MESON Chess Problem Database

Problem Display
PID: 232461 (2N1rb2/7Q/5p2/4rN2/2B1k1p1/2n5/2P1p1P1/1bB1K3 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Freie Presse, 2006

2N1rb2/7Q/5p2/4rN2/2B1k1p1/2n5/2P1p1P1/1bB1K3

#2

8 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re7
      • 2.Scd6#
    • 1...Bd6
      • 2.Scxd6#
    • 1...Bh6
      • 2.Scd6#
    • 1...Bg7
      • 2.Scd6#
    • 1...Sd5
      • 2.Bd3#
  • Tries
    • 1.Qb7+?
      • 1...Kxf5
        • 2.Qh7#
      • 1...Sd5
        • 2.Bd3#
      • 1...Rd5!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Qf4#
      • 1...Kxf5
        • 2.Qh7#
      • 1...Rxf5
        • 2.Qe3#
      • 1...Bxh6
        • 2.Scd6#
      • 1...Sd5
        • 2.Bd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(h);S_CUTB(i)::S(H)
    • B(i);N_GUARD::S(H),XB(i)
    • B(i);N_GUARD::S(H)
    • S(c);SBLOCK::B(E)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • K(d);OGATEB,S_FLIGHT,XS(F)::QAB(G)
        • S(c);P_SPINS(c)::B(E)
      • Refutation
        • R(f);P_SPINR(f)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(F)::QAB(G)
      • R(f);SBLOCK,XS(F)::QAR1(G)
      • B(i);N_GUARD,XQ(G)::S(H)
      • S(c);SBLOCK::B(E)
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