Problem Display
PID: 174682 (8/8/8/1p2p3/1K2B3/3R4/1kN5/8 w - - 0 1)

Volchek, Viktor Fedorovich

2nd Place, SuperProblem 190. TT, 2017

8/8/8/1p2p3/1K2B3/3R4/1kN5/8

#3

4 + 3


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Se3?
      • 1...Ka1
        • 2.Kb3
          • threat
            • 3.Rd1#
          • 2...Kb1
            • 3.Rd1#
      • 1...Kb1
        • 2.Kb3
          • threat
            • 3.Rd1#
          • 2...Ka1
            • 3.Rd1#
          • 2...Kc1
            • 3.Rd1#
      • 1...Kc1
        • 2.Kb3
          • threat
            • 3.Rd1#
          • 2...Kb1
            • 3.Rd1#
      • 1...Ka2!
    • 1.Sd4?
      • threat
        • 2.Sb3
          • threat
            • 3.Rd2#
          • 2...Kb1
            • 3.Rd2#
          • 2...Ka2
            • 3.Rd2#
          • 2...Kc2
            • 3.Rd2#
        • 2.Rd2+
          • 2...Ka1
            • 3.Sb3#
          • 2...Kc1
            • 3.Sb3#
      • 1...Ka1
        • 2.Kb3
          • threat
            • 3.Rd1#
          • 2...Kb1
            • 3.Rd1#
        • 2.Sb3+
          • 2...Kb1
            • 3.Rd2#
          • 2...Ka2
            • 3.Rd2#
          • 2...Kb2
            • 3.Rd2#
      • 1...Kb1
        • 2.Sb3
          • threat
            • 3.Rd2#
          • 2...Ka2
            • 3.Rd2#
          • 2...Kb2
            • 3.Rd2#
          • 2...Kc2
            • 3.Rd2#
        • 2.Rd2+
          • 2...Ka1
            • 3.Sb3#
          • 2...Kc1
            • 3.Sb3#
      • 1...Kc1
        • 2.Sb3+
          • 2...Kb1
            • 3.Rd2#
          • 2...Kb2
            • 3.Rd2#
          • 2...Kc2
            • 3.Rd2#
      • 1...Ka2
        • 2.Sb3
          • threat
            • 3.Rd2#
          • 2...Kb1
            • 3.Rd2#
          • 2...Kb2
            • 3.Rd2#
        • 2.Rd2+
          • 2...Ka1
            • 3.Sb3#
      • 1...exd4!
    • 1.Rd2?
      • threat
        • 2.Sd4+
          • 2...Ka1
            • 3.Sb3#
          • 2...Kc1
            • 3.Sb3#
      • 1...Kb1
        • 2.Sd4+
          • 2...Ka1
            • 3.Sb3#
          • 2...Kc1
            • 3.Sb3#
      • 1...Ka2
        • 2.Sd4+
          • 2...Ka1
            • 3.Sb3#
      • 1...Kc1!
  • Keys
    • 1.Sa1!
      • threat
        • 2.Sb3
          • threat
            • 3.Rd2#
          • 2...Kb1
            • 3.Rd2#
          • 2...Ka2
            • 3.Rd2#
          • 2...Kc2
            • 3.Rd2#
      • 1...Kxa1
        • 2.Kb3
          • threat
            • 3.Rd1#
          • 2...Kb1
            • 3.Rd1#
      • 1...Kb1
        • 2.Sb3
          • threat
            • 3.Rd2#
          • 2...Ka2
            • 3.Rd2#
          • 2...Kb2
            • 3.Rd2#
          • 2...Kc2
            • 3.Rd2#
      • 1...Kc1
        • 2.Sb3+
          • 2...Kb1
            • 3.Rd2#
          • 2...Kb2
            • 3.Rd2#
          • 2...Kc2
            • 3.Rd2#
      • 1...Ka2
        • 2.Sb3
          • threat
            • 3.Rd2#
          • 2...Kb1
            • 3.Rd2#
          • 2...Kb2
            • 3.Rd2#

FEATURES


NOT CLASSIFIED


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).