MESON Chess Problem Database

Problem Display
PID: 155700 (8/3Q4/8/4K3/8/3R4/4kp2/3NN3 w - - 0 1)

Kuzmichev, Vladimir Viktorovich

Problemskak, 2015

8/3Q4/8/4K3/8/3R4/4kp2/3NN3

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...f1Q
      • 2.Re3#
    • 1...f1B
      • 2.Re3#
    • 1...f1R
      • 2.Re3#
  • Tries
    • 1.Sc3+?
      • 1...Kxe1
        • 2.Rd1#
      • 1...Kf1!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qxf2#
      • 1...Kxe1
        • 2.Qxf2#
      • 1...Kf1
        • 2.Qxf2#
      • 1...fxe1Q
        • 2.Qf3#
      • 1...fxe1S
        • 2.Sc3#
      • 1...fxe1B
        • 2.Qf3#
      • 1...fxe1R
        • 2.Sc3#
        • 2.Qf3#
      • 1...f1Q
        • 2.Qe4#
      • 1...f1S
        • 2.Qf2#
      • 1...f1B
        • 2.Qe4#
        • 2.Qf2#
      • 1...f1R
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • P(b);SBLOCK::R1(C)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(a);P-FLIGHT,XS(B)::R1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(E);
    • Threat
      • QAR1(E),XP(b)
    • Vars
      • K(a);P-FLIGHT,XS(B)::QAB1(E),XP(b)
      • K(a);P_SPINP(b),S_FLIGHT::QAR1(E),XP(b)
      • P(b);SBLOCK,XS(B)::QAB1(E)
      • P(b);SBLOCK,XS(B)::S(A)
      • P(b);SBLOCK::QAR2(E)
      • P(b);::QAR1(E)
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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).