MESON Chess Problem Database

Problem Display
PID: 175500 (8/1r2b1pQ/2R5/8/2Pk3p/1P1N4/1P3K2/8 w - - 0 1)

Teed, Frank Melville

American Chess Magazine, 1899

8/1r2b1pQ/2R5/8/2Pk3p/1P1N4/1P3K2/8

#2

7 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bg5
      • 2.Rd6#
    • 1...Bd6
      • 2.Rxd6#
    • 1...Bf6
      • 2.Rd6#
    • 1...Bd8
      • 2.Rd6#
  • Keys
    • 1.Rg6!
      • threat
        • 2.Rg4#
      • 1...Kxd3
        • 2.Rd6#
      • 1...Ke4
        • 2.Rg4#
      • 1...Bg5
        • 2.Rd6#
      • 1...Bd6
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(d);N_GUARD::R(F)
    • B(d);N_GUARD::R(F),XB(d)
  • Actual
    • R(F);
    • Threat
      • R(F)
    • Vars
      • K(a);P-FLIGHT,XS(D)::QAB(G)+R(F),DCHECK
      • K(a);P-FLIGHT::QAB(G)+R(F),DCHECK
      • B(d);N_GUARD::R(F)
      • B(d);N_GUARD::R(F),XB(d)
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