MESON Chess Problem Database

Problem Display
PID: 11795 (8/1p4p1/1B3bK1/5R1n/1n1Pk1p1/4P1p1/3PQ3/7N w - - 0 1)

Mladenovic, Slobodan

2nd Prize, Die Schwalbe, 1972

8/1p4p1/1B3bK1/5R1n/1n1Pk1p1/4P1p1/3PQ3/7N

#2

8 + 8

273 Mat Plus 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd4
      • 2.exd4#
    • 1...Bh4
      • 2.Re5#
    • 1...Be5
      • 2.Rxe5#
    • 1...Bg5
      • 2.Re5#
    • 1...Be7
      • 2.Re5#
    • 1...Bd8
      • 2.Re5#
    • 1...Sa2
      • 2.d3#
    • 1...Sc2
      • 2.d3#
    • 1...Sd3
      • 2.Qg2#
    • 1...Sd5
      • 2.d3#
    • 1...Sa6
      • 2.d3#
    • 1...Sc6
      • 2.d3#
    • 1...Sf4+
      • 2.exf4#
    • 1...g2
      • 2.Sf2#
  • Tries
    • 1.Kxh5?
      • threat
        • 2.Sxg3#
      • 1...Kxf5
        • 2.Qxg4#
      • 1...Be5
        • 2.Rxe5#
      • 1...Bh4
        • 2.Re5#
      • 1...g2
        • 2.Sg3#
      • 1...g6+!
    • 1.Rxh5?
      • threat
        • 2.Sxg3#
      • 1...Be5
        • 2.Rxe5#
      • 1...Bh4
        • 2.Re5#
      • 1...g2
        • 2.Sf2#
        • 2.Sg3#
      • 1...Bg5!
  • Keys
    • 1.Qc4!
      • 1...Sf4+
        • 2.Rxf4#
      • 1...Bxd4
        • 2.Qxd4#
      • 1...Bh4
        • 2.d5#
      • 1...Be5
        • 2.dxe5#
      • 1...Bg5
        • 2.d5#
      • 1...Be7
        • 2.d5#
      • 1...Bd8
        • 2.d5#
      • 1...Sa2
        • 2.Qc2#
      • 1...Sc2
        • 2.Qxc2#
      • 1...Sd3
        • 2.Qd5#
      • 1...Sd5
        • 2.Qc2#
      • 1...Sa6
        • 2.Qc2#
      • 1...Sc6
        • 2.Qc2#
      • 1...g2
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 13
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(f);OGATE,XP(E)::QAR(C)+P(D),XB(f)
    • B(f);N_GUARD::R1(F)
    • B(f);N_GUARD::R1(F),XB(f)
    • S(b);N_GUARD::P(B)
    • S(b);SBLOCK::QAB(C)
    • S(e);CHECK,OGATE::QAR(C)+P(D),XS(e)
    • P(a);N_GUARD::S(A)
  • Tries
    • Try
      • K(H);S_FLIGHT,XS(e)
      • Threat
        • S(A),XP(a)
      • Vars
        • K(c);S_FLIGHT,XR(F)::QAB1(C),XP(d)
        • B(f);N_GUARD::R1(F),XB(f)
        • B(f);N_GUARD::R1(F)
        • P(a);::S(A)
      • Refutation
        • P(h);CHECK
    • Try
      • R(F);XS(e)
      • Threat
        • S(A),XP(a)
      • Vars
        • B(f);N_GUARD::R1(F),XB(f)
        • B(f);N_GUARD::R1(F)
      • Refutation
        • B(f);
  • Actual
    • Q(C);
    • Vars
      • S(e);CHECK,N_GUARD::R1(F),XS(e)
      • B(f);OGATE,P_SPINB(f),XP(E)::QAR1(C),XB(f)
      • B(f);N_GUARD::QAR(C)+P(E)
      • B(f);OGATE::QAR(C)+P(E),XB(f)
      • S(b);N_GUARD::QAB(C)
      • S(b);N_GUARD::QAB(C),XS(b)
      • S(b);N_GUARD,SBLOCK::QAB1(C)
      • P(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).