MESON Chess Problem Database

Problem Display
PID: 59308 (2n5/2R3p1/K3P3/2PkN3/3NpPq1/pP2B2Q/3R3r/4r2B w - - 0 1)

Aloni, Yoel

Hirschenson, Aaron

Variantim, 2004

2n5/2R3p1/K3P3/2PkN3/3NpPq1/pP2B2Q/3R3r/4r2B

#2

12 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qe2+
      • 2.Sxe2#
    • 1...Qf3
      • 2.Se2#
    • 1...Qh5
      • 2.Se2#
    • 1...Qxe6+
      • 2.Qxe6#
    • 1...Qg1
      • 2.Se2#
    • 1...Qg2
      • 2.Se2#
    • 1...Qg3
      • 2.Se2#
    • 1...Qh4
      • 2.Se2#
    • 1...Qg5
      • 2.Se2#
    • 1...Qg6
      • 2.Se2#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Sb4#
      • 1...Qxe6+
        • 2.Qxe6#
      • 1...Qe2
        • 2.Qf5#
      • 1...Qxf4!
  • Keys
    • 1.Sec6!
      • threat
        • 2.Sb4#
      • 1...Qe2+
        • 2.Sxe2#
      • 1...Kxc5
        • 2.Se2#
      • 1...Qxe6
        • 2.Se2#
      • 1...Qxf4
        • 2.Se2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(e);CHECK::R(B)+S(F),XQ(e)
    • Q(e);N_SPINP(d)::R(B)+S(F)
    • Q(e);::R(B)+S(F)
    • Q(e);CHECK,OGATE,XP(K)::QAB1(E),XQ(e)
    • Q(e);P_PINP(K)::R(B)+S(F)
  • Tries
    • Try
      • S(I);
      • Threat
        • S(I)
      • Vars
        • Q(e);CHECK,OGATE,XP(K)::QAB1(E),XQ(e)
        • Q(e);OGATE,P_PINS(I)::QAR2(E)
      • Refutation
        • Q(e);XP(G)
  • Actual
    • S(I);
    • Threat
      • S(I)
    • Vars
      • Q(e);CHECK::R(B)+S(F),XQ(e)
      • K(f);N_SPINP(d),P-FLIGHT,XP(H)::B(D)+S(F)
      • Q(e);P_PINS(I),XP(K)::R(B)+S(F)
      • Q(e);XP(G)::R(B)+S(F)
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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).