Problem Display
PID: 124352 (8/5p2/5Qp1/pp4P1/rp5K/pPp1R3/rk1B4/b1RB4 w - - 0 1)

Miloseski, Bosko

Vratnica-64, 2006

8/5p2/5Qp1/pp4P1/rp5K/pPp1R3/rk1B4/b1RB4

#2

8 + 11


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Rc2+?
      • 1...Kxb3
        • 2.Qxf7#
      • 1...Kb1!
    • 1.Rcxc3?
      • threat
        • 2.Rc1#
      • 1...Kb1
        • 2.Rc1#
      • 1...bxc3+!
    • 1.Qf5?
      • threat
        • 2.Rb1#
        • 2.Qb1#
        • 2.Qc2#
      • 1...c2
        • 2.Qxc2#
        • 2.Qe5#
        • 2.Qf6#
      • 1...gxf5!
    • 1.Qxf7?
      • 1...c2
        • 2.Qf6#
        • 2.Qg7#
      • 1...cxd2!
    • 1.bxa4?
      • 1...b3
        • 2.Qxc3#
      • 1...bxa4!
  • Keys
    • 1.Re5!
      • 1...cxd2
        • 2.Rec5#
      • 1...c2
        • 2.Re3#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(D)::QAB(H),XP(k)
      • Refutation
        • K(c);N_SPINP(e),P-FLIGHT
    • Try
      • R(A);XP(e)
      • Threat
        • QAB(H)+R(A)
      • Vars
        • K(c);P-FLIGHT::R1(A)
      • Refutation
        • P(g);CHECK,P_SPINP(g),XR(A)
    • Try
      • Q(H);N_PINP(e)
      • Threat
        • DUALS(3)
      • Refutation
        • P(j);XQ(H)
    • Try
      • Q(H);N_PINP(e),XP(k)
      • Refutation
        • P(e);XB(C)
    • Try
      • P(D);XR(f)
      • Vars
        • P(g);N_GUARD::QAB1(H),XP(e)
      • Refutation
        • P(i);XP(D)
  • Actual
    • R(E);N_PINP(e)
    • Vars
      • P(e);OGATEB,XB(C)::QAB(H)+R(E)
      • P(e);OGATEB::QAB(H)+R(E)


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).