MESON Chess Problem Database

Problem Display
PID: 99251 (6r1/p3p2b/6QP/K3B3/1p2P1p1/p1p1k1N1/3b1NP1/2r1nRn1 w - - 0 1)

Labai, Zoltan

Sakkelet, 1996

6r1/p3p2b/6QP/K3B3/1p2P1p1/p1p1k1N1/3b1NP1/2r1nRn1

#2

9 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Qg5#
    • 1...Rb8
      • 2.Qg5#
    • 1...Rc8
      • 2.Qg5#
    • 1...Rd8
      • 2.Qg5#
    • 1...Re8
      • 2.Qg5#
    • 1...Rh8
      • 2.Qg5#
    • 1...Sd3
      • 2.Sxg4#
    • 1...Se2
      • 2.Sf5#
    • 1...a6
      • 2.Qb6#
  • Tries
    • 1.Bd4+?
      • 1...Kf4
        • 2.Sh5#
      • 1...Kxd4!
  • Keys
    • 1.Qa6!
      • threat
        • 2.Qxa7#
      • 1...Sxg2
        • 2.Qd3#
      • 1...Rg6
        • 2.Sf5#
      • 1...Ra8
        • 2.Sxg4#
      • 1...Rb8
        • 2.Sxg4#
      • 1...Rc8
        • 2.Sxg4#
      • 1...Rd8
        • 2.Sxg4#
      • 1...Sc2
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sef3
        • 2.Qd3#
      • 1...Se2
        • 2.Qxe2#
      • 1...Sgf3
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 6
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • R(m);N_GUARD::QAB(H)
    • S(b);SBLOCK::S(B),XP(i)
    • S(c);SBLOCK::S(D)
    • P(j);N_GUARD::QAB(H)
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • K(g);S_FLIGHT::S(D)
      • Refutation
        • K(g);S_FLIGHT,XB(G)
  • Actual
    • Q(H);
    • Threat
      • QAB(H),XP(j)
    • Vars
      • S(b);N_GUARD,XP(C)::QAR1(H)
      • R(m);S_CUTB(l)::S(D)
      • R(m);N_GUARD::S(B),XP(i)
      • S(b);N_GUARD::QAR1(H)
      • S(b);N_GUARD::QAR1(H),XS(b)
      • S(c);N_GUARD::QAR1(H),XS(c)
      • S(c);N_GUARD::QAR1(H)
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