Problem Display
PID: 185320 (6n1/N5n1/8/pNp5/pk1p4/p1R2p2/P2p3Q/3K4 w - - 0 1)

Schonholzer, Andreas

Sachsische Zeitung, 2000

(First published on Sat Sep 16 2000)

6n1/N5n1/8/pNp5/pk1p4/p1R2p2/P2p3Q/3K4

#2

6 + 10


15391 Problemschach-Jahrbuch (2000) 2001

SOLUTION


  • SOUND
  • Sets
    • 1...c4
      • 2.Qd6#
  • Tries
    • 1.Rc2?
      • threat
        • 2.Qxd2#
      • 1...c4
        • 2.Qd6#
      • 1...f2!
    • 1.Qe5?
      • threat
        • 2.Qxc5#
      • 1...dxc3
        • 2.Qxc3#
      • 1...c4
        • 2.Sc6#
        • 2.Qd6#
      • 1...Se6!
    • 1.Qb8?
      • threat
        • 2.Sc6#
      • 1...dxc3
        • 2.Sd6#
      • 1...c4
        • 2.Qd6#
      • 1...Se7!
    • 1.Qxd2?
      • threat
        • 2.Rc1#
        • 2.Rc2#
      • 1...dxc3
        • 2.Qxc3#
      • 1...c4!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Rc4#
      • 1...Kxc3
        • 2.Qxd2#
      • 1...dxc3
        • 2.Sc6#
      • 1...c4
        • 2.Rxc4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(h);OGATEB::QAB(C)
  • Tries
    • Try
      • R(D);
      • Threat
        • QAB(C),XP(a)
      • Vars
        • P(h);OGATEB::QAB(C)
      • Refutation
        • P(c);
    • Try
      • Q(C);
      • Threat
        • QAB1(C),XP(h)
      • Vars
        • P(f);OGATE,XR(D)::QAB1(C),XP(f)
      • Refutation
        • S(i);
    • Try
      • Q(C);
      • Threat
        • S(F)
      • Vars
        • P(f);SBLOCK,XR(D)::QAR(C)+S(E)
        • P(h);OGATEB::QAB(C)
      • Refutation
        • S(j);
    • Try
      • Q(C);XP(a)
      • Threat
        • DUALS(2)
      • Vars
        • P(f);OGATE,P_SPINP(f),XR(D)::QAB1(C),XP(f)
      • Refutation
        • P(h);
  • Actual
    • S(E);
    • Threat
      • R1(D)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XR(D)::QAB1(C),XP(a)
      • P(f);SBLOCK,XR(D)::S(F)
      • P(h);::R1(D),XP(h)


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).