MESON Chess Problem Database

Problem Display
PID: 254371 (Q7/p3nKp1/4Np2/3p1k2/1b1P4/2N2P2/7p/8 w - - 0 1)

Vasilenko, Anatoly Grigorovich

Problemas, 2021

Q7/p3nKp1/4Np2/3p1k2/1b1P4/2N2P2/7p/8

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sc8
      • 2.Qxd5#
    • 1...Sg8
      • 2.Qxd5#
  • Tries
    • 1.Se4?
      • threat
        • 2.Sg3#
      • 1...dxe4
        • 2.Qxe4#
      • 1...Be1
        • 2.Sd6#
      • 1...Bd6
        • 2.Sxd6#
      • 1...h1S!
    • 1.Qb8?
      • threat
        • 2.Qf4#
      • 1...Bd6
        • 2.Qb1#
      • 1...g5
        • 2.Sg7#
      • 1...Sg6!
  • Keys
    • 1.Sxd5!
      • threat
        • 2.Se3#
      • 1...Sxd5
        • 2.Qxd5#
      • 1...Bd2
        • 2.Sxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(g);N_GUARD::QAR2(F),XP(c)
  • Tries
    • Try
      • S(A);
      • Threat
        • S(A)
      • Vars
        • P(c);OGATE,XS(A)::QAB1(F),XP(c)
        • B(b);N_GUARD::S(A)
        • B(b);N_GUARD::S(A),XB(b)
      • Refutation
        • P(a);
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • B(b);OGATE::QAB(F)
        • P(h);SBLOCK::S(D)
      • Refutation
        • S(g);
  • Actual
    • S(A);XP(c)
    • Threat
      • S(A)
    • Vars
      • S(g);OGATE,XS(A)::QAR2(F),XS(g)
      • B(b);N_GUARD::S(A),XS(g)
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