Problem Display
PID: 210240 (r6k/6p1/2p3K1/2PpB3/8/qB6/RQ6/8 w - - 0 1)

Runge, Fritz

Deutsche Schachblatter, 1941

r6k/6p1/2p3K1/2PpB3/8/qB6/RQ6/8

#2

6 + 6


15148 Sadier Collection 2020

SOLUTION


  • SOUND
  • Sets
    • 1...Qxb2
      • 2.Rxa8#
    • 1...Rg8
      • 2.Qh2#
    • 1...d4
      • 2.Bxg7#
      • 2.Qh2#
  • Keys
    • 1.Bc7!
      • threat
        • 2.Qxg7#
      • 1...Kg8
        • 2.Qxg7#
      • 1...Qxb2
        • 2.Rxa8#
      • 1...Rg8
        • 2.Qh2#
      • 1...d4
        • 2.Qh2#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(a);OGATE,XQ(B)::R(A),XR(e)
    • R(e);SBLOCK::QAR(B)
  • Actual
    • B(E);
    • Threat
      • QAB1(B),XP(d)
    • Vars
      • K(f);N_SPINP(d),P-FLIGHT,P_SPINP(b)::QAR1(B),XP(d)
      • Q(a);N_SPINP(d),OGATE,XQ(B)::R(A),XR(e)
      • R(e);SBLOCK::QAR(B)
      • P(b);N_SPINP(d)::QAR(B)


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).