MESON Chess Problem Database

Problem Display
PID: 141088 (4R3/n2p1pb1/1p6/3p3p/1P1kP1PQ/1K2p3/2Bp4/8 w - - 0 1)

Vladimirov, Viacheslav Semenovich

Probleemblad, 1976

4R3/n2p1pb1/1p6/3p3p/1P1kP1PQ/1K2p3/2Bp4/8

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bf6
      • 2.Qxf6#
    • 1...Bh6
      • 2.Qf6#
    • 1...Bf8
      • 2.Qf6#
    • 1...e2
      • 2.Qf2#
  • Tries
    • 1.Qd8?
      • threat
        • 2.Qxb6#
      • 1...dxe4
        • 2.Qxd7#
      • 1...Bf8
        • 2.Qf6#
      • 1...b5
        • 2.Qb6#
      • 1...Sc8!
    • 1.Qh1?
      • threat
        • 2.Qa1#
      • 1...dxe4
        • 2.Qxe4#
      • 1...e2
        • 2.Qg1#
      • 1...d1Q
        • 2.Qxd1#
      • 1...d1S
        • 2.Qxd1#
      • 1...d1B
        • 2.Qxd1#
      • 1...d1R
        • 2.Qxd1#
      • 1...Sb5!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qxd5#
      • 1...dxe4
        • 2.Rxe4#
      • 1...Be5
        • 2.Qxe5#
      • 1...e2
        • 2.Qxd2#
      • 1...f5
        • 2.Qxg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(j);N_GUARD::QAB(F),XB(j)
    • B(j);N_GUARD::QAB(F)
    • P(b);OGATEB::QAB(F)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAB(F),XP(f)
      • Vars
        • P(d);OGATEB,P_SPINP(h),XP(D)::QAR(F),XP(h)
        • B(j);N_GUARD::QAB(F)
        • P(f);::QAB(F)
      • Refutation
        • S(g);
    • Try
      • Q(F);
      • Threat
        • QAB(F)
      • Vars
        • P(d);OGATE,XP(D)::QAR1(F),XP(d)
        • P(b);OGATEB::QAB(F)
        • P(a);OGATEB,P_PINB(A)::QAR(F),XQ(a)
        • P(a);OGATEB::QAR(F),XS(a)
        • P(a);OGATEB,P_PINB(A)::QAR(F),XB(a)
        • P(a);OGATEB::QAR(F),XR(a)
      • Refutation
        • S(g);
  • Actual
    • Q(F);
    • Threat
      • QAR1(F),XP(d)
    • Vars
      • P(d);OGATE,XP(D)::R1(G),XP(d)
      • B(j);N_GUARD::QAB1(F),XB(j)
      • P(b);OGATE::QAR2(F),XP(a)
      • P(i);N_GUARD::QAB(F),XB(j)
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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).