Problem Display
PID: 7399 (1R4B1/2KN4/2ppr1pQ/n2k1p2/PP1p4/R4P2/6N1/8 w - - 0 1)

Reitman, Mark

11th Comm., StrateGems, 1999

1R4B1/2KN4/2ppr1pQ/n2k1p2/PP1p4/R4P2/6N1/8

#2

10 + 8


3657 Izbrannie Shakhmatnie Zadachi Marka Reitmana 2000
145 StrateGems 2000

SOLUTION


  • SOUND
  • Sets
    • 1...Sc4
      • 2.Sf4#
    • 1...g5
      • 2.Bxe6#
      • 2.Qxe6#
  • Tries
    • 1.Sf6+?
      • 1...Kc4
        • 2.Qc1#
      • 1...Ke5!
    • 1.Qc1?
      • threat
        • 2.Sf4#
      • 1...d3
        • 2.Rxd3#
      • 1...f4
        • 2.Sxf4#
      • 1...g5!
    • 1.Qd2?
      • threat
        • 2.Se3#
      • 1...Kc4
        • 2.Sb6#
      • 1...d3
        • 2.Qxd3#
      • 1...Sc4
        • 2.Sf4#
      • 1...f4!
    • 1.Qg7?
      • threat
        • 2.Sb6#
      • 1...Sc4
        • 2.Sf4#
      • 1...Kc4!
    • 1.Qh8?
      • threat
        • 2.Sb6#
      • 1...Sc4
        • 2.Sf4#
      • 1...Kc4!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Sb6#
      • 1...Kc4
        • 2.Se3#
      • 1...Sc4
        • 2.Sf6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::S(A)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR(F)
      • Refutation
        • K(c);N_SPINR(g),P-FLIGHT
    • Try
      • Q(F);
      • Threat
        • S(A)
      • Vars
        • P(a);OGATEB::R(B),XP(a)
        • P(d);::S(A),XP(d)
      • Refutation
        • P(h);
    • Try
      • Q(F);P_PINP(a)
      • Threat
        • S(A)
      • Vars
        • K(c);N_SPINP(a),S_FLIGHT::S(H)
        • P(a);OGATEB::QAR2(F),XP(a)
        • S(b);SBLOCK::S(A)
      • Refutation
        • P(d);
    • Try
      • Q(F);
      • Threat
        • S(H)
      • Vars
        • S(b);SBLOCK::S(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • S(H)
      • Vars
        • S(b);SBLOCK::S(A)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(F);
    • Threat
      • S(H)
    • Vars
      • K(c);P_SPINP(a),S_FLIGHT::S(A)
      • S(b);SBLOCK::S(H)


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).