Problem Display
PID: 134706 (b2R4/K1P5/2P3pq/8/Q4PB1/8/2PrP2b/2NknR2 w - - 0 1)

Morse, Christopher Jeremy

White, James R

Problem Observer, 1997

b2R4/K1P5/2P3pq/8/Q4PB1/8/2PrP2b/2NknR2

#2

11 + 7


SOLUTION


  • SOUND
  • Keys
    • 1.Sa2!
      • threat
        • 2.c3#
        • 2.c4#
        • 2.e3#
        • 2.e4#
      • 1...Bg1+
        • 2.e3#
      • 1...Qxf4
        • 2.c4#
      • 1...Rxd8
        • 2.cxd8Q#
        • 2.cxd8R#
      • 1...Bxc6
        • 2.e4#
      • 1...Rd3
        • 2.Rxd3#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Rd5
        • 2.Rxd5#
      • 1...Rd6
        • 2.Rxd6#
      • 1...Rd7
        • 2.Rxd7#
      • 1...Qg5
        • 2.c3#
        • 2.c4#
      • 1...Qh3
        • 2.c3#
      • 1...Qh4
        • 2.c3#
        • 2.c4#
      • 1...Qh5
        • 2.c3#
        • 2.c4#

There are these versions: 145091

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(A);
    • Threat
      • DUALS(4)
    • Vars
      • B(d);CHECK::B(G)+P(D)
      • Q(f);XP(F)::QAB(E)+P(C)
      • R(c);N_SPINR(c),OGATE,XR(K)::PXR(c)=Q
      • B(g);XP(H)::B(G)+P(D)
      • R(c);OGATEB::R(K),XR(c)
      • R(c);OGATEB,P_PINP(J)::R(K),XR(c)
      • Q(f);::QAB(E)+P(C)


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).