MESON Chess Problem Database

Problem Display
PID: 237486 (1B6/8/R4p1r/1pNpPpn1/3k4/1K1p4/3N1P2/b7 w - - 0 1)

Labai, Zoltan

3/4 HM., Pravda (Bratislava), 2017

(First published on Thu Sep 28 2017)

1B6/8/R4p1r/1pNpPpn1/3k4/1K1p4/3N1P2/b7

#2

7 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Ba7#
    • 1...Sf3
      • 2.Se6#
    • 1...Sh3
      • 2.Se6#
    • 1...Se4
      • 2.Se6#
    • 1...Se6
      • 2.Sxe6#
    • 1...Sf7
      • 2.Se6#
    • 1...Sh7
      • 2.Se6#
  • Tries
    • 1.Sf3+?
      • 1...Kxc5
        • 2.Bd6#
        • 2.Ba7#
      • 1...Sxf3!
    • 1.Sd7?
      • threat
        • 2.Ba7#
      • 1...fxe5
        • 2.Bxe5#
      • 1...Se4
        • 2.Sf3#
      • 1...Se6!
  • Keys
    • 1.Ba7!
      • threat
        • 2.Sd7#
      • 1...Kxe5
        • 2.Sxd3#
      • 1...fxe5
        • 2.Se6#
      • 1...Se4
        • 2.Sf3#
      • 1...Se6
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • K(c);OGATEB,S_FLIGHT,XS(D)::B(G)
    • S(g);N_GUARD::S(D)
    • S(g);N_GUARD::S(D),XS(g)
  • Tries
    • Try
      • S(A);CHECK
      • Refutation
        • S(g);XS(A)
    • Try
      • S(D);
      • Threat
        • B(G)
      • Vars
        • P(h);OGATE,XP(E)::B(G),XP(h)
        • S(g);N_GUARD,SBLOCK::S(A)
      • Refutation
        • S(g);
  • Actual
    • B(G);
    • Threat
      • B(G)+S(D)
    • Vars
      • K(c);S_FLIGHT,XP(E)::S(D),XP(b)
      • P(h);SBLOCK,XP(E)::B(G)+S(D),DCHECK
      • S(g);N_GUARD::S(A)
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