MESON Chess Problem Database

Problem Display
PID: 63583 (5R2/B1b3n1/BpN3NK/p4bP1/4P1pp/2pPk3/Rn4Qp/8 w - - 0 1)

Erokhin, Vladimir Alekseevich

Probleemblad, 1975

5R2/B1b3n1/BpN3NK/p4bP1/4P1pp/2pPk3/Rn4Qp/8

#2

11 + 11

3771 FIDE Album (1974-1976) 1980

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe4
      • 2.Qf2#
    • 1...Be6
      • 2.Qf2#
    • 1...Bxg6
      • 2.Qf2#
    • 1...Bd7
      • 2.Qf2#
    • 1...Bc8
      • 2.Qf2#
    • 1...Bg3
      • 2.Bxb6#
    • 1...Bf4
      • 2.Bxb6#
    • 1...Bb8
      • 2.Bxb6#
    • 1...Sd1
      • 2.Re2#
      • 2.Qe2#
    • 1...Sxd3
      • 2.Re2#
      • 2.Qe2#
    • 1...Sa4
      • 2.Re2#
      • 2.Qe2#
      • 2.Qf2#
    • 1...Sc4
      • 2.Qe2#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Sc2#
      • 1...Kd4
        • 2.Qf2#
      • 1...Sc4
        • 2.Qf2#
      • 1...c2
        • 2.Sxc2#
      • 1...axb4!
    • 1.Sd4?
      • threat
        • 2.Sc2#
      • 1...Kxd4
        • 2.Qf2#
      • 1...c2
        • 2.Sxc2#
      • 1...b5
        • 2.Qe2#
      • 1...Sc4!
    • 1.Sge7?
      • threat
        • 2.Sd5#
      • 1...Kf4
        • 2.Sd5#
        • 2.Qf2#
      • 1...Bxe4
        • 2.Qf2#
      • 1...Be6
        • 2.Qf2#
      • 1...Sc4!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sd5#
      • 1...Kxf4
        • 2.Qf2#
      • 1...Bxe4
        • 2.Qe2#
      • 1...Bxf4
        • 2.Bxb6#
      • 1...Be6
        • 2.Qe2#
      • 1...Sc4
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • B(h);XP(D)::QAB1(B)
    • B(h);::QAB1(B)
    • B(h);XS(H)::QAB1(B)
    • B(j);N_GUARD::B(J),XP(i)
    • B(j);N_GUARD,P_PINP(E)::B(J),XP(i)
    • S(a);::QAR1(B)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • K(d);S_FLIGHT::QAB(B)
        • S(a);::QAB1(B)
        • P(c);::S(G),XP(c)
      • Refutation
        • P(g);XS(G)
    • Try
      • S(G);N_PINP(i)
      • Threat
        • S(G)
      • Vars
        • K(d);P_SPINP(i),S_FLIGHT,XS(G)::QAB(B)
        • P(c);::S(G),XP(c)
        • P(i);::QAR1(B)
      • Refutation
        • S(a);
    • Try
      • S(H);
      • Threat
        • S(H)
      • Vars
        • B(h);XP(D)::QAB1(B)
        • B(h);::QAB1(B)
      • Refutation
        • S(a);
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • K(d);N_SPINP(i),P_SPINB(h),S_FLIGHT,XS(H)::QAR2(B)
      • B(h);XP(D)::QAR1(B)
      • B(j);N_GUARD,P_PINP(E),SBLOCK,XS(H)::B(J),XP(i)
      • B(h);::QAR1(B)
      • S(a);::QAB1(B)
HTML5 logo

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).