MESON Chess Problem Database

Problem Display
PID: 236015 (8/b3BQp1/6p1/1K1pp3/1nNk4/2p2PN1/4P3/4q3 w - - 0 1)

Koci, Vladimir

Sachova skladba, 2020

8/b3BQp1/6p1/1K1pp3/1nNk4/2p2PN1/4P3/4q3

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Bxc5#
    • 1...Bb8
      • 2.Bc5#
    • 1...e4
      • 2.Qxg7#
    • 1...g5
      • 2.Sf5#
  • Tries
    • 1.Qxg6?
      • threat
        • 2.Sf5#
      • 1...Qxg3
        • 2.e3#
      • 1...Qxe2
        • 2.Sxe2#
      • 1...dxc4
        • 2.Qe4#
      • 1...Qb1
        • 2.e3#
      • 1...c2!
    • 1.Qf4+?
      • 1...e4
        • 2.Qe3#
        • 2.Qe5#
      • 1...exf4!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qxe5#
      • 1...Qxg3
        • 2.e3#
      • 1...Qxe2
        • 2.Sxe2#
      • 1...dxc4
        • 2.Qe4#
      • 1...gxf5
        • 2.Sxf5#
      • 1...Bb8
        • 2.Bc5#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sc6
        • 2.Qd3#
      • 1...e4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • B(h);N_GUARD::B(F),XB(h)
    • B(h);N_GUARD::B(F)
    • P(f);OGATEB::QAB(G),XP(i)
    • P(g);N_GUARD::S(C)
  • Tries
    • Try
      • Q(G);XP(g)
      • Threat
        • S(C)
      • Vars
        • Q(a);N_GUARD,XS(C)::P(A)
        • Q(a);P_PINS(D),XP(A)::S(C),XQ(a)
        • P(e);N_GUARD,XS(D)::QAR1(G)
        • Q(a);N_GUARD::P(A)
      • Refutation
        • P(b);
    • Try
      • Q(G);CHECK
      • Refutation
        • P(f);XQ(G)
  • Actual
    • Q(G);
    • Threat
      • QAB1(G),XP(f)
    • Vars
      • Q(a);N_GUARD,XS(C)::P(A)
      • Q(a);P_PINS(D),XP(A)::S(C),XQ(a)
      • P(e);N_GUARD,XS(D)::QAR1(G)
      • P(g);XQ(G)::S(C),XP(g)
      • B(h);N_GUARD::B(F)
      • S(c);N_GUARD::QAR1(G),XS(c)
      • S(c);N_GUARD::QAR1(G)
      • P(f);::QAB1(G)
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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).