Problem Display
PID: 67617 (8/3P2K1/3pPNb1/N1p2P1p/2Pkp3/3p2p1/1P1B4/5Rbq w - - 0 1)

Szabo, Tibor

3rd Comm., Czech Chess Federation, 1981

8/3P2K1/3pPNb1/N1p2P1p/2Pkp3/3p2p1/1P1B4/5Rbq

#2

10 + 10


SOLUTION


  • SOUND
  • Sets
    • 1...Ke5
      • 2.Sc6#
    • 1...Be3
      • 2.Bc3#
    • 1...e3
      • 2.Bc3#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Bc3#
      • 1...Ke5
        • 2.Sc6#
      • 1...e3!
    • 1.Rc1?
      • threat
        • 2.Sc6#
      • 1...e3
        • 2.Bc3#
      • 1...Ke5!
    • 1.b3?
      • threat
        • 2.Sc6#
      • 1...Ke5
        • 2.Sc6#
      • 1...e3!
    • 1.d8S?
      • threat
        • 2.Sdc6#
      • 1...Ke5
        • 2.Sac6#
        • 2.Sdc6#
      • 1...e3
        • 2.Bc3#
      • 1...Be8!
  • Keys
    • 1.d8Q!
      • threat
        • 2.Qxd6#
      • 1...Ke5
        • 2.Sc6#
      • 1...e3
        • 2.Bc3#
      • 1...d5
        • 2.Qxd5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(e);S_FLIGHT::S(E)
    • B(a);SBLOCK::B(C)
    • P(f);SBLOCK::B(C)
  • Tries
    • Try
      • S(H);
      • Threat
        • B(C)
      • Vars
        • K(e);S_FLIGHT::S(E)
      • Refutation
        • P(f);
    • Try
      • R(A);
      • Threat
        • S(E)
      • Vars
        • P(f);SBLOCK::B(C)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • P(B);
      • Threat
        • S(E)
      • Vars
        • K(e);S_FLIGHT::S(E)
      • Refutation
        • P(f);
    • Try
      • P(I);
      • Threat
        • S(I)
      • Vars
        • P(f);SBLOCK::B(C)
      • Refutation
        • B(j);
  • Actual
    • P(I);P_PINP(i)
    • Threat
      • QAR2(I),XP(i)
    • Vars
      • K(e);N_SPINP(i),S_FLIGHT::S(E)
      • P(f);SBLOCK::B(C)
      • P(i);OGATE::QAR1(I),XP(i)


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).