MESON Chess Problem Database

Problem Display
PID: 256920 (8/8/2N4b/N1Bp1q2/7r/2kp1n2/n3PR1P/K2Q4 w - - 0 1)

Syzonenko, Viktor N

The Macedonian Problemist, 2021

8/8/2N4b/N1Bp1q2/7r/2kp1n2/n3PR1P/K2Q4

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Qxd3#
    • 1...Qg4
      • 2.Qxd3#
    • 1...Qe6
      • 2.Qxd3#
    • 1...Qd7
      • 2.Qxd3#
    • 1...Qc8
      • 2.Qxd3#
    • 1...Qf4
      • 2.Qxd3#
    • 1...Qe5
      • 2.Qxd3#
    • 1...Qg5
      • 2.Qxd3#
    • 1...Qh5
      • 2.Qxd3#
    • 1...Qf6
      • 2.Qxd3#
    • 1...Qf7
      • 2.Qxd3#
    • 1...Qf8
      • 2.Qxd3#
    • 1...Re4
      • 2.Qxd3#
    • 1...Bd2
      • 2.Qb3#
    • 1...d2
      • 2.Qb3#
  • Tries
    • 1.e3?
      • threat
        • 2.Qb3#
      • 1...Sc1
        • 2.Qxc1#
      • 1...Sd2
        • 2.Qxd2#
      • 1...Sd4
        • 2.Qd2#
      • 1...Rb4!
  • Keys
    • 1.e4!
      • threat
        • 2.Qb3#
      • 1...Sc1
        • 2.Bb4#
      • 1...Sd2
        • 2.Bd4#
      • 1...Sd4
        • 2.Bxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 15
  • Sets
    • Q(g);N_GUARD::QAR1(B),XP(c)
    • R(e);S_CUTQ(g)::QAR1(B),XP(c)
    • B(h);SBLOCK::QAR1(B)
    • P(c);SBLOCK::QAR1(B)
  • Tries
    • Try
      • P(C);
      • Threat
        • QAR1(B)
      • Vars
        • S(a);N_GUARD::QAR2(B),XS(a)
        • S(d);N_GUARD::QAB1(B),XS(d)
        • S(d);N_GUARD::QAB1(B)
      • Refutation
        • R(e);
  • Actual
    • P(C);
    • Threat
      • QAR1(B)
    • Vars
      • S(a);N_GUARD::B(G)
      • S(d);N_GUARD::B(G)
      • S(d);N_GUARD::B(G),XS(d)
HTML5 logo

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).