MESON Chess Problem Database

Problem Display
PID: 201545 (8/8/8/8/3p2NR/3K1kqP/5B2/2Q5 w - - 0 1)

Tosco, Giovanni

L'Alfiere di Re, 1922

8/8/8/8/3p2NR/3K1kqP/5B2/2Q5

#2

6 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qf4
      • 2.Qh1#
  • Keys
    • 1.Qf1!
      • 1...Kf4+
        • 2.Be3#
      • 1...Qxf2
        • 2.Qxf2#
      • 1...Qxh4
        • 2.Bxh4#
      • 1...Qxh3
        • 2.Se5#
      • 1...Qxg4
        • 2.Be1#
      • 1...Qh2
        • 2.Sxh2#
      • 1...Qf4
        • 2.Be1#
        • 2.Qh1#
      • 1...Qe5
        • 2.Sxe5#
        • 2.Be1#
      • 1...Qd6
        • 2.Be1#
      • 1...Qc7
        • 2.Be1#
      • 1...Qb8
        • 2.Be1#
      • 1...Qg1
        • 2.Se5#
      • 1...Qg2
        • 2.Se5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 1
  • Sets
    • Q(b);N_GUARD,SBLOCK::QAB(A)
  • Actual
    • Q(A);
    • Vars
      • K(a);CHECK,P-FLIGHT::QAR(A)+B(B),DCHECK
      • Q(b);OGATE,P_SPINQ(b),XB(B)::QAR1(A),XQ(b)
      • Q(b);OGATE,XR(F)::QAR(A)+B(B),XQ(b)
      • Q(b);N_GUARD,XP(D)::S(E)
      • Q(b);N_GUARD,XS(E)::QAR(A)+B(B)
      • Q(b);N_GUARD::S(E),XQ(b)
      • Q(b);N_GUARD::QAR(A)+B(B)
      • Q(b);N_GUARD::S(E)
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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).