MESON Chess Problem Database

Problem Display
PID: 207900 (1r3n1b/3n4/7p/2p4r/N3k1Bp/2R2N2/p7/KbBQ4 w - - 0 1)

Tuhan-Baranowski, Leon

Il Problema, 1932

1r3n1b/3n4/7p/2p4r/N3k1Bp/2R2N2/p7/KbBQ4

#2

7 + 11

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Qe2#
      • 2.Qe1#
    • 1...Re5
      • 2.Rc4#
    • 1...Bd3
      • 2.Qxd3#
    • 1...Bxc3+
      • 2.Sxc3#
    • 1...Se5
      • 2.Sxc5#
    • 1...Sf6
      • 2.Rc4#
  • Keys
    • 1.Qd6!
      • threat
        • 2.Sd2#
      • 1...Bxc3+
        • 2.Sxc3#
      • 1...Rd5
        • 2.Qf4#
      • 1...Re5
        • 2.Rc4#
      • 1...Rb2
        • 2.Re3#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Be5
        • 2.Qc6#
      • 1...Se5
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(f);N_PINR(D)::R(D)
    • B(a);N_GUARD::QAB1(C),XB(a)
    • B(k);CHECK,XR(D)::S(F),XB(k)
    • S(h);N_GUARD,N_PINR(D),S_CUTR(f)::S(F),XP(e)
    • S(h);N_PINR(D)::R(D)
  • Actual
    • Q(C);
    • Threat
      • S(E)
    • Vars
      • B(k);CHECK,XR(D)::S(F),XB(k)
      • R(f);SBLOCK::QAR1(C)
      • R(f);N_PINR(D)::R(D)
      • R(i);N_PINR(D)::R1(D)
      • B(a);N_GUARD::QAB1(C),XB(a)
      • B(k);S_CUTR(f)::QAB(C)
      • S(h);N_GUARD,N_PINR(D),S_CUTR(f)::S(F),XP(e)
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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).