MESON Chess Problem Database

Problem Display
PID: 42553 (8/1p4Kb/4Q3/1p2P1p1/1N2k3/1nR3PP/3n1Bp1/r2Nr3 w - - 0 1)

Sushkov, Yuri Akimovich

1st Prize, Vecherni Leningrad, 1983

8/1p4Kb/4Q3/1p2P1p1/1N2k3/1nR3PP/3n1Bp1/r2Nr3

#2

9 + 10

3748 FIDE Album (1983-1985) 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Bf5
      • 2.Qd5#
  • Tries
    • 1.Kf6?
      • threat
        • 2.Qg4#
        • 2.Qd5#
      • 1...Bf5
        • 2.Qd5#
        • 2.Qxf5#
      • 1...Bg8
        • 2.Qg4#
        • 2.Qf5#
      • 1...g4
        • 2.Qxg4#
        • 2.Qd5#
      • 1...Ra6!
    • 1.Bd4?
      • threat
        • 2.Qg4#
      • 1...Kxd4
        • 2.Qd5#
      • 1...Sxd4
        • 2.Sf2#
      • 1...Bf5
        • 2.Qd5#
      • 1...g4
        • 2.Qxg4#
      • 1...Rf1!
    • 1.Re3+?
      • 1...Kd4
        • 2.Rxe1#
        • 2.Re2#
        • 2.Qd5#
      • 1...Rxe3!
    • 1.Rc5?
      • threat
        • 2.Qg4#
      • 1...Kf3
        • 2.Qg4#
      • 1...Bf5
        • 2.Qd5#
      • 1...g4
        • 2.Qxg4#
      • 1...Sxc5!
  • Keys
    • 1.Rf3!
      • threat
        • 2.Qd5#
      • 1...Kxf3
        • 2.Qg4#
      • 1...Sxf3
        • 2.Sc3#
      • 1...Bg8
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(j);SBLOCK::QAB1(H)
  • Tries
    • Try
      • K(I);S_FLIGHT
      • Threat
        • DUALS(2)
      • Refutation
        • R(a);P_PINQ(H)
    • Try
      • B(B);
      • Threat
        • QAR2(H)
      • Vars
        • K(f);P-FLIGHT,XB(B)::QAR1(H)
        • S(e);SBLOCK,XB(B)::S(A)
        • B(j);SBLOCK::QAB1(H)
        • P(h);::QAR2(H),XP(h)
      • Refutation
        • R(b);
    • Try
      • R(C);CHECK
      • Refutation
        • R(b);XR(C)
    • Try
      • R(C);
      • Threat
        • QAR2(H)
      • Vars
        • K(f);S_FLIGHT::QAB1(H)
        • B(j);SBLOCK::QAB1(H)
        • P(h);::QAR2(H),XP(h)
      • Refutation
        • S(e);XR(C)
  • Actual
    • R(C);
    • Threat
      • QAB1(H)
    • Vars
      • K(f);S_FLIGHT,XR(C)::QAB1(H)
      • S(c);SBLOCK,XR(C)::S(A)
      • B(j);N_GUARD::QAB1(H)
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).