MESON Chess Problem Database

Problem Display
PID: 230278 (8/8/Q5K1/6Rp/7k/8/6Pn/6b1 w - - 0 1)

Shmatov, Vladimir Afanasievich

Zadachi i Etyudi, 2000

8/8/Q5K1/6Rp/7k/8/6Pn/6b1

#2

4 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Qe2?
      • threat
        • 2.Qxh5#
      • 1...Sf3
        • 2.Qe4#
      • 1...Sg4!
    • 1.Qd3?
      • threat
        • 2.Qg3#
        • 2.Qh3#
      • 1...Bf2
        • 2.Qh3#
      • 1...Sf1
        • 2.Qe4#
        • 2.Qh3#
      • 1...Sf3
        • 2.Qe4#
      • 1...Sg4
        • 2.Rxh5#
        • 2.Qh3#
      • 1...Be3!
    • 1.Qc8?
      • threat
        • 2.Qh3#
        • 2.g3#
      • 1...Bf2
        • 2.Qh3#
      • 1...Sf1
        • 2.Qh3#
      • 1...Sg4!
    • 1.Qe6?
      • threat
        • 2.Qh3#
        • 2.g3#
      • 1...Bf2
        • 2.Qh3#
      • 1...Sf1
        • 2.Qh3#
        • 2.Qe4#
      • 1...Sg4!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qg3#
      • 1...Bf2
        • 2.Qxh2#
      • 1...Sf1
        • 2.Qf4#
      • 1...Sg4
        • 2.Rxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAR1(C),XP(d)
      • Vars
        • S(b);N_GUARD::QAR(C)
      • Refutation
        • S(b);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR1(C)
        • S(b);N_GUARD::QAR(C)
      • Refutation
        • B(a);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR1(C)
        • S(b);::QAR1(C)
      • Refutation
        • S(b);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR1(C)
      • Refutation
        • S(b);
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • B(a);N_GUARD::QAR2(C),XS(b)
      • S(b);N_GUARD::QAR2(C)
      • S(b);SBLOCK::R1(B),XP(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).