Problem Display
PID: 138015 (8/1r6/1p3pNP/5kpK/R6p/4p3/B2NPp2/3R4 w - - 0 1)

Albasi, Mario

Comm., Piatesi MT, 1987-1991

8/1r6/1p3pNP/5kpK/R6p/4p3/B2NPp2/3R4

#2

8 + 8


14744 Nuova Antologia dei Problemisti Italiani 1992

SOLUTION


  • SOUND
  • Sets
    • 1...f1Q
      • 2.Rxf1#
    • 1...f1S
      • 2.Rxf1#
    • 1...f1B
      • 2.Rxf1#
    • 1...f1R
      • 2.Rxf1#
    • 1...exd2
      • 2.e4#
    • 1...g4
      • 2.Rf4#
  • Tries
    • 1.Sxh4+?
      • 1...Ke5
        • 2.Sdf3#
      • 1...gxh4!
    • 1.Se7+?
      • 1...Ke5
        • 2.Sf3#
      • 1...Rxe7!
    • 1.Re4?
      • threat
        • 2.Be6#
      • 1...Re7
        • 2.Sxe7#
      • 1...exd2!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sxe3#
        • 2.Sd6#
      • 1...Ke4
        • 2.Sd6#
        • 2.Bb1#
      • 1...Ke6
        • 2.Sxe3#
      • 1...f1S
        • 2.Sd6#
      • 1...Rd7
        • 2.Sxe3#
      • 1...Re7
        • 2.Sd6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • P(a);OGATEB::R(A),XQ(a)
    • P(a);OGATEB::R(A),XS(a)
    • P(a);OGATEB::R(A),XB(a)
    • P(a);OGATEB::R(A),XR(a)
    • P(b);OGATE,XS(C)::P(D)
    • P(e);N_GUARD::R1(E)
  • Tries
    • Try
      • S(G);CHECK,XP(c)
      • Vars
        • K(d);P-FLIGHT::S(C)
      • Refutation
        • P(e);XS(G)
    • Try
      • S(G);CHECK
      • Vars
        • K(d);P-FLIGHT::S(C)
      • Refutation
        • R(h);XS(G)
    • Try
      • R(E);
      • Threat
        • B(B)
      • Vars
        • R(h);N_GUARD::S(G),XR(h)
      • Refutation
        • P(b);XS(C)
  • Actual
    • S(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(d);S_FLIGHT::B(B)+S(C),XP(b)
      • P(a);::S(C)
      • R(h);::S(C),XP(b)
      • R(h);::S(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).