MESON Chess Problem Database

Problem Display
PID: 110171 (4B3/8/2p3R1/3nP3/8/1PpP1P1N/2p1k1pP/2K3Qb w - - 0 1)

Labai, Zoltan

8th Comm., Szugyi MT, 1975

4B3/8/2p3R1/3nP3/8/1PpP1P1N/2p1k1pP/2K3Qb

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf3
      • 2.Qf2#
  • Tries
    • 1.Rxg2+?
      • 1...Kxd3
        • 2.Bg6#
      • 1...Kxf3
        • 2.Bh5#
        • 2.Qf2#
      • 1...Bxg2!
    • 1.Rd6?
      • 1...Kxd3
        • 2.Sf4#
      • 1...Kxf3
        • 2.Bh5#
      • 1...Se3
        • 2.Qf2#
      • 1...Sb4
        • 2.Qf2#
      • 1...Sf4
        • 2.Qf2#
      • 1...Sb6
        • 2.Qf2#
      • 1...Sf6
        • 2.Qf2#
      • 1...Sc7
        • 2.Qf2#
      • 1...Se7
        • 2.Qf2#
      • 1...c5!
    • 1.Qe1+?
      • 1...Kxd3
        • 2.Qe4#
      • 1...Kxf3
        • 2.Rg3#
        • 2.Qf2#
        • 2.Qe4#
      • 1...Kxe1!
  • Keys
    • 1.Bxc6!
      • 1...Kxd3
        • 2.Bb5#
      • 1...Kxf3
        • 2.Qf2#
      • 1...Se3
        • 2.Sf4#
      • 1...Sb4
        • 2.Sf4#
      • 1...Sf4
        • 2.Sxf4#
      • 1...Sb6
        • 2.Sf4#
      • 1...Sf6
        • 2.Sf4#
      • 1...Sc7
        • 2.Sf4#
      • 1...Se7
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT,XP(F)::QAR1(B)
  • Tries
    • Try
      • R(I);CHECK,XP(d)
      • Vars
        • K(c);S_FLIGHT,XP(E)::B(J)
      • Refutation
        • B(a);XR(I)
    • Try
      • R(I);
      • Vars
        • K(c);P_SPINS(f),S_FLIGHT,XP(E)::S(G)
        • K(c);OGATEB,S_FLIGHT,XP(F)::B(J)
        • S(f);::QAR1(B)
      • Refutation
        • P(g);
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT,XP(E)::QAB1(B)
      • Refutation
        • K(c);P-FLIGHT,XQ(B)
  • Actual
    • B(J);XP(g)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XP(E)::B(J)
      • K(c);P_SPINS(f),S_FLIGHT,XP(F)::QAR1(B)
      • S(f);N_GUARD::S(G)
      • S(f);N_GUARD::S(G),XS(f)
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