MESON Chess Problem Database

Problem Display
PID: 166441 (2nr4/5QN1/B6b/2pPP2p/2pPkPNn/8/1p2K1P1/6B1 w - - 0 1)

Labai, Zoltan

Prize, Sachove umeni (Ceskoslovensky sach), 2016

2nr4/5QN1/B6b/2pPP2p/2pPkPNn/8/1p2K1P1/6B1

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf4
      • 2.Sf6#
    • 1...Sf3
      • 2.gxf3#
    • 1...c3
      • 2.Bd3#
    • 1...cxd4
      • 2.Sf2#
  • Tries
    • 1.Sxh5?
      • threat
        • 2.Sg3#
      • 1...Sf5
        • 2.Sgf6#
      • 1...Bxf4!
    • 1.Be3?
      • threat
        • 2.Sf2#
        • 2.Sf6#
      • 1...Bxg7
        • 2.Sf2#
      • 1...Rd6
        • 2.Sf2#
      • 1...Bg5
        • 2.Sf2#
      • 1...hxg4!
    • 1.Qf5+?
      • 1...Kxd5
        • 2.Bb7#
      • 1...Sxf5!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sxc5#
      • 1...Kxd5
        • 2.Bb7#
      • 1...Rxd5
        • 2.Sf2#
      • 1...cxd4
        • 2.Sc5#
      • 1...Bf8
        • 2.Sg5#
      • 1...Sf5
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(g);SBLOCK,XP(E)::S(F)
    • S(d);OGATE::P(C),XS(d)
    • P(b);OGATE::B(I)
    • P(e);SBLOCK,XP(D)::S(F)
  • Tries
    • Try
      • S(K);XP(f)
      • Threat
        • S(K)
      • Vars
        • S(d);SBLOCK::S(F)
      • Refutation
        • B(g);XP(E)
    • Try
      • B(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(g);XS(K)::S(F)
        • R(i);::S(F)
        • B(g);::S(F)
      • Refutation
        • P(f);XS(F)
    • Try
      • Q(J);CHECK
      • Vars
        • K(c);S_FLIGHT,XP(G)::B(I)
      • Refutation
        • S(d);XQ(J)
  • Actual
    • S(K);
    • Threat
      • S(K),XP(e)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XP(G)::B(I)
      • R(i);SBLOCK,XP(G)::S(F)
      • P(e);XP(D)::S(K)
      • B(g);N_GUARD::S(K)
      • S(d);SBLOCK::S(F)
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