MESON Chess Problem Database

Problem Display
PID: 176370 (4R3/r3bp2/7Q/3BNk2/2P5/8/rn2P1PK/B6n w - - 0 1)

Belchikov, Nikolai Ivanovich

Bikov, Nikolai Aleksandrovich

Schach-Echo, 1972

4R3/r3bp2/7Q/3BNk2/2P5/8/rn2P1PK/B6n

#2

9 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.e4#
      • 2.g4#
    • 1...Bb4
      • 2.e4#
      • 2.g4#
    • 1...Bh4
      • 2.e4#
      • 2.g4#
    • 1...Bc5
      • 2.e4#
      • 2.g4#
    • 1...Bd6
      • 2.e4#
      • 2.g4#
    • 1...Bf6
      • 2.e4#
      • 2.g4#
    • 1...Bd8
      • 2.e4#
      • 2.g4#
    • 1...Bf8
      • 2.e4#
      • 2.g4#
    • 1...Sd1
      • 2.e4#
      • 2.g4#
    • 1...Sd3
      • 2.e4#
      • 2.g4#
    • 1...Sa4
      • 2.e4#
      • 2.g4#
    • 1...Sxc4
      • 2.e4#
      • 2.g4#
  • Tries
    • 1.g3?
      • threat
        • 2.Qf4#
      • 1...Kxe5
        • 2.Qf4#
      • 1...Bg5
        • 2.e4#
      • 1...Sd3
        • 2.g4#
      • 1...Sxg3!
  • Keys
    • 1.e3!
      • threat
        • 2.Qf4#
      • 1...Kxe5
        • 2.Qf4#
      • 1...Bg5
        • 2.g4#
      • 1...Sd3
        • 2.e4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(C);
      • Threat
        • QAR1(H)
      • Vars
        • K(d);P-FLIGHT,P_SPINB(f),P_SPINS(c),XS(G)::QAB1(H)
        • B(f);::P(B)
        • S(c);P_PINP(B)::P(C)
      • Refutation
        • S(a);XP(C)
  • Actual
    • P(B);
    • Threat
      • QAR1(H)
    • Vars
      • K(d);P-FLIGHT,P_SPINB(f),P_SPINS(c),XS(G)::QAB1(H)
      • B(f);::P(C)
      • S(c);P_PINP(C)::P(B)
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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).