MESON Chess Problem Database

Problem Display
PID: 84366 (8/1B6/5p1b/1R3PpP/R4Nkp/8/5P2/6K1 w - - 0 1)

Brown, David Leo

Northwest Chess, 1975

8/1B6/5p1b/1R3PpP/R4Nkp/8/5P2/6K1

#2

8 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Se2+?
      • 1...Kh3
        • 2.Bg2#
        • 2.Rb3#
      • 1...Kxh5!
    • 1.Sg2+?
      • 1...Kh3
        • 2.Rb3#
      • 1...Kxh5!
    • 1.Sd3+?
      • 1...Kh3
        • 2.Bg2#
      • 1...Kxh5!
    • 1.Sh3+?
      • 1...Kxh3
        • 2.Bg2#
        • 2.Rb3#
      • 1...Kxh5!
    • 1.Se6+?
      • 1...Kh3
        • 2.Bg2#
        • 2.Rb3#
      • 1...Kxh5!
    • 1.Sg6+?
      • 1...Kh3
        • 2.Bg2#
        • 2.Rb3#
      • 1...Kxh5!
  • Keys
    • 1.Sd5+!
      • 1...Kf3
        • 2.Sc3#
      • 1...Kh3
        • 2.Rb3#
      • 1...Kxf5
        • 2.Sc7#
      • 1...Kxh5
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • S(D);CHECK
      • Vars
        • K(a);S_FLIGHT::R(E)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • S(D);CHECK
      • Vars
        • K(a);S_FLIGHT::B(H)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • S(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • S(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • S(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(G)
  • Actual
    • S(D);CHECK
    • Vars
      • K(a);S_FLIGHT::B(H)+S(D)
      • K(a);S_FLIGHT::R(E)
      • K(a);S_FLIGHT,XP(F)::R(E)+S(D)
      • K(a);S_FLIGHT,XP(G)::S(D),XP(d)
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