Problem Display
PID: 176687 (8/1Q1R3p/8/8/8/2p1K3/b1k1N3/8 w - - 0 1)

Keinz, Alois

Schach-Echo, 1954

8/1Q1R3p/8/8/8/2p1K3/b1k1N3/8

#3

4 + 4


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Bb1
      • 2.Rd1
        • threat
          • 3.Rc1#
          • 3.Qxb1#
        • 2...Kxd1
          • 3.Qxb1#
  • Tries
    • 1.Sd4+?
      • 1...Kd1
        • 2.Qh1#
      • 1...Kc1!
    • 1.Rd3?
      • threat
        • 2.Rxc3+
          • 2...Kd1
            • 3.Rc1#
            • 3.Qh1#
      • 1...Bb1
        • 2.Rd1
          • threat
            • 3.Rc1#
            • 3.Qxb1#
          • 2...Kxd1
            • 3.Qxb1#
        • 2.Rxc3+
          • 2...Kd1
            • 3.Rc1#
            • 3.Qh1#
            • 3.Qxb1#
      • 1...Bc4
        • 2.Rxc3+
          • 2...Kd1
            • 3.Rc1#
            • 3.Qh1#
            • 3.Qb1#
      • 1...Bd5
        • 2.Rxc3+
          • 2...Kd1
            • 3.Rc1#
            • 3.Qb1#
      • 1...Be6
        • 2.Rxc3+
          • 2...Kd1
            • 3.Rc1#
            • 3.Qh1#
            • 3.Qb1#
      • 1...Bf7
        • 2.Rxc3+
          • 2...Kd1
            • 3.Rc1#
            • 3.Qh1#
            • 3.Qb1#
      • 1...Bg8
        • 2.Rxc3+
          • 2...Kd1
            • 3.Rc1#
            • 3.Qh1#
            • 3.Qb1#
      • 1...Bb3!
    • 1.Qe4+?
      • 1...Kb3
        • 2.Rb7+
          • 2...Ka3
            • 3.Qb4#
      • 1...Kb2!
  • Keys
    • 1.Rd1!
      • threat
        • 2.Rc1#
      • 1...Kxd1
        • 2.Qxh7
          • 2...Ke1
            • 3.Qh1#
          • 2...Bb1
            • 3.Qxb1#
          • 2...Bb3
            • 3.Qb1#
          • 2...Bc4
            • 3.Qb1#
          • 2...Bd5
            • 3.Qb1#
          • 2...Be6
            • 3.Qb1#
          • 2...Bf7
            • 3.Qb1#
          • 2...Bg8
            • 3.Qb1#
          • 2...c2
            • 3.Qh1#
      • 1...Bb3
        • 2.Sd4+
          • 2...Kxd1
            • 3.Qh1#
          • 2...Kb2
            • 3.Qxb3#

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).