MESON Chess Problem Database

Problem Display
PID: 96579 (4rR1B/Q7/2B4N/K2R4/np1Nkn2/4p1q1/4pp2/1b6 w - - 0 1)

Mladenovic, Slobodan

Problemas, 1980

4rR1B/Q7/2B4N/K2R4/np1Nkn2/4p1q1/4pp2/1b6

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Re5#
    • 1...Sd3
      • 2.Rb5#
      • 2.Rc5#
      • 2.Re5#
      • 2.Rdf5#
      • 2.Rg5#
      • 2.Rh5#
      • 2.Rd6#
      • 2.Rd7#
      • 2.Rd8#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Rd4#
      • 1...Kf3
        • 2.Re5#
      • 1...Sxd5
        • 2.Qd4#
      • 1...Qg5
        • 2.Qxe3#
      • 1...Qg7
        • 2.Qxe3#
      • 1...Re5!
    • 1.Rg5+?
      • 1...Sd5
        • 2.Qh7#
      • 1...Kd3!
  • Keys
    • 1.Se6!
      • threat
        • 2.Rd4#
      • 1...Kf3
        • 2.Rd3#
      • 1...Sxd5
        • 2.Qd4#
      • 1...Qg5
        • 2.Sxg5#
      • 1...Qg7
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(a);SBLOCK::B(D)+R(C),DCHECK
  • Tries
    • Try
      • S(A);
      • Threat
        • B(D)+R(C),DCHECK
      • Vars
        • K(h);P_SPINS(i),S_FLIGHT::B(D)+R(C)
        • S(i);P_SPINS(i),XR(C)::QAR1(F)
        • Q(e);N_GUARD,P_PINR(C)::QAR1(F),XP(d)
        • Q(e);N_GUARD::QAR1(F),XP(d)
      • Refutation
        • R(j);P_PINR(C)
    • Try
      • R(C);CHECK
      • Vars
        • S(i);P_SPINS(i)::QAB(F)
      • Refutation
        • K(h);S_FLIGHT
  • Actual
    • S(A);
    • Threat
      • B(D)+R(C),DCHECK
    • Vars
      • K(h);P_SPINS(i),S_FLIGHT::B(D)+R(C)
      • S(i);P_SPINS(i),XR(C)::QAR1(F)
      • Q(e);N_GUARD,P_PINR(C)::S(A),XQ(e)
      • Q(e);N_GUARD::R1(G),XS(i)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).