MESON Chess Problem Database

Problem Display
PID: 243592 (2nRn3/1prb4/4pp2/4kP2/pp2Bp2/N1N5/3R4/Q5BK w - - 0 1)

Bajtay, Jozsef

Nepszava, 1928

2nRn3/1prb4/4pp2/4kP2/pp2Bp2/N1N5/3R4/Q5BK

#2

9 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Sxc4#
    • 1...Bb5
      • 2.Bd4#
    • 1...Bc6
      • 2.Sc4#
      • 2.Bd4#
    • 1...Scd6
      • 2.Bd4#
    • 1...Sed6
      • 2.Bd4#
    • 1...f3
      • 2.Bh2#
  • Tries
    • 1.Qe1?
      • threat
        • 2.Bb1#
        • 2.Bc2#
      • 1...f3
        • 2.Bh2#
        • 2.Qg3#
      • 1...Rc4
        • 2.Sxc4#
      • 1...Bb5
        • 2.Bd4#
        • 2.Bd3#
      • 1...Bc6
        • 2.Sc4#
        • 2.Bd4#
      • 1...Scd6
        • 2.Bd4#
      • 1...Sed6
        • 2.Bd4#
      • 1...Rxc3!
  • Keys
    • 1.Bc2!
      • threat
        • 2.Qe1#
      • 1...Bc6+
        • 2.Sd5#
      • 1...Rxc3
        • 2.Sc4#
      • 1...f3
        • 2.Bh2#
      • 1...Rc4
        • 2.Sxc4#
      • 1...Bb5
        • 2.Bd4#
      • 1...Scd6
        • 2.Bd4#
      • 1...Sed6
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(h);N_GUARD::S(E),XR(h)
    • B(i);::B(B)
    • S(j);SBLOCK::B(B)
    • S(k);SBLOCK::B(B)
    • P(c);OGATEB::B(B)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(h);N_GUARD::S(E),XR(h)
        • S(j);SBLOCK::B(B)
        • S(k);SBLOCK::B(B)
      • Refutation
        • R(h);XS(F)
  • Actual
    • B(G);
    • Threat
      • QAR(A)
    • Vars
      • B(i);CHECK,S_CUTR(h)::QAB(A)+S(F)
      • R(h);N_GUARD,P_SPINR(h),XS(F)::S(E)
      • P(c);OGATEB::B(B)
      • R(h);N_GUARD::S(E),XR(h)
      • B(i);::B(B)
      • S(j);SBLOCK::B(B)
      • S(k);SBLOCK::B(B)
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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).