Problem Display
PID: 152287 (B1R5/pNn3r1/2k1Pp2/B2p1Q1q/PKp1P3/3N4/4Prbb/1R6 w - - 0 1)

Henriksen, Thorleif Cammillo

Good Companions (October), 1915

B1R5/pNn3r1/2k1Pp2/B2p1Q1q/PKp1P3/3N4/4Prbb/1R6

#2

12 + 11


SOLUTION


  • SOUND
  • Sets
    • 1...Qxe2
      • 2.Qxd5#
    • 1...Qf3
      • 2.Qxd5#
    • 1...Qg4
      • 2.Qxd5#
    • 1...Qg6
      • 2.Qxd5#
    • 1...Qf7
      • 2.Qxd5#
    • 1...Qe8
      • 2.Qxd5#
    • 1...Qh3
      • 2.Qxd5#
    • 1...Qh4
      • 2.Qxd5#
    • 1...Qh6
      • 2.Qxd5#
    • 1...Qh7
      • 2.Qxd5#
    • 1...Qh8
      • 2.Qxd5#
    • 1...Rf3
      • 2.exd5#
    • 1...Rg3
      • 2.Rxc7#
    • 1...Bf1
      • 2.exd5#
    • 1...Bh3
      • 2.exd5#
    • 1...Bd6+
      • 2.Sbc5#
    • 1...cxd3
      • 2.Rc1#
  • Keys
    • 1.Ka3!
      • threat
        • 2.Sb4#
      • 1...Bd6+
        • 2.Sbc5#
      • 1...cxd3
        • 2.Rc1#
      • 1...Qf3
        • 2.Qxd5#
      • 1...Qh3
        • 2.Qxd5#
      • 1...Rf3
        • 2.exd5#
      • 1...Rg3
        • 2.Rxc7#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 11
  • Sets
    • Q(f);N_GUARD,XP(B)::QAB1(H),XP(e)
    • Q(f);N_GUARD::QAB1(H),XP(e)
    • R(a);S_CUTB(b)::P(F),XP(e)
    • R(k);N_GUARD,S_CUTB(c)::R1(L),XS(j)
    • B(b);N_GUARD::P(F),XP(e)
    • B(c);CHECK,SBLOCK::B(K)+S(J)
    • P(d);OGATEB,XS(C)::R(A)
  • Actual
    • K(E);S_FLIGHT
    • Threat
      • S(C)
    • Vars
      • B(c);CHECK,SBLOCK::B(K)+S(J)
      • P(d);OGATEB,XS(C)::R(A)
      • Q(f);N_GUARD,P_PINS(C)::QAB1(H),XP(e)
      • R(a);P_PINS(C),S_CUTB(b)::P(F),XP(e)
      • R(k);N_GUARD,P_PINS(C),S_CUTB(c)::R1(L),XS(j)


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).