Problem Display
PID: 214939 (8/3K4/8/1Npk4/4RP2/2P5/4p3/8 w - - 0 1)

Curbera, Julio

SEPA, 1942

8/3K4/8/1Npk4/4RP2/2P5/4p3/8

#2

5 + 3


SOLUTION


  • SOUND
  • Sets
    • 1...c4
      • 2.Re5#
  • Tries
    • 1.Rxe2?
      • 1...c4
        • 2.Re5#
      • 1...Kc4!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Re5#
        • 2.c4#
      • 1...c4
        • 2.Re5#
      • 1...e1Q
        • 2.c4#
      • 1...e1R
        • 2.c4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::R1(B)
  • Tries
    • Try
      • R(B);XP(a)
      • Vars
        • P(b);SBLOCK::R1(B)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(D);
    • Threat
      • DUALS(2)
    • Vars
      • P(b);::R1(B)
      • P(a);::P(A)


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).