MESON Chess Problem Database
Problem Display
PID: 190873 (7q/3p2pb/r2Bp3/p4Q1r/KpkN4/1pp2p2/8/3R4 w - - 0 1)
Udartsev, Valentin Filipovich
Suomen Shakki, 1983
#2
5 + 13
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Qb5#
- 2.Qc5#
- 1...Rh2
- 2.Qb5#
- 2.Qc5#
- 1...Rh3
- 2.Qb5#
- 2.Qc5#
- 1...Rh4
- 2.Qb5#
- 2.Qc5#
- 1...Rh6
- 2.Qb5#
- 2.Qc5#
- 1...e5
- 2.Qf7#
- 1...g5
- 2.Qb5#
- 2.Qc5#
- 1...Rh1
- Tries
- 1.Sc2?
- threat
- 2.Se3#
- 2.Rd4#
- 1...Rxd6
- 2.Se3#
- 1...Rh4
- 2.Se3#
- 2.Qb5#
- 2.Qc5#
- 1...e5
- 2.Se3#
- 2.Qf7#
- 1...g5
- 2.Se3#
- 2.Qb5#
- 2.Qc5#
- 1...g6
- 2.Se3#
- 2.Qd3#
- 1...bxc2!
- threat
- 1.Sxb3?
- threat
- 2.Rd4#
- 1...Rxd6
- 2.Sxa5#
- 1...Rh4
- 2.Qb5#
- 2.Qc5#
- 1...e5
- 2.Qf7#
- 1...g5
- 2.Qb5#
- 2.Qc5#
- 1...g6
- 2.Qd3#
- 1...c2!
- threat
- 1.Sc2?
- Keys
- 1.Sb5!
- threat
- 2.Rd4#
- 1...Rxd6
- 2.Sxd6#
- 1...Rh4
- 2.Qc5#
- 1...e5
- 2.Qf7#
- 1...g5
- 2.Qc5#
- 1...g6
- 2.Qd3#
- threat
- 1.Sb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- P(i);OGATEB::QAB(D)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(h);XB(E)::S(C)
- Refutation
- P(a);XS(C)
- Try
- S(C);XP(a)
- Threat
- R1(A)
- Vars
- R(h);N_GUARD,XB(E)::S(C),XP(f)
- P(i);OGATEB::QAB(D)
- P(k);S_CUTB(l)::QAB1(D)
- Refutation
- P(b);
- Try
- Actual
- S(C);
- Threat
- R1(A)
- Vars
- R(h);XB(E)::S(C),XR(h)
- R(g);N_GUARD::QAR1(D)
- P(i);OGATEB::QAB(D)
- P(k);S_CUTR(g)::QAR1(D)
- P(k);S_CUTB(l)::QAB1(D)
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).