MESON Chess Problem Database

Problem Display
PID: 174490 (8/8/8/7R/1k3p2/b1N2K2/pP4Q1/rrN5 w - - 0 1)

Belchikov, Nikolai Ivanovich

Volchek, Viktor Fedorovich

2nd HM., Zvyazda 025. TT, 1999

8/8/8/7R/1k3p2/b1N2K2/pP4Q1/rrN5

#2

6 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qc2?
      • threat
        • 2.Qb3#
        • 2.Qa4#
        • 2.Qe4#
      • 1...Kc4
        • 2.Qe4#
      • 1...Rxc1
        • 2.Qa4#
      • 1...Bxb2
        • 2.Qb3#
      • 1...Rxb2!
    • 1.Qg8?
      • threat
        • 2.Sd3#
        • 2.Rb5#
        • 2.Qb3#
      • 1...Rxc1
        • 2.Rb5#
      • 1...Bxb2
        • 2.Qb3#
      • 1...Rxb2!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qxf4#
        • 2.Qb5#
        • 2.Qc5#
      • 1...Kc4
        • 2.Qxf4#
      • 1...Rxc1
        • 2.Qb5#
      • 1...Rxb2
        • 2.Qc5#
      • 1...Bxb2
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • K(e);P-FLIGHT::QAR2(C)
        • R(b);XS(A)::QAR1(C)
        • B(d);XP(B)::QAR1(C)
      • Refutation
        • R(b);XP(B)
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • R(b);XS(A)::R1(F)
        • B(d);XP(B)::QAR1(C)
      • Refutation
        • R(b);XP(B)
  • Actual
    • Q(C);
    • Threat
      • DUALS(3)
    • Vars
      • K(e);P-FLIGHT::QAR(C),XP(f)
      • R(b);XS(A)::QAR1(C)
      • R(b);XP(B)::QAB1(C)
      • B(d);XP(B)::QAB1(C)
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).