MESON Chess Problem Database

Problem Display
PID: 110182 (7n/2Kpp1p1/1pR2b1r/R2Bk1PQ/5NPp/2Pp3N/2qBp1n1/4r2b w - - 0 1)

Labai, Zoltan

3rd HM., SUV CSZTV, 1982

7n/2Kpp1p1/1pR2b1r/R2Bk1PQ/5NPp/2Pp3N/2qBp1n1/4r2b

#2

11 + 15

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Sxd3#
    • 1...Qb3
      • 2.Sxd3#
    • 1...Qa4
      • 2.Sxd3#
    • 1...Qc1
      • 2.Sxd3#
    • 1...Qa2
      • 2.Sxd3#
    • 1...Qb2
      • 2.Sxd3#
    • 1...Qxc3
      • 2.Bxc3#
    • 1...Bxg5
      • 2.Qxg5#
    • 1...Sxf4
      • 2.Bxf4#
  • Tries
    • 1.Rc4?
      • threat
        • 2.Re4#
      • 1...Qxc3
        • 2.Bxc3#
      • 1...Bxg5
        • 2.Qxg5#
      • 1...Sxf4
        • 2.Bxf4#
      • 1...Qa4
        • 2.Sxd3#
      • 1...Se3!
    • 1.gxf6+?
      • 1...g5
        • 2.Qxg5#
      • 1...Rxh5!
    • 1.gxh6+?
      • 1...Bg5
        • 2.Qxg5#
      • 1...g5!
    • 1.g6+?
      • 1...Bg5
        • 2.Qxg5#
      • 1...Rxh5!
  • Keys
    • 1.Kxd7!
      • threat
        • 2.Re6#
      • 1...Qxc3
        • 2.Bxc3#
      • 1...Bxg5
        • 2.Qxg5#
      • 1...Sxf4
        • 2.Bxf4#
      • 1...Qa4
        • 2.Sxd3#
      • 1...e6
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • Q(c);N_GUARD::S(D),XP(f)
    • Q(c);OGATE,P_PINR(J),XP(B)::B(A),XQ(c)
    • B(j);OGATE,P_SPINB(j),XP(H)::QAR2(I),XB(j)
    • S(e);OGATE,XS(D)::B(A),XS(e)
  • Tries
    • Try
      • R(J);
      • Threat
        • R1(J)
      • Vars
        • Q(c);OGATE,P_PINR(J),XP(B)::B(A),XQ(c)
        • B(j);OGATE,P_SPINB(j),XP(H)::QAR2(I),XB(j)
        • S(e);OGATE,XS(D)::B(A),XS(e)
        • Q(c);N_GUARD::S(D),XP(f)
      • Refutation
        • S(e);
    • Try
      • P(H);CHECK,XB(j)
      • Vars
        • P(n);P_SPINP(n)::QAR2(I),XP(n)
      • Refutation
        • R(k);XQ(I)
    • Try
      • P(H);CHECK,XR(k)
      • Vars
        • B(j);N_GUARD,P_SPINB(j)::QAR2(I),XB(j)
      • Refutation
        • P(n);P_SPINP(n)
    • Try
      • P(H);CHECK
      • Vars
        • B(j);N_GUARD,P_SPINB(j)::QAR2(I),XB(j)
      • Refutation
        • R(k);XQ(I)
  • Actual
    • K(K);P-FLIGHT,XP(l)
    • Threat
      • R1(J)
    • Vars
      • Q(c);OGATE,XP(B)::B(A),XQ(c)
      • B(j);OGATE,P_SPINB(j),XP(H)::QAR2(I),XB(j)
      • S(e);OGATE,XS(D)::B(A),XS(e)
      • Q(c);N_GUARD,P_PINR(J)::S(D),XP(f)
      • P(m);::R1(J),XP(m)
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