MESON Chess Problem Database

Problem Display
PID: 284091 (8/6r1/1p1p2N1/1K1k1P2/2pP1R2/6R1/2P1Pp2/1N1nnB2 w - - 0 1)

Bielefeldt, German

Tarnawiecki, Antonio

Zaragoza-65 JT (Problemas), 2025

8/6r1/1p1p2N1/1K1k1P2/2pP1R2/6R1/2P1Pp2/1N1nnB2

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Re7
      • 2.Sxe7#
    • 1...Rg8
      • 2.Se7#
    • 1...Sb2
      • 2.Sc3#
    • 1...Sc3+
      • 2.Sxc3#
    • 1...Se3
      • 2.Sc3#
    • 1...Sxc2
      • 2.Bg2#
    • 1...Sg2
      • 2.Bxg2#
    • 1...Sd3
      • 2.Bg2#
  • Tries
    • 1.Bg2+?
      • 1...Sf3
        • 2.Bxf3#
      • 1...Sxg2!
    • 1.c3?
      • threat
        • 2.e4#
      • 1...Sxc3+
        • 2.Sxc3#
      • 1...Re7
        • 2.Sxe7#
      • 1...Se3!
    • 1.e3?
      • threat
        • 2.Bxc4#
      • 1...Sc3+
        • 2.Sxc3#
      • 1...Sxe3
        • 2.Sc3#
      • 1...Sb2
        • 2.Sc3#
      • 1...Sd3
        • 2.Bg2#
      • 1...c3
        • 2.Bc4#
      • 1...Rc7!
  • Keys
    • 1.Rd3!
      • threat
        • 2.e4#
      • 1...Sc3+
        • 2.Sxc3#
      • 1...Sxd3
        • 2.Bg2#
      • 1...cxd3
        • 2.c4#
      • 1...Re7
        • 2.Sxe7#
      • 1...Se3
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(h);N_GUARD::S(J),XR(h)
    • R(h);N_GUARD::S(J)
    • S(a);N_GUARD::S(A)
    • S(a);CHECK,N_GUARD::S(A),XS(a)
    • S(b);N_GUARD,XP(C)::B(B)
    • S(b);N_GUARD::B(B),XS(b)
    • S(b);N_GUARD::B(B)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::B(B),XS(b)
      • Refutation
        • S(b);XB(B)
    • Try
      • P(C);
      • Threat
        • P(D)
      • Vars
        • S(a);CHECK,XP(C)::S(A),XS(a)
        • R(h);N_GUARD::S(J),XR(h)
      • Refutation
        • S(a);
    • Try
      • P(D);
      • Threat
        • B(B),XP(d)
      • Vars
        • S(a);CHECK,N_GUARD::S(A),XS(a)
        • S(a);N_GUARD,XP(D)::S(A)
        • S(a);N_GUARD::S(A)
        • S(b);N_GUARD::B(B)
        • P(d);::B(B)
      • Refutation
        • R(h);
  • Actual
    • R(E);
    • Threat
      • P(D)
    • Vars
      • S(a);CHECK,N_GUARD::S(A),XS(a)
      • S(b);N_GUARD,XR(E)::B(B)
      • P(d);OGATE,XR(E)::P(C)
      • R(h);N_GUARD::S(J),XR(h)
      • S(a);N_GUARD::S(A)
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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).