MESON Chess Problem Database

Problem Display
PID: 163002 (8/Kp1pN3/p2P1Rp1/4kpP1/1N5n/2P2BP1/r4Ppp/R1n4Q w - - 0 1)

Herter, Claus

Landeszeitung fur die Luneburger Heide, 1992

(First published on Sat Nov 7 1992)

8/Kp1pN3/p2P1Rp1/4kpP1/1N5n/2P2BP1/r4Ppp/R1n4Q

#2

12 + 11

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Se2
      • 2.Sd3#
    • 1...Sb3
      • 2.Sd3#
    • 1...Sd3
      • 2.Sxd3#
    • 1...f4
      • 2.gxf4#
  • Tries
    • 1.Qxc1?
      • threat
        • 2.Sd3#
        • 2.Qe3#
        • 2.Qf4#
      • 1...Sxf3
        • 2.Qe3#
        • 2.Qf4#
      • 1...Re2
        • 2.Sd3#
        • 2.Qf4#
      • 1...f4
        • 2.Sd3#
        • 2.Qxf4#
        • 2.gxf4#
      • 1...Rd2!
    • 1.Qd1?
      • threat
        • 2.Qd4#
        • 2.Qd5#
      • 1...Sxf3
        • 2.Qd5#
      • 1...Ra5
        • 2.Qd4#
      • 1...Se2
        • 2.Sd3#
        • 2.Qd5#
      • 1...Sb3
        • 2.Sd3#
        • 2.Qd5#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Rd2!
    • 1.Qe1+?
      • 1...Se2
        • 2.Sd3#
      • 1...Re2!
  • Keys
    • 1.Bxb7!
      • threat
        • 2.f4#
      • 1...Rxf2
        • 2.Ra5#
      • 1...g1Q
        • 2.Qd5#
      • 1...g1B
        • 2.Qd5#
      • 1...Se2
        • 2.Sd3#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Sf3
        • 2.Sxg6#
      • 1...f4
        • 2.gxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD::S(G)
    • S(a);N_GUARD::S(G),XS(a)
    • P(g);OGATE::P(F),XP(g)
  • Tries
    • Try
      • Q(B);XS(a)
      • Threat
        • DUALS(3)
      • Refutation
        • R(b);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(e);XB(E)::QAR1(B)
        • R(b);::QAB1(B)
        • S(a);N_GUARD::S(G),XS(a)
      • Refutation
        • R(b);
    • Try
      • Q(B);CHECK
      • Vars
        • S(a);P_SPINS(a)::S(G)
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • B(E);XP(j)
    • Threat
      • P(C)
    • Vars
      • R(b);OGATE,XP(C)::R(A)
      • P(c);OGATE,P_PINP(C)::QAR1(B)
      • S(a);N_GUARD::S(G)
      • S(a);N_GUARD::S(G),XS(a)
      • S(e);N_GUARD::S(L),XP(i)
      • P(g);OGATE::P(F),XP(g)
HTML5 logo

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).