MESON Chess Problem Database
Problem Display
PID: 187050 (4n1B1/1N1bR3/3pq1pK/B5P1/2pkP2R/p3N1Q1/1bP2P2/8 w - - 0 1)
Shanshin, Valery Yurevich
2nd Prize, Belgrade Internet Ty., 2015
#2
12 + 9
| 133 | The Problemist Supplement | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.exf5#
- 1...Qxe4
- 2.Rhxe4#
- 2.Rexe4#
- 1...Bc3
- 2.Bb6#
- 1...c3
- 2.Bb6#
- 1...Qf5
- Tries
- 1.Sg4?
- threat
- 2.Qe3#
- 1...Kxe4
- 2.Se3#
- 1...Qxe4
- 2.Bb6#
- 1...c3
- 2.Qd3#
- 1...Bc1!
- threat
- 1.Sd5?
- threat
- 2.Bb6#
- 1...Qxd5
- 2.Qe3#
- 1...c3!
- threat
- 1.Sf5+?
- 1...Qxf5
- 2.Qe3#
- 2.exf5#
- 1...gxf5+!
- 1...Qxf5
- 1.c3+?
- 1...Bxc3
- 2.Sc2#
- 1...Kd3!
- 1...Bxc3
- 1.Sg4?
- Keys
- 1.Sxc4!
- threat
- 2.Qd3#
- 1...Kxc4
- 2.Qd3#
- 1...Qxc4
- 2.Qe3#
- 1...Qh3
- 2.Bb6#
- threat
- 1.Sxc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- Q(f);OGATE::R(F)+P(E),XQ(f)
- B(a);SBLOCK::B(G)
- P(c);SBLOCK::B(G)
- Tries
- Try
- S(C);
- Threat
- QAB1(D)
- Vars
- K(d);P-FLIGHT,P_SPINQ(f),XP(E)::R(F)+S(C)
- Q(f);XP(E)::B(G)
- P(c);N_GUARD::QAR1(D)
- Refutation
- B(a);P_PINP(H)
- Try
- S(C);
- Threat
- B(G)
- Vars
- Q(f);XS(C)::QAB1(D)
- Refutation
- P(c);
- Try
- S(C);CHECK
- Refutation
- P(g);CHECK,XS(C)
- Try
- P(A);CHECK
- Vars
- B(a);XP(A)::S(C)
- Refutation
- K(d);P-FLIGHT
- Try
- Actual
- S(C);XP(c)
- Threat
- QAR1(D)
- Vars
- K(d);P-FLIGHT,P_SPINQ(f),XS(C)::QAB1(D)
- Q(f);XS(C)::QAB1(D)
- Q(f);P_PINR(F)::B(G)
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).