MESON Chess Problem Database

Problem Display
PID: 134587 (2bb1nQ1/2p5/5p2/2N2kBK/2Nr1p2/8/4R3/8 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Sachsische Zeitung, 1999

2bb1nQ1/2p5/5p2/2N2kBK/2Nr1p2/8/4R3/8

#2

6 + 8

14503 Problemschach-Jahrbuch (1999) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Qd5#
    • 1...Rd5
      • 2.Qxd5#
    • 1...Se6
      • 2.Qh7#
      • 2.Qg6#
    • 1...Sg6
      • 2.Qxg6#
    • 1...Sd7
      • 2.Qe6#
      • 2.Qh7#
      • 2.Qg6#
    • 1...Sh7
      • 2.Qxh7#
      • 2.Qg6#
  • Tries
    • 1.Bxf4?
      • threat
        • 2.Qg4#
      • 1...Kxf4
        • 2.Rf2#
      • 1...Rxf4
        • 2.Qd5#
      • 1...Sg6!
    • 1.Bh4?
      • threat
        • 2.Qg4#
      • 1...Sg6
        • 2.Qxg6#
      • 1...f3!
    • 1.Bh6?
      • threat
        • 2.Qg4#
      • 1...Sg6
        • 2.Qxg6#
      • 1...f3!
    • 1.Qf7?
      • threat
        • 2.Re5#
      • 1...Rxc4
        • 2.Qd5#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Sg6
        • 2.Qxg6#
      • 1...Sd7
        • 2.Qe6#
        • 2.Qg6#
        • 2.Qh7#
      • 1...Re4!
    • 1.Qh7+?
      • 1...Sg6
        • 2.Qxg6#
      • 1...Sxh7!
  • Keys
    • 1.Bxf6!
      • threat
        • 2.Qg5#
      • 1...Kxf6
        • 2.Qxf8#
      • 1...Bxf6
        • 2.Qg4#
      • 1...Se6
        • 2.Qg6#
      • 1...Sg6
        • 2.Qxg6#
      • 1...Sh7
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(a);N_GUARD,XS(B)::QAR2(F)
    • R(a);N_GUARD::QAR2(F),XR(a)
    • S(h);N_GUARD::QAB1(F),XS(h)
  • Tries
    • Try
      • B(D);XP(b)
      • Threat
        • QAB1(F)
      • Vars
        • K(c);OGATEB,P-FLIGHT,XB(D)::R(A)
        • R(a);N_GUARD,SBLOCK,XB(D)::QAR2(F)
      • Refutation
        • S(h);
    • Try
      • B(D);
      • Threat
        • QAB1(F)
      • Vars
        • S(h);N_GUARD::QAB1(F),XS(h)
      • Refutation
        • P(b);
    • Try
      • B(D);
      • Threat
        • QAB1(F)
      • Vars
        • S(h);N_GUARD::QAB1(F),XS(h)
      • Refutation
        • P(b);
    • Try
      • Q(F);P_PINP(d)
      • Threat
        • R1(A)
      • Vars
        • R(a);N_GUARD,XS(B)::QAR2(F)
        • R(a);N_GUARD::QAR2(F),XR(a)
        • S(h);N_GUARD::QAB1(F),XS(h)
      • Refutation
        • R(a);
    • Try
      • Q(F);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAB1(F),XS(h)
      • Refutation
        • S(h);XQ(F)
  • Actual
    • B(D);XP(d)
    • Threat
      • QAR1(F)
    • Vars
      • K(c);OGATEB,P-FLIGHT,XB(D)::QAR2(F),XS(h)
      • B(g);SBLOCK,XB(D)::QAB1(F)
      • S(h);N_GUARD::QAB1(F)
      • S(h);N_GUARD::QAB1(F),XS(h)
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