MESON Chess Problem Database

Problem Display
PID: 134629 (8/8/3n4/bR4R1/k5B1/3p4/K1P5/8 w - - 0 1)

Kwiatkowski, Vitaly I

StrateGems, 2009

8/8/3n4/bR4R1/k5B1/3p4/K1P5/8

#2

5 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.c3?
      • threat
        • 2.Bd1#
        • 2.Rxa5#
      • 1...Bxc3
        • 2.Bd1#
      • 1...Sxb5
        • 2.Bd1#
      • 1...Bb4
        • 2.Bd1#
        • 2.Rxb4#
      • 1...Bb6
        • 2.Bd1#
        • 2.Rb4#
      • 1...Bc7
        • 2.Bd1#
        • 2.Rb4#
      • 1...Bd8
        • 2.Bd1#
        • 2.Rb4#
      • 1...Sc4
        • 2.Bd1#
      • 1...Sb7
        • 2.Bd1#
      • 1...Sf5!
  • Keys
    • 1.Bd1!
      • threat
        • 2.cxd3#
        • 2.c3#
        • 2.c4#
      • 1...Sxb5
        • 2.c3#
      • 1...dxc2
        • 2.Bxc2#
      • 1...Sf5
        • 2.c4#
      • 1...Bc3
        • 2.cxd3#
      • 1...Sc4
        • 2.cxd3#
        • 2.c3#
      • 1...d2
        • 2.c3#
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);XP(B)::B(C)
        • S(d);XR(D)::B(C)
        • S(d);::B(C)
      • Refutation
        • S(d);
  • Actual
    • B(C);
    • Threat
      • DUALS(3)
    • Vars
      • S(d);XR(D)::B(C)+P(B)
      • P(a);OGATE,P_SPINP(a),XP(B)::B(C),XP(a)
      • S(d);::B(C)+P(B)
      • B(c);::B(C)+P(B),XP(a)
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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).