MESON Chess Problem Database

Problem Display
PID: 233201 (8/5N2/3pp1p1/6P1/2B1k2n/2P5/3PP1n1/1K3Q2 w - - 0 1)

Lindner, Erich

Freie Presse, 1969

8/5N2/3pp1p1/6P1/2B1k2n/2P5/3PP1n1/1K3Q2

#2

8 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Se3
      • 2.d3#
    • 1...Sf3
      • 2.Qxf3#
    • 1...Sf5
      • 2.Qf3#
    • 1...d5
      • 2.Bd3#
    • 1...e5
      • 2.Sxd6#
  • Tries
    • 1.Qf6?
      • threat
        • 2.Sxd6#
      • 1...d5
        • 2.Sd6#
        • 2.Bd3#
        • 2.Qe5#
      • 1...Sf5!
  • Keys
    • 1.e3!
      • 1...Sxe3
        • 2.d3#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sf3
        • 2.Qd3#
      • 1...Se1
        • 2.Qf4#
      • 1...Sf5
        • 2.Qxg2#
      • 1...d5
        • 2.Bd3#
      • 1...e5
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::P(C)
    • S(c);N_GUARD::QAB1(B),XS(c)
    • S(c);N_GUARD::QAB1(B)
    • P(d);SBLOCK::B(F)
    • P(e);SBLOCK::S(H),XP(d)
  • Tries
    • Try
      • Q(B);
      • Threat
        • S(H),XP(d)
      • Refutation
        • S(c);
  • Actual
    • P(D);
    • Vars
      • S(a);SBLOCK,XP(D)::P(C)
      • S(a);N_GUARD::QAR1(B),XS(a)
      • S(c);SBLOCK::QAB1(B)
      • S(a);N_GUARD::QAR1(B)
      • S(c);N_GUARD,SBLOCK::QAB(B),XS(a)
      • P(d);SBLOCK::B(F)
      • P(e);SBLOCK::S(H),XP(d)
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