MESON Chess Problem Database

Problem Display
PID: 110215 (bN4B1/1N1Q4/3p3K/2ppp2p/P2k4/R7/3pP3/3rr3 w - - 0 1)

Labai, Zoltan

Czestochowa, 1989

bN4B1/1N1Q4/3p3K/2ppp2p/P2k4/R7/3pP3/3rr3

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sxd6?
      • threat
        • 2.Rd3#
      • 1...c4
        • 2.Qa7#
      • 1...e4
        • 2.Qg7#
      • 1...Rxe2!
    • 1.Sc6+?
      • 1...Kc4
        • 2.Sba5#
        • 2.Sxd6#
      • 1...Ke4!
    • 1.Rd3+?
      • 1...Kc4
        • 2.Qb5#
      • 1...Ke4!
    • 1.Qh3?
      • threat
        • 2.Qd3#
      • 1...Kc4
        • 2.Qc3#
      • 1...c4
        • 2.Qe3#
      • 1...e4
        • 2.Qc3#
      • 1...Ke4!
    • 1.Qb5?
      • threat
        • 2.Qd3#
      • 1...c4
        • 2.Qxd5#
      • 1...e4
        • 2.Sc6#
      • 1...Ke4!
    • 1.Qh7?
      • threat
        • 2.Qd3#
      • 1...Kc4
        • 2.Qe4#
      • 1...c4
        • 2.Sc6#
      • 1...e4!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qd3#
      • 1...Kc4
        • 2.Qe4#
      • 1...c4
        • 2.Sc6#
      • 1...e4
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);XP(i)
      • Threat
        • R1(B)
      • Vars
        • P(e);OGATEB::QAB(F)
        • P(g);OGATEB::QAB(F)
      • Refutation
        • R(b);XP(A)
    • Try
      • S(G);CHECK
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(d);P-FLIGHT,P_SPINP(f)::QAB1(F)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • K(d);P-FLIGHT,P_SPINP(f)::QAR1(F)
        • P(e);SBLOCK::QAB1(F)
        • P(g);SBLOCK::QAB1(F)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • P(e);OGATE::QAR1(F),XP(f)
        • P(g);SBLOCK::S(G)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • K(d);P-FLIGHT,P_SPINP(f)::QAR2(F)
        • P(e);SBLOCK::S(G)
      • Refutation
        • P(g);
  • Actual
    • Q(F);
    • Threat
      • QAR1(F)
    • Vars
      • K(d);P-FLIGHT,P_SPINP(f)::QAR2(F)
      • P(e);SBLOCK::S(G)
      • P(g);OGATE::QAR1(F),XP(f)
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