MESON Chess Problem Database

Problem Display
PID: 269474 (bq2r2B/7Q/1P3R1p/NN1kP1R1/1Pp5/7B/4r2p/6bK w - - 0 1)

Baier, Roland

Die Tat, 1974

(First published on Fri Oct 4 1974)

bq2r2B/7Q/1P3R1p/NN1kP1R1/1Pp5/7B/4r2p/6bK

#2

11 + 9

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe5
      • 2.Rd6#
    • 1...Qd6
      • 2.Rxd6#
    • 1...Qa7
      • 2.Rd6#
    • 1...Qb7
      • 2.Rd6#
    • 1...Qc8
      • 2.Rd6#
    • 1...Rg2
      • 2.Bxg2#
    • 1...R2xe5
      • 2.Bg2#
    • 1...R8xe5
      • 2.Be6#
    • 1...Re6
      • 2.Bxe6#
    • 1...Rc8
      • 2.Be6#
    • 1...Rd8
      • 2.Be6#
    • 1...Rf8
      • 2.Be6#
    • 1...Rg8
      • 2.Be6#
    • 1...Rxh8
      • 2.Be6#
  • Tries
    • 1.Bg2+?
      • 1...Re4
        • 2.Bxe4#
        • 2.Qxe4#
      • 1...Rxg2!
    • 1.Qd3+?
      • 1...Bd4
        • 2.Sc3#
        • 2.Qxd4#
      • 1...cxd3!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Sc3#
      • 1...Qxe5
        • 2.Qd7#
      • 1...R2xe5
        • 2.Qe4#
      • 1...R8xe5
        • 2.Qf7#
      • 1...Rc2
        • 2.Qe4#
      • 1...Re3
        • 2.Rd4#
      • 1...Re4
        • 2.Qxe4#
      • 1...Bd4
        • 2.Rxd4#
      • 1...c3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 5
    • REMOVED MATES = 11
  • Sets
    • Q(h);N_GUARD,P_SPINQ(h),XP(F)::R1(I)
    • Q(h);N_GUARD::R1(I),XQ(h)
    • Q(h);N_GUARD::R1(I)
    • R(b);N_GUARD::B(B),XR(b)
    • R(b);N_GUARD,P_SPINR(b),XP(F)::B(B)
    • R(i);N_GUARD,P_SPINR(i),XP(F)::B(B)
    • R(i);N_GUARD::B(B),XR(i)
    • R(i);N_GUARD::B(B)
    • R(i);N_GUARD,XB(K)::B(B)
  • Tries
    • Try
      • B(B);CHECK
      • Refutation
        • R(b);XB(B)
    • Try
      • Q(J);CHECK
      • Refutation
        • P(d);XQ(J)
  • Actual
    • R(I);
    • Threat
      • S(E)
    • Vars
      • Q(h);N_GUARD,P_SPINQ(h),XP(F)::QAR2(J)
      • R(b);N_GUARD,P_SPINR(b),XP(F)::QAB1(J)
      • R(i);N_GUARD,P_SPINR(i),XP(F)::QAB(J)
      • R(b);N_GUARD::QAB1(J)
      • R(b);S_CUTB(a)::R1(I)
      • R(b);N_GUARD::QAB1(J),XR(b)
      • B(a);N_GUARD::R1(I),XB(a)
      • P(d);::S(E),XP(d)
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).