MESON Chess Problem Database

Problem Display
PID: 52118 (4r3/R3p3/4Q2K/8/4B2k/8/p7/r3n2N w - - 0 1)

Atanasievic, Aleksandar

Cik, 1968

4r3/R3p3/4Q2K/8/4B2k/8/p7/r3n2N

#2

5 + 6

102 Probleemblad 2004
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Qg8?
      • threat
        • 2.Qg3#
      • 1...Kh3
        • 2.Qg3#
      • 1...Rxg8!
    • 1.Qe5?
      • threat
        • 2.Qg3#
        • 2.Qh5#
      • 1...Kh3
        • 2.Qg3#
        • 2.Qh5#
      • 1...Kg4
        • 2.Qg3#
      • 1...Rg8
        • 2.Qh5#
      • 1...Rh8+!
    • 1.Qg6?
      • threat
        • 2.Qh5#
        • 2.Qg3#
      • 1...Kh3
        • 2.Qh5#
        • 2.Qg3#
      • 1...Rg8
        • 2.Qh5#
      • 1...Rh8+!
  • Keys
    • 1.Ra4!
      • threat
        • 2.Bb1#
        • 2.Bc2#
        • 2.Bg2#
        • 2.Bd3#
        • 2.Bf3#
        • 2.Bd5#
        • 2.Bf5#
        • 2.Bc6#
        • 2.Bg6#
        • 2.Bb7#
        • 2.Bh7#
        • 2.Ba8#
      • 1...Rh8+
        • 2.Bh7#
      • 1...Rb1
        • 2.Bxb1#
      • 1...Rc1
        • 2.Bc2#
      • 1...Rd1
        • 2.Bd3#
      • 1...Ra8
        • 2.Bxa8#
      • 1...Rb8
        • 2.Bb7#
      • 1...Rc8
        • 2.Bc6#
      • 1...Rd8
        • 2.Bd5#
      • 1...Rf8
        • 2.Bf5#
      • 1...Rg8
        • 2.Bg6#
      • 1...Sc2
        • 2.Bxc2#
      • 1...Sg2
        • 2.Bxg2#
      • 1...Sd3
        • 2.Bxd3#
      • 1...Sf3
        • 2.Bxf3#

Anticipated by 182252(1906)

This anticipates 216845(1973), 52119(1985), 236211(1988)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(d);P-FLIGHT::QAR1(C)
      • Refutation
        • R(f);XQ(C)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(d);P-FLIGHT::QAR1(C)
        • R(f);::QAR1(C)
      • Refutation
        • R(f);CHECK
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);::QAR1(C)
      • Refutation
        • R(f);CHECK
  • Actual
    • R(E);
    • Threat
      • DUALS(12)
    • Vars
      • R(f);CHECK::R(E)+B(B)
      • R(a);::R(E)+B(B),XR(a)
      • R(a);::R(E)+B(B)
      • R(f);::R(E)+B(B),XR(f)
      • R(f);::R(E)+B(B)
      • S(b);::R(E)+B(B),XS(b)
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).