MESON Chess Problem Database

Problem Display
PID: 106226 (8/5n1R/Q2Pkbpr/3rN3/3pNnP1/1BRP1P2/7B/K7 w - - 0 1)

Labai, Zoltan

Praca, 1996

8/5n1R/Q2Pkbpr/3rN3/3pNnP1/1BRP1P2/7B/K7

#2

12 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe5
      • 2.Qc8#
    • 1...Se2
      • 2.Sc5#
      • 2.Qc8#
    • 1...Sg2
      • 2.Sc5#
      • 2.Qc8#
    • 1...Sxd3
      • 2.Qc8#
    • 1...Sh3
      • 2.Sc5#
      • 2.Qc8#
    • 1...Sh5
      • 2.Sc5#
      • 2.Qc8#
    • 1...Sxe5
      • 2.Sc5#
    • 1...Sxd6
      • 2.Qxd6#
  • Tries
    • 1.Sc6?
      • threat
        • 2.Qc8#
      • 1...Sxd6
        • 2.Sc5#
      • 1...Se5
        • 2.Sxd4#
      • 1...Kd7!
    • 1.Sxg6?
      • threat
        • 2.Sc5#
        • 2.Qc8#
      • 1...Kd7
        • 2.Qc8#
      • 1...Sxd3
        • 2.Sf8#
        • 2.Qc8#
      • 1...Sxd6
        • 2.Sc5#
        • 2.Qxd6#
      • 1...Bh4
        • 2.Qc8#
      • 1...Be5
        • 2.Sf8#
        • 2.Qc8#
      • 1...Bg5
        • 2.Qc8#
      • 1...Be7
        • 2.Qc8#
      • 1...Bg7
        • 2.Qc8#
      • 1...Bd8
        • 2.Qc8#
      • 1...Bh8
        • 2.Qc8#
      • 1...Se5
        • 2.Sc5#
        • 2.Sxf4#
        • 2.Sf8#
      • 1...Rxg6!
    • 1.Bxf4?
      • threat
        • 2.Sc5#
        • 2.Qc8#
      • 1...Bxe5
        • 2.Qc8#
      • 1...Sxe5
        • 2.Sc5#
      • 1...Sxd6
        • 2.Sc5#
        • 2.Qxd6#
      • 1...Bh4
        • 2.Qc8#
      • 1...Bg5
        • 2.Qc8#
      • 1...Be7
        • 2.Qc8#
      • 1...Bg7
        • 2.Qc8#
      • 1...Bd8
        • 2.Qc8#
      • 1...Bh8
        • 2.Qc8#
      • 1...Rh1+!
    • 1.d7+?
      • 1...Kxe5
        • 2.Qxf6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Ke7!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Sec5#
      • 1...Kxd7
        • 2.Qc8#
      • 1...Sxd3
        • 2.Sf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(e);SBLOCK,XS(I)::QAB(J)
    • S(b);XP(E)::QAB(J)
    • S(h);SBLOCK,XS(I)::S(G)
    • S(h);OGATE,P_SPINS(h),XP(K)::QAR1(J),XS(h)
  • Tries
    • Try
      • S(I);
      • Threat
        • QAB(J)
      • Vars
        • S(h);SBLOCK,XP(K)::S(G)
        • S(h);SBLOCK,S_CUTB(e)::S(I),XP(a)
      • Refutation
        • K(d);N_SPINR(c),P_SPINS(h),S_FLIGHT
    • Try
      • S(I);XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • K(d);N_SPINR(c),P_SPINS(h),S_FLIGHT::QAB1(J)
        • B(e);::QAB(J)
      • Refutation
        • R(g);XS(I)
    • Try
      • B(B);XS(b)
      • Threat
        • DUALS(2)
      • Vars
        • B(e);XS(I)::QAB(J)
        • S(h);XS(I)::S(G)
        • B(e);::QAB(J)
      • Refutation
        • R(g);CHECK
    • Try
      • P(K);CHECK
      • Vars
        • K(d);N_SPINR(c),OGATE,P-FLIGHT,P_SPINS(b),XS(I)::QAB1(J),XB(e)
        • S(h);N_GUARD,P_SPINS(h)::QAR1(J),XS(h)
      • Refutation
        • K(d);N_SPINR(c),P-FLIGHT,P_SPINS(h)
  • Actual
    • S(I);
    • Threat
      • S(G)
    • Vars
      • K(d);N_SPINR(c),OGATEB,P_SPINS(h),S_FLIGHT,XS(I)::QAB1(J)
      • S(b);XP(E)::S(I)
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