MESON Chess Problem Database

Problem Display
PID: 232479 (N6n/3R1N1Q/KP5b/B4R2/1pk1p1P1/3b4/1P6/1n1B2q1 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Freie Presse, 2010

N6n/3R1N1Q/KP5b/B4R2/1pk1p1P1/3b4/1P6/1n1B2q1

#2

11 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb6+
      • 2.Sxb6#
    • 1...Sc3
      • 2.b3#
    • 1...Sxf7
      • 2.Qxf7#
  • Keys
    • 1.Qg8!
      • threat
        • 2.Sxh8#
      • 1...Qxb6+
        • 2.Sxb6#
      • 1...Qxg4
        • 2.Qc8#
      • 1...Sxf7
        • 2.Qxf7#
      • 1...Qc5
        • 2.Se5#
      • 1...Qd4
        • 2.Sd6#
      • 1...Sc3
        • 2.b3#
      • 1...Sg6
        • 2.Sg5#
        • 2.Sxh6#
        • 2.Sd8#
        • 2.Sh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(b);CHECK,XP(G)::S(K),XQ(b)
    • S(a);SBLOCK::P(B)
    • S(h);OGATE,XS(I)::QAB(J),XS(h)
  • Actual
    • Q(J);
    • Threat
      • QAB(J)+S(I),XS(h)
    • Vars
      • Q(b);CHECK,XP(G)::S(K),XQ(b)
      • Q(b);N_GUARD,XP(C)::QAR(J)
      • S(h);OGATE,P_SPINS(h),XS(I)::QAB(J),XS(h)
      • Q(b);SBLOCK::QAB(J)+S(I),DCHECK
      • S(a);SBLOCK::P(B)
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