Problem Display
PID: 248428 (8/2p5/n1B2P2/1N2p3/1pk3K1/r1bN4/PqrRp3/1bR3Q1 w - - 0 1)

Prins, Hendrik

Comm., Novi Sad Olympic Ty., 1990

8/2p5/n1B2P2/1N2p3/1pk3K1/r1bN4/PqrRp3/1bR3Q1

#2

9 + 11


14867 BCPS Library 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Rxd2
      • 2.Sxe5#
    • 1...Bxd2
      • 2.Sxb2#
    • 1...Sc5
      • 2.Qxc5#
    • 1...Sb8
      • 2.Qc5#
  • Tries
    • 1.Kh3?
      • threat
        • 2.Qg8#
      • 1...Rxd2
        • 2.Sxe5#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Bxd2!
    • 1.Kf5?
      • threat
        • 2.Qg8#
      • 1...Bxd2
        • 2.Sxb2#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Rxd2!
  • Keys
    • 1.Kh5!
      • threat
        • 2.Qg8#
      • 1...Rxd2
        • 2.Sxe5#
      • 1...Bxd2
        • 2.Sxb2#
      • 1...Sc5
        • 2.Qxc5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(c);P_SPINB(f),XR(D)::S(E),XP(i)
    • B(f);N_GUARD,P_SPINR(c),XR(D)::S(E),XQ(b)
    • S(j);N_GUARD::QAR1(B),XS(j)
    • S(j);N_GUARD::QAR1(B)
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Threat
        • QAB(B)
      • Vars
        • R(c);P_SPINB(f),XR(D)::S(E),XP(i)
        • S(j);N_GUARD::QAR1(B),XS(j)
      • Refutation
        • B(f);P_PINS(E),P_SPINR(c),XR(D)
    • Try
      • K(F);S_FLIGHT
      • Threat
        • QAB(B)
      • Vars
        • B(f);N_GUARD,P_SPINR(c),XR(D)::S(E),XQ(b)
        • S(j);N_GUARD::QAR1(B),XS(j)
      • Refutation
        • R(c);P_PINS(E),P_SPINB(f),XR(D)
  • Actual
    • K(F);S_FLIGHT
    • Threat
      • QAB(B)
    • Vars
      • R(c);P_SPINB(f),XR(D)::S(E),XP(i)
      • B(f);N_GUARD,P_SPINR(c),XR(D)::S(E),XQ(b)
      • S(j);N_GUARD::QAR1(B),XS(j)


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).