Problem Display
PID: 186869 (b7/3K3p/2p2p2/p2NkP1p/Rn5N/1QPp4/6n1/5R1B w - - 0 1)

Bruch, Wieland

Freie Presse, 2000

(First published on Fri Oct 6 2000)

b7/3K3p/2p2p2/p2NkP1p/Rn5N/1QPp4/6n1/5R1B

#2

9 + 10


15391 Problemschach-Jahrbuch (2000) 2001

SOLUTION


  • SOUND
  • Sets
    • 1...Ke4
      • 2.Re1#
    • 1...Se1
      • 2.Rxe1#
  • Tries
    • 1.Sg6+?
      • 1...Ke4
        • 2.Bxg2#
        • 2.Rf4#
        • 2.Qc4#
      • 1...hxg6!
    • 1.Sxb4?
      • threat
        • 2.Sxd3#
        • 2.Qe6#
      • 1...Ke4
        • 2.Qe6#
      • 1...axb4
        • 2.Qe6#
      • 1...Se1
        • 2.Qe6#
      • 1...d2
        • 2.Sd3#
        • 2.Qe6#
      • 1...Sf4!
    • 1.Sf4?
      • threat
        • 2.Qe6#
      • 1...Ke4
        • 2.Qe6#
      • 1...Sd5
        • 2.Sxd3#
      • 1...Sxf4!
    • 1.Sb6?
      • threat
        • 2.Qe6#
      • 1...Ke4
        • 2.Qe6#
      • 1...Sf4
        • 2.Sc4#
      • 1...Sd5!
    • 1.Se7?
      • threat
        • 2.Qe6#
      • 1...Ke4
        • 2.Qe6#
      • 1...Sd5
        • 2.Sf3#
      • 1...Sf4!
    • 1.Re1+?
      • 1...Se3
        • 2.Rxe3#
      • 1...Sxe1!
    • 1.Qc4?
      • threat
        • 2.Qd4#
      • 1...Sc2
        • 2.Qe4#
      • 1...c5!
    • 1.Qxb4?
      • threat
        • 2.Qd6#
        • 2.Qd4#
        • 2.Qe4#
      • 1...Kxd5
        • 2.Qd6#
        • 2.Qd4#
      • 1...cxd5
        • 2.Qd6#
        • 2.Qe7#
        • 2.Qd4#
        • 2.Qb8#
      • 1...c5
        • 2.Qe4#
      • 1...axb4!
  • Keys
    • 1.Se3!
      • threat
        • 2.Qe6#
      • 1...Ke4
        • 2.Qe6#
      • 1...Sf4
        • 2.Sc4#
      • 1...Sd5
        • 2.Sf3#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(e);P-FLIGHT,P_SPINS(a)::R(A)
    • S(a);N_GUARD::R(A),XS(a)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • P(i);XS(F)
    • Try
      • S(G);XS(c)
      • Threat
        • DUALS(2)
      • Vars
        • K(e);P-FLIGHT,P_SPINS(a)::QAR2(C)
        • P(d);XS(G)::QAR1(C)
        • S(a);::QAR1(C)
      • Refutation
        • S(a);
    • Try
      • S(G);
      • Threat
        • QAR1(C)
      • Vars
        • K(e);P-FLIGHT,P_SPINS(a)::QAR2(C)
        • S(c);N_GUARD::S(G),XP(b)
      • Refutation
        • S(a);XS(G)
    • Try
      • S(G);
      • Threat
        • QAR1(C)
      • Vars
        • K(e);P-FLIGHT,P_SPINS(a)::QAR2(C)
        • S(a);::S(G)
      • Refutation
        • S(c);
    • Try
      • S(G);
      • Threat
        • QAR1(C)
      • Vars
        • K(e);P-FLIGHT,P_SPINS(a)::QAR2(C)
        • S(c);::S(F)
      • Refutation
        • S(a);
    • Try
      • R(A);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::R(A),XS(a)
      • Refutation
        • S(a);XR(A)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • S(c);::QAR1(C)
      • Refutation
        • P(g);
    • Try
      • Q(C);XS(c)
      • Threat
        • DUALS(3)
      • Vars
        • P(g);::QAR1(C)
      • Refutation
        • P(d);XQ(C)
  • Actual
    • S(G);
    • Threat
      • QAR1(C)
    • Vars
      • K(e);P-FLIGHT,P_SPINS(a)::QAR2(C)
      • S(a);::S(G)
      • S(c);::S(F)


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).