MESON Chess Problem Database

Problem Display
PID: 254868 (8/4p1r1/4P1n1/R3N1bN/1pBpk1P1/3p3P/1rnqpP2/5bK1 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Probleemblad, 1946

8/4p1r1/4P1n1/R3N1bN/1pBpk1P1/3p3P/1rnqpP2/5bK1

#2

9 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1
      • 2.Bxd3#
    • 1...Qe1
      • 2.Bxd3#
    • 1...Qf4
      • 2.Bxd3#
    • 1...Se3
      • 2.f3#
    • 1...Sf4
      • 2.Sg3#
    • 1...Sxe5
      • 2.Bd5#
  • Keys
    • 1.Sf3!
      • threat
        • 2.Bd5#
      • 1...Kxf3
        • 2.Bd5#
      • 1...Se3
        • 2.Sxg5#
      • 1...Sf4
        • 2.Sxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • Q(d);N_GUARD::B(D),XP(f)
    • S(c);SBLOCK::P(B)
    • S(k);SBLOCK::S(H)
    • S(k);SBLOCK,XS(G)::B(D)
  • Actual
    • S(G);
    • Threat
      • B(D)
    • Vars
      • K(i);S_FLIGHT,XS(G)::B(D)
      • S(c);S_CUTQ(d)::S(G),XB(j)
      • S(k);S_CUTB(j)::S(G),XQ(d)
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