MESON Chess Problem Database

Problem Display
PID: 263229 (b1q1Q3/1n2N3/1Rp1Pr2/4k1P1/nB4P1/4P3/B1K1PN2/b7 w - - 0 1)

Lipton, Michael

3rd Prize, Prace, 1965

b1q1Q3/1n2N3/1Rp1Pr2/4k1P1/nB4P1/4P3/B1K1PN2/b7

#2

12 + 8

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe6
      • 2.Sxc6#
    • 1...Qb8
      • 2.Sxc6#
    • 1...Qd8
      • 2.Sxc6#
    • 1...Rf3
      • 2.Sg6#
    • 1...Rf4
      • 2.Sg6#
    • 1...Rf5
      • 2.Sg6#
    • 1...Rxe6
      • 2.Sg6#
    • 1...Rg6
      • 2.Sxg6#
    • 1...Rf7
      • 2.Sg6#
    • 1...Rf8
      • 2.Sg6#
  • Keys
    • 1.Qxc6!
      • threat
        • 2.Sd3#
      • 1...Qxc6+
        • 2.Sxc6#
      • 1...Rxf2
        • 2.Sg6#
      • 1...Qd7
        • 2.Qe4#
      • 1...Qd8
        • 2.Qe4#
      • 1...Sb2
        • 2.Bc3#
      • 1...Sac5
        • 2.Qd5#
      • 1...Sbc5
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 9
  • Sets
    • Q(h);N_GUARD,XP(J)::S(K),XP(d)
    • Q(h);N_GUARD::S(K),XP(d)
    • R(e);N_GUARD::S(K)
    • R(e);N_GUARD,XP(J)::S(K)
    • R(e);N_GUARD::S(K),XR(e)
  • Actual
    • Q(L);P_SPINQ(L),XP(d)
    • Threat
      • S(D)
    • Vars
      • Q(h);CHECK,XQ(L)::S(K),XQ(h)
      • R(e);N_GUARD,P_PINP(C),XS(D)::S(K)
      • Q(h);N_PINQ(L)::QAR1(L)
      • S(b);N_GUARD,S_CUTB(a)::B(F)
      • S(b);N_PINQ(L)::QAR1(L)
      • S(f);N_PINQ(L)::QAB1(L)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).