Problem Display
PID: 268991 (b7/4p1Q1/6np/2p1Pp1K/RNpRPk1p/P5p1/2BPP3/B7 w - - 0 1)

Labai, Zoltan

Sachova skladba, 2022

b7/4p1Q1/6np/2p1Pp1K/RNpRPk1p/P5p1/2BPP3/B7

#2

12 + 10


SOLUTION


  • SOUND
  • Sets
    • 1...Bxe4
      • 2.Sd5#
    • 1...Bd5
      • 2.Sxd5#
    • 1...Sxe5
      • 2.Qxh6#
    • 1...c3
      • 2.Sd3#
  • Tries
    • 1.Rxc4?
      • threat
        • 2.Sd3#
        • 2.Qxh6#
      • 1...Sxe5
        • 2.Bxe5#
        • 2.Qxe5#
        • 2.Qxh6#
      • 1...cxb4
        • 2.Qxh6#
      • 1...fxe4
        • 2.Qf7#
      • 1...g2!
    • 1.Rd5?
      • threat
        • 2.Qxh6#
      • 1...fxe4
        • 2.Qf7#
      • 1...g2!
    • 1.Rd6?
      • threat
        • 2.Qxh6#
      • 1...fxe4
        • 2.Qf7#
      • 1...c3
        • 2.Sd3#
      • 1...g2!
    • 1.Rd7?
      • threat
        • 2.Qxh6#
      • 1...fxe4
        • 2.Qf7#
      • 1...c3
        • 2.Sd3#
      • 1...g2!
    • 1.Rd8?
      • threat
        • 2.Qxh6#
      • 1...fxe4
        • 2.Qf7#
      • 1...c3
        • 2.Sd3#
      • 1...g2!
  • Keys
    • 1.Rd3!
      • threat
        • 2.Rf3#
      • 1...Kxe4
        • 2.Rf3#
        • 2.Rd4#
      • 1...Bxe4
        • 2.Qxh6#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...cxd3
        • 2.Sxd3#
      • 1...fxe4
        • 2.Qf7#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(j);N_GUARD,P_SPINB(j),XP(I)::S(G)
    • B(j);N_GUARD::S(G),XB(j)
    • S(g);SBLOCK,XP(J)::QAB(L),XP(h)
    • P(b);N_GUARD::S(G)
  • Tries
    • Try
      • R(H);XP(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);XS(G)::QAB(L),XP(h)
        • P(f);OGATEB,P_SPINP(f),XP(I)::QAR(L)
      • Refutation
        • P(a);
    • Try
      • R(H);
      • Threat
        • QAB(L),XP(h)
      • Vars
        • P(f);OGATEB,XP(I)::QAR(L)
      • Refutation
        • P(a);
    • Try
      • R(H);
      • Threat
        • QAB(L),XP(h)
      • Vars
        • P(f);OGATEB,XP(I)::QAR(L)
        • P(b);N_GUARD::S(G)
      • Refutation
        • P(a);
    • Try
      • R(H);
      • Threat
        • QAB(L),XP(h)
      • Vars
        • P(f);OGATEB,XP(I)::QAR(L)
        • P(b);N_GUARD::S(G)
      • Refutation
        • P(a);
    • Try
      • R(H);
      • Threat
        • QAB(L),XP(h)
      • Vars
        • P(f);OGATEB,XP(I)::QAR(L)
        • P(b);N_GUARD::S(G)
      • Refutation
        • P(a);
  • Actual
    • R(H);
    • Threat
      • R1(H)
    • Vars
      • B(j);SBLOCK,XP(I)::QAB(L),XP(h)
      • S(g);OGATE,XP(J)::QAB1(L),XS(g)
      • P(b);XR(H)::S(G),XP(b)
      • P(f);OGATEB,SBLOCK,XP(I)::QAR(L)


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).