MESON Chess Problem Database

Problem Display
PID: 39973 (B2b4/1b1Pn3/4p3/pRN1kpPn/1q3N2/B1P1PP2/1pQ5/1K1R4 w - - 0 1)

Lindner, Laszlo

1st HM., British Chess Magazine, 1935/II

B2b4/1b1Pn3/4p3/pRN1kpPn/1q3N2/B1P1PP2/1pQ5/1K1R4

#2

13 + 10

4080 Mattbilder eines Lebens 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc3
      • 2.Scd3#
      • 2.Qxc3#
    • 1...Qb3
      • 2.Scd3#
    • 1...Qa4
      • 2.Scd3#
    • 1...Qc4
      • 2.Scd3#
    • 1...Qd4
      • 2.Scd3#
    • 1...Qe4
      • 2.Scd3#
    • 1...Qxf4
      • 2.Sd3#
    • 1...Sc6
      • 2.Sg6#
    • 1...Sg6
      • 2.Sxg6#
    • 1...Sc8
      • 2.Sg6#
    • 1...Sg8
      • 2.Sg6#
  • Tries
    • 1.Se4+?
      • 1...Qxb5
        • 2.Bd6#
      • 1...Bd5
        • 2.Sd3#
      • 1...Sd5
        • 2.Sd3#
        • 2.Sg6#
      • 1...Qc5!
    • 1.Sxb7+?
      • 1...Qxb5
        • 2.Bd6#
      • 1...Sd5
        • 2.Sd3#
        • 2.Sg6#
      • 1...Qc5!
  • Keys
    • 1.Qh2!
      • threat
        • 2.Sg6#
      • 1...Qe4+
        • 2.Scd3#
      • 1...Be4+
        • 2.Sfd3#
      • 1...Qxf4
        • 2.Sd3#
      • 1...Sxf4
        • 2.Qh8#
      • 1...Qd4
        • 2.Scd3#
      • 1...Sg3
        • 2.Qh8#
      • 1...Sg6
        • 2.Sxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • Q(b);::R(I)+S(J),DCHECK
    • Q(b);P_PINQ(C)::R(I)+S(J),DCHECK
    • Q(b);XS(H)::R(I)+S(J),DCHECK
    • S(i);N_GUARD::S(H)
    • S(i);N_GUARD::S(H),XS(i)
  • Tries
    • Try
      • S(J);CHECK
      • Vars
        • Q(b);OGATE,XR(I)::B(D)
        • B(h);P_SPINB(h)::S(H)
      • Refutation
        • Q(b);P_SPINQ(b)
    • Try
      • S(J);CHECK,XB(h)
      • Vars
        • Q(b);OGATE,XR(I)::B(D)
      • Refutation
        • Q(b);P_SPINQ(b)
  • Actual
    • Q(C);
    • Threat
      • QAB(C)+S(H),DCHECK
    • Vars
      • Q(b);CHECK::R(I)+S(J),DCHECK
      • B(h);CHECK::QAB(C)+S(H),DCHECK
      • Q(b);P_SPINQ(b),XS(H)::R(I)+S(J),DCHECK
      • S(f);OGATE,P_SPINS(f),XS(H)::QAB(C)
      • Q(b);::R(I)+S(J),DCHECK
      • S(f);OGATE::QAB(C)
      • S(i);::QAB(C)+S(H),DCHECK,XS(i)
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