MESON Chess Problem Database

Problem Display
PID: 193712 (2B1R3/5n1p/6br/4PN1n/2P1k3/4p1pN/2K3P1/B7 w - - 0 1)

Todd, William R

Pittsburgh Gazette-Times, 1915

2B1R3/5n1p/6br/4PN1n/2P1k3/4p1pN/2K3P1/B7

#2

9 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4
      • 2.Sxg3#
    • 1...Sf6
      • 2.Sxg3#
    • 1...Sg7
      • 2.Sxg3#
    • 1...Sxe5
      • 2.Sd6#
      • 2.Rxe5#
    • 1...Sg5
      • 2.Sd6#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sd8
      • 2.Sd6#
    • 1...Sh8
      • 2.Sd6#
  • Tries
    • 1.Be6?
      • 1...Bxf5
        • 2.Bd5#
      • 1...Sxe5
        • 2.Sd6#
      • 1...Sf4
        • 2.Sxg3#
      • 1...Sf6
        • 2.Sxg3#
      • 1...Sg7
        • 2.Sxg3#
      • 1...Sg5
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sd8
        • 2.Sd6#
      • 1...Sh8
        • 2.Sd6#
      • 1...e2!
  • Keys
    • 1.e6!
      • threat
        • 2.exf7#
      • 1...Kxf5
        • 2.exf7#
      • 1...Bxf5
        • 2.Bb7#
      • 1...Sf4
        • 2.Sxg3#
      • 1...Sf6
        • 2.Sxg3#
      • 1...Sg7
        • 2.Sxg3#
      • 1...Se5
        • 2.Sd6#
      • 1...Sg5
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sd8
        • 2.Sd6#
      • 1...Sh8
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD::S(G),XP(b)
    • S(g);N_GUARD::S(G)
    • S(g);N_GUARD::S(G),XS(g)
  • Tries
    • Try
      • B(H);
      • Vars
        • B(e);SBLOCK,XS(G)::B(H)
        • S(g);N_GUARD,XP(F)::S(G)
        • S(d);N_GUARD::S(G),XP(b)
        • S(g);N_GUARD::S(G)
        • S(g);N_GUARD::S(G),XS(g)
      • Refutation
        • P(a);
  • Actual
    • P(F);
    • Threat
      • R(I)+P(F),XS(g)
    • Vars
      • K(c);S_FLIGHT,XS(G)::B(H)+P(F),XS(g)
      • B(e);SBLOCK,XS(G)::B(H)
      • S(d);N_GUARD::S(G),XP(b)
      • S(g);N_GUARD::S(G)
      • S(g);N_GUARD::S(G),XS(g)
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