MESON Chess Problem Database

Problem Display
PID: 237485 (7B/4n1r1/2Q1R2b/1p6/1pR1N1Bq/1r1k3p/1Ppp1npP/3b2K1 w - - 0 1)

Labai, Zoltan

Kudesnik, 2017

7B/4n1r1/2Q1R2b/1p6/1pR1N1Bq/1r1k3p/1Ppp1npP/3b2K1

#2

9 + 14

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Sxf2#
    • 1...Qg5
      • 2.Sxf2#
    • 1...Qxg4
      • 2.Sxf2#
    • 1...Qh5
      • 2.Sxf2#
    • 1...Sxe4
      • 2.Qxe4#
  • Tries
    • 1.Qd5+?
      • 1...Ke3
        • 2.Sxf2#
        • 2.Qxd2#
      • 1...Sxd5!
  • Keys
    • 1.Qxb5!
      • threat
        • 2.Sc5#
      • 1...Ke3
        • 2.Sxf2#
      • 1...Sxe4
        • 2.Rcxe4#
      • 1...Qg5
        • 2.Sxf2#
      • 1...Qh5
        • 2.Sxf2#
      • 1...Rg5
        • 2.Rc3#
      • 1...Be3
        • 2.Rxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(g);P-FLIGHT::R(H)+S(E),XS(d)
    • Q(j);N_GUARD::S(E),XS(d)
    • Q(j);N_GUARD,XB(F)::S(E),XS(d)
    • S(d);OGATE,XS(E)::QAB1(G),XS(d)
  • Tries
    • Try
      • Q(G);CHECK
      • Refutation
        • S(m);XQ(G)
  • Actual
    • Q(G);XP(k)
    • Threat
      • S(E)
    • Vars
      • K(g);P-FLIGHT::R(H)+S(E),XS(d)
      • S(d);OGATE,XS(E)::QAB(G)+R(D),XS(d)
      • Q(j);N_GUARD::S(E),XS(d)
      • R(n);::QAB(G)+R(D),DCHECK
      • B(l);SBLOCK::QAB(G)+R(D),XP(i)
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