MESON Chess Problem Database

Problem Display
PID: 107689 (8/3n2K1/3pN3/bP1k1p2/3N4/1bP5/1P4P1/4RB2 w - - 0 1)

Barry, Henry William

Checkmate, 1901

8/3n2K1/3pN3/bP1k1p2/3N4/1bP5/1P4P1/4RB2

#2

9 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.c4#
    • 1...Bc2
      • 2.c4#
    • 1...Ba4
      • 2.c4#
    • 1...Sc5
      • 2.Sf4#
  • Tries
    • 1.Sxb3?
      • threat
        • 2.Sf4#
        • 2.c4#
      • 1...Se5
        • 2.Sf4#
      • 1...Sb6
        • 2.Sf4#
        • 2.Sc7#
      • 1...f4
        • 2.Sxf4#
        • 2.c4#
      • 1...Bxc3+!
  • Keys
    • 1.Se2!
      • threat
        • 2.S2f4#
      • 1...Bxc3+
        • 2.Sxc3#
      • 1...Kc4
        • 2.S2f4#
      • 1...Ke4
        • 2.S2f4#
      • 1...Ke5
        • 2.S2f4#
      • 1...Kxe6
        • 2.Sf4#
      • 1...f4
        • 2.S2xf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD::P(E)
    • S(f);SBLOCK::S(H)
  • Tries
    • Try
      • S(F);XB(a)
      • Threat
        • DUALS(2)
      • Vars
        • S(f);::S(H)
      • Refutation
        • B(b);CHECK,XP(E)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • B(b);CHECK,XP(E)::S(F),XB(b)
      • K(c);S_FLIGHT::B(B)+S(F)
      • K(c);S_FLIGHT::R(A)+S(F)
      • K(c);P-FLIGHT::R(A)+S(F)
      • K(c);S_FLIGHT,XS(H)::R(A)+S(F),DCHECK
      • P(d);::S(F),XP(d)
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