MESON Chess Problem Database

Problem Display
PID: 133809 (2b1NbK1/1r3PB1/N1p4p/p2k4/5p2/1P2RP2/1n4Q1/3r4 w - - 0 1)

Rusenescu, Eugen

Die Schwalbe, 1987

2b1NbK1/1r3PB1/N1p4p/p2k4/5p2/1P2RP2/1n4Q1/3r4

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Re5#
  • Tries
    • 1.Qc2?
      • threat
        • 2.Qe4#
      • 1...Rd4
        • 2.Re5#
      • 1...Rb4
        • 2.Sac7#
      • 1...Re7
        • 2.Qc5#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Sd3
        • 2.Qc4#
      • 1...Rd3!
    • 1.Qg5+?
      • 1...Bf5
        • 2.Qxf5#
      • 1...hxg5!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Qe4#
      • 1...Rd4
        • 2.Re5#
      • 1...Rb4
        • 2.Sec7#
      • 1...Re7
        • 2.Qd6#
      • 1...Bf5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);SBLOCK::R1(C)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • R(a);SBLOCK::R1(C)
        • R(h);N_GUARD::S(E)
        • R(h);S_CUTB(j)::QAR1(A)
        • B(i);N_GUARD::QAR2(A),XB(i)
        • S(b);N_GUARD::QAB1(A)
      • Refutation
        • R(a);
    • Try
      • Q(A);CHECK
      • Vars
        • B(i);N_GUARD,P_SPINB(i)::QAR2(A),XB(i)
      • Refutation
        • P(g);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • R(a);SBLOCK::R1(C)
      • R(h);N_GUARD::S(H)
      • R(h);S_CUTB(j)::QAR1(A)
      • B(i);N_GUARD::QAR2(A),XB(i)
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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).