MESON Chess Problem Database

Problem Display
PID: 171258 (8/3p4/3K1p2/5p2/2p1kp2/8/3P1Q2/2N5 w - - 0 1)

Archakov, Vladimir Mikhailovich

4th Comm., Chervoni Girnik-75 JT, 1999

8/3p4/3K1p2/5p2/2p1kp2/8/3P1Q2/2N5

#2

4 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.d3#
    • 1...f3
      • 2.Qe3#
  • Tries
    • 1.Kc5?
      • threat
        • 2.Qe2#
      • 1...Ke5
        • 2.Qe1#
        • 2.Qe2#
      • 1...f3
        • 2.Qe3#
        • 2.Qd4#
      • 1...d6+!
    • 1.Qc5?
      • threat
        • 2.Qd5#
      • 1...f3
        • 2.Qe3#
        • 2.Qxc4#
      • 1...Kf3!
    • 1.Qg2+?
      • 1...Kd4
        • 2.Qd5#
      • 1...f3!
    • 1.Qf3+?
      • 1...Kd4
        • 2.Se2#
        • 2.Qd5#
        • 2.Qxf4#
      • 1...Kxf3!
  • Keys
    • 1.Qf1!
      • 1...Kd4
        • 2.Qxf4#
      • 1...f3
        • 2.Qxc4#
      • 1...c3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(a);N_GUARD::P(B)
    • P(c);N_GUARD::QAR1(C)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • QAR2(C)
      • Refutation
        • P(f);CHECK
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT::QAR1(C)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(b);S_FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(b);P-FLIGHT::QAR2(C),XP(c)
      • P(c);SBLOCK::QAR2(C),XP(a)
      • P(a);N_GUARD::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).