MESON Chess Problem Database

Problem Display
PID: 229896 (2K2QNb/8/2pp2P1/B3kBN1/1n5n/2P3P1/3R4/7q w - - 0 1)

Novikov, A

Zadachi i Etyudi, 2000

2K2QNb/8/2pp2P1/B3kBN1/1n5n/2P3P1/3R4/7q

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bf6
      • 2.Qxf6#
    • 1...Sg2
      • 2.Sf3#
    • 1...d5
      • 2.Bc7#
  • Tries
    • 1.Sh6?
      • threat
        • 2.Sg4#
        • 2.Qxd6#
        • 2.Qe7#
        • 2.Qxh8#
      • 1...Sxf5
        • 2.Sg4#
        • 2.Qxf5#
      • 1...Sxg6
        • 2.Sg4#
        • 2.Qxd6#
      • 1...Qf3
        • 2.Qxd6#
        • 2.Qe7#
        • 2.Qxh8#
      • 1...Qe4
        • 2.Qxd6#
        • 2.Qe7#
        • 2.Qxh8#
      • 1...Qd5
        • 2.Sg4#
        • 2.Qxh8#
      • 1...Qd1
        • 2.Qxd6#
        • 2.Qe7#
        • 2.Qxh8#
      • 1...Qh3
        • 2.Qxd6#
        • 2.Qe7#
        • 2.Qxh8#
      • 1...Bf6
        • 2.Sgf7#
        • 2.Qxd6#
      • 1...Bg7
        • 2.Sg4#
        • 2.Qxd6#
        • 2.Qe7#
        • 2.Qxg7#
      • 1...Sd5
        • 2.Sg4#
      • 1...d5
        • 2.Sg4#
        • 2.Bc7#
        • 2.Qe7#
      • 1...Sd3!
  • Keys
    • 1.Se7!
      • threat
        • 2.Qxh8#
      • 1...Sxf5
        • 2.Qxf5#
      • 1...Sxg6
        • 2.Sxg6#
      • 1...d5
        • 2.Bc7#
      • 1...Bf6
        • 2.Sf7#
      • 1...Bg7
        • 2.Qxg7#
      • 1...Sd5
        • 2.Sxc6#
      • 1...Sg2
        • 2.Sf3#
      • 1...Sf3
        • 2.Re2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(g);N_GUARD::QAB1(I),XB(g)
    • S(c);N_GUARD,S_CUTQ(a)::S(F)
    • P(f);OGATEB::B(D)
  • Tries
    • Try
      • S(J);
      • Threat
        • DUALS(4)
      • Vars
        • S(b);::S(J)
      • Refutation
        • S(b);
  • Actual
    • S(J);
    • Threat
      • QAB(I),XB(g)
    • Vars
      • S(c);OGATE,XB(E)::QAR1(I),XS(c)
      • S(c);XP(G)::S(J),XS(c)
      • P(f);OGATEB::B(D)
      • B(g);SBLOCK::S(F)
      • B(g);N_GUARD::QAB(I),XB(g)
      • S(b);N_GUARD,S_CUTQ(a)::S(J),XP(e)
      • S(c);N_GUARD,S_CUTQ(a)::S(F)
      • S(c);S_CUTQ(a)::R(A)
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