MESON Chess Problem Database

Problem Display
PID: 35386 (1b6/1R6/3P4/2p1R1p1/3p1np1/3N1kB1/2pp3P/Q3n2K w - - 0 1)

Reitman, Mark

1st HM., Latvijas Zeme, 1995

1b6/1R6/3P4/2p1R1p1/3p1np1/3N1kB1/2pp3P/Q3n2K

#2

8 + 10

3657 Izbrannie Shakhmatnie Zadachi Marka Reitmana 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Seg2
      • 2.Qf1#
    • 1...d1S
      • 2.Sxe1#
    • 1...d1B
      • 2.Sxe1#
  • Tries
    • 1.Qxd4?
      • threat
        • 2.Re3#
        • 2.Qf2#
        • 2.Qe3#
        • 2.Qe4#
      • 1...Sexd3
        • 2.Re3#
        • 2.Qe3#
        • 2.Qe4#
      • 1...Sfxd3
        • 2.Re3#
        • 2.Qe3#
        • 2.Qe4#
        • 2.Qd5#
      • 1...d1S
        • 2.Sxe1#
        • 2.Qe4#
      • 1...Seg2
        • 2.Qf2#
        • 2.Qe4#
      • 1...Sfg2
        • 2.Qf2#
        • 2.Qe4#
        • 2.Qd5#
      • 1...Sh3
        • 2.Re3#
        • 2.Qe3#
        • 2.Qe4#
        • 2.Qd5#
      • 1...Sd5
        • 2.Qf2#
        • 2.Qe4#
        • 2.Qxd5#
      • 1...cxd4!
    • 1.Qa3?
      • threat
        • 2.Sxe1#
      • 1...Sfxd3
        • 2.Rf7#
      • 1...Seg2
        • 2.Se1#
      • 1...Sexd3!
  • Keys
    • 1.Rb3!
      • threat
        • 2.Sxe1#
      • 1...Sexd3
        • 2.Qf1#
      • 1...Sfxd3
        • 2.Qa8#
      • 1...Seg2
        • 2.Se1#
        • 2.Qf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • S(a);OGATE::QAR2(A)
    • P(c);N_GUARD::S(D),XS(a)
  • Tries
    • Try
      • Q(A);XP(e)
      • Threat
        • DUALS(4)
      • Refutation
        • P(h);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR(A)+S(D),DCHECK,XS(a)
      • Vars
        • S(f);OGATEB,P_SPINS(f),XS(D)::R(H)
        • S(a);::QAR(A)+S(D),DCHECK
      • Refutation
        • S(a);P_SPINS(a),XS(D)
  • Actual
    • R(H);
    • Threat
      • R(H)+S(D),DCHECK,XS(a)
    • Vars
      • S(a);OGATE,P_SPINS(a),XS(D)::QAR2(A)
      • S(f);N_GUARD,P_SPINS(f),XS(D)::QAB(A)
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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).