Problem Display
PID: 64145 (4N3/8/2P1P1P1/1P2k3/3p4/3Q2P1/B1K5/8 w - - 0 1)

Rasovsky, Josef

Source?, 1904

4N3/8/2P1P1P1/1P2k3/3p4/3Q2P1/B1K5/8

#2

9 + 2


16 Chess Amateur (The) 1910

SOLUTION


  • SOUND
  • Tries
    • 1.Bb1?
      • 1...Kxe6
        • 2.Qe4#
      • 1...Kd5!
    • 1.Qf1?
      • threat
        • 2.Qf4#
      • 1...Ke4
        • 2.Qf4#
      • 1...d3+!
  • Keys
    • 1.Kb3!
      • 1...Kd5
        • 2.Qf5#
      • 1...Kxe6
        • 2.Qe4#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Vars
        • K(b);P-FLIGHT,XP(G)::QAR2(C)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
      • Refutation
        • P(a);CHECK
  • Actual
    • K(B);S_FLIGHT
    • Vars
      • K(b);P-FLIGHT,P_SPINP(a)::QAR2(C)
      • K(b);P-FLIGHT,XP(G)::QAR2(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).