MESON Chess Problem Database

Problem Display
PID: 201710 (8/q2n1BK1/7B/3PP2R/4k1p1/1n1p1N2/1p6/7Q w - - 0 1)

Vesz, Tibor

Bekes Sakk, 1922

8/q2n1BK1/7B/3PP2R/4k1p1/1n1p1N2/1p6/7Q

#2

8 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Se1#
      • 2.Sg1#
      • 2.Sd2#
      • 2.Sh2#
      • 2.Sh4#
    • 1...Sd4
      • 2.Sd2#
    • 1...Sxe5
      • 2.Rxe5#
    • 1...gxf3
      • 2.Qh4#
  • Tries
    • 1.Qe1+?
      • 1...Qe3
        • 2.Qxe3#
      • 1...Kxf3!
  • Keys
    • 1.e6!
      • threat
        • 2.Bg6#
      • 1...Qd4+
        • 2.Se5#
      • 1...gxf3
        • 2.Qh4#
      • 1...Se5
        • 2.Rxe5#
      • 1...Sd4
        • 2.Sd2#
      • 1...Sdc5
        • 2.Re5#
      • 1...Sb6
        • 2.Re5#
      • 1...Sf6
        • 2.Re5#
      • 1...Sb8
        • 2.Re5#
      • 1...Sf8
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::QAB(A)+S(B),DCHECK
    • S(g);OGATE,P_PINB(G),XP(D)::R1(E),XS(g)
    • P(e);OGATEB,P_SPINP(e),SBLOCK,XS(B)::QAR(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • Q(f);N_GUARD,P_SPINQ(f)::QAR1(A),XQ(f)
      • Refutation
        • K(d);S_FLIGHT,XS(B)
  • Actual
    • P(D);
    • Threat
      • B(G)
    • Vars
      • Q(f);CHECK,SBLOCK::QAB(A)+S(B)
      • P(e);OGATEB,P_SPINP(e),SBLOCK,XS(B)::QAR(A)
      • S(g);N_GUARD,P_PINB(G)::R1(E),XS(g)
      • S(b);SBLOCK::QAB(A)+S(B),DCHECK
      • S(g);N_GUARD,P_PINB(G)::R1(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).