MESON Chess Problem Database

Problem Display
PID: 106475 (4B2K/rb4p1/3Q1P1B/4PkN1/4NP2/2nn2bP/2P1pPR1/q7 w - - 0 1)

Salai, Ladislav

Praca, 1954

4B2K/rb4p1/3Q1P1B/4PkN1/4NP2/2nn2bP/2P1pPR1/q7

#2

13 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf4
      • 2.Qe6#
    • 1...Sxf4
      • 2.Sxg3#
    • 1...Sxe5
      • 2.Qxe5#
    • 1...gxf6
      • 2.Qxf6#
  • Keys
    • 1.Se6!
      • threat
        • 2.Sxg3#
      • 1...Kxe4
        • 2.Qxd3#
      • 1...Bxf2
        • 2.Bg6#
      • 1...Bxf4
        • 2.Bg6#
      • 1...Bxe4
        • 2.Sd4#
      • 1...Sxe4
        • 2.Sxg7#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Bh2
        • 2.Bg6#
      • 1...Bh4
        • 2.Bg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • B(e);SBLOCK,XP(F)::QAB1(I)
    • S(d);SBLOCK,XP(F)::S(E),XB(e)
    • S(d);OGATE,XP(G)::QAR1(I),XS(d)
    • P(i);OGATE,XP(J)::QAR1(I),XP(i)
  • Actual
    • S(H);
    • Threat
      • S(E),XB(e)
    • Vars
      • K(f);OGATEB,S_FLIGHT,XS(E)::QAB1(I),XS(d)
      • B(e);XP(B)::B(L)
      • B(e);XP(F)::B(L)
      • B(h);SBLOCK,XS(E)::S(H)
      • S(c);SBLOCK,XS(E)::S(H),XP(i)
      • S(d);OGATE,XP(G)::QAR1(I),XS(d)
      • B(e);::B(L)
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