MESON Chess Problem Database

Problem Display
PID: 232238 (3B4/7B/2pNp3/8/p2k2p1/K5P1/3N4/2R1R3 w - - 0 1)

Pilchenko, Viacheslav Karlovich

Schweizerische Schachzeitung, 1987

3B4/7B/2pNp3/8/p2k2p1/K5P1/3N4/2R1R3

#2

8 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Sb3+?
      • 1...Kd5
        • 2.Rcd1#
      • 1...axb3!
    • 1.Sf3+?
      • 1...Kd5
        • 2.Red1#
      • 1...gxf3!
    • 1.Red1?
      • 1...Kd5
        • 2.Sf3#
      • 1...Ke5
        • 2.S2c4#
      • 1...c5
        • 2.S2c4#
      • 1...e5
        • 2.Sf1#
      • 1...Ke3!
  • Keys
    • 1.Rcd1!
      • 1...Kc3
        • 2.Sb1#
      • 1...Kc5
        • 2.S2e4#
      • 1...Kd5
        • 2.Sb3#
      • 1...c5
        • 2.Sb1#
      • 1...e5
        • 2.S2e4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(b);P-FLIGHT::R(A)
      • Refutation
        • P(a);XS(C)
    • Try
      • S(C);CHECK
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • P(c);XS(C)
    • Try
      • R(B);
      • Vars
        • K(b);P-FLIGHT::R(B)+S(C)
        • K(b);S_FLIGHT::S(C)
        • P(d);SBLOCK::R(B)+S(C)
        • P(e);SBLOCK::R(B)+S(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(b);S_FLIGHT::S(C)
      • K(b);P-FLIGHT::R(A)+S(C)
      • P(d);SBLOCK::R(A)+S(C)
      • P(e);SBLOCK::R(A)+S(C)
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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).