MESON Chess Problem Database

Problem Display
PID: 169134 (8/1B3NK1/4p3/2p2k2/4n1n1/3NP1PP/5p2/5R2 w - - 0 1)

Kapustin, Fedor Mikhailovich

3rd Place, SuperProblem 006. TT, 2012

8/1B3NK1/4p3/2p2k2/4n1n1/3NP1PP/5p2/5R2

#2

8 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sg5
      • 2.Sd6#
    • 1...e5
      • 2.Bc8#
  • Tries
    • 1.h4?
      • 1...Sxg3
        • 2.Sd6#
      • 1...Sxe3
        • 2.Sh6#
      • 1...Sh2
        • 2.Sh6#
      • 1...Se5
        • 2.Sh6#
      • 1...Sgf6
        • 2.Sh6#
      • 1...Sh6
        • 2.Sxh6#
      • 1...e5
        • 2.Bc8#
      • 1...Sd2
        • 2.Sd6#
      • 1...Sc3
        • 2.Sd6#
      • 1...Sg5
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sef6
        • 2.Sd6#
      • 1...c4!
  • Keys
    • 1.Sxf2!
      • threat
        • 2.Bxe4#
        • 2.hxg4#
      • 1...Sexf2
        • 2.e4#
      • 1...Sxg3
        • 2.hxg4#
      • 1...Sgxf2
        • 2.g4#
      • 1...Sxe3
        • 2.Bxe4#
      • 1...e5
        • 2.Bc8#
      • 1...Sd2
        • 2.hxg4#
      • 1...Sc3
        • 2.Sxg4#
        • 2.hxg4#
      • 1...Sg5
        • 2.hxg4#
      • 1...Sd6
        • 2.Sxg4#
        • 2.hxg4#
      • 1...Sef6
        • 2.Sxg4#
      • 1...Sh2
        • 2.Bxe4#
      • 1...Se5
        • 2.Bxe4#
      • 1...Sgf6
        • 2.Sxe4#
      • 1...Sh6
        • 2.Sxe4#
        • 2.Bxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD,SBLOCK::S(G)
    • P(f);OGATEB::B(F)
  • Tries
    • Try
      • P(E);
      • Vars
        • S(b);N_GUARD,XP(D)::S(G)
        • S(c);N_GUARD,XP(C)::S(G)
        • S(c);N_GUARD::S(G)
        • S(c);N_GUARD::S(G),XS(c)
        • P(f);OGATEB::B(F)
        • S(b);N_GUARD::S(G)
        • S(b);N_GUARD::S(G),XS(b)
      • Refutation
        • P(d);
  • Actual
    • S(B);XP(a)
    • Threat
      • DUALS(2)
    • Vars
      • S(b);OGATE,P_SPINS(b),XS(B)::P(C)
      • S(b);XP(D)::P(E),XS(c)
      • S(c);OGATE,P_SPINS(c),XS(B)::P(D)
      • S(c);XP(C)::B(F),XS(b)
      • P(f);OGATEB::B(F)
      • S(b);::P(E),XS(c)
      • S(b);N_GUARD::R(A)+S(B),XS(c)
      • S(c);::B(F),XS(b)
      • S(c);N_GUARD::R(A)+S(B),XS(b)
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