8Q#
      • 1...Sd3
        • 2.b8Q#
        • 2.b8R#
      • 1...Sf3
        • 2.b8Q#
        • 2.b8R#
      • 1...Sc4
        • 2.b8Q#
        • 2.b8R#
      • 1...Sg4
        • 2.b8Q#
        • 2.b8R#
      • 1...Sc6
        • 2.b8Q#
      • 1...Sg6
        • 2.b8Q#
      • 1...Sd7
        • 2.b8Q#

This anticipates 21120(1916)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • S(a);::P=Q
  • Actual
    • R(D);
    • Vars
      • K(b);S_FLIGHT::B(A)
      • K(b);P_SPINS(a),S_FLIGHT::S(C)
      • S(a);XR(D)::P=Q
      • S(a);::P=Q
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