MESON Chess Problem Database
Problem Display
PID: 155951 (KQ6/ppR5/2Nq4/5pR1/5k1P/2B5/2Bp2P1/3N4 w - - 0 1)
Kovacevic, Marjan
1st Prize, Pilchenko-60 JT (Uralski Problemist), 2012-2013
#2
10 + 6
| 56 | The Problemist | 2014 |
| 23 | Die Schwalbe | 2015 |
| 114 | Springaren | 2017 |
| 145 | StrateGems | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qa3
- 2.Be5#
- 1...Qb4
- 2.Be5#
- 1...Qe5
- 2.Bxe5#
- 1...Qxc7
- 2.Bxd2#
- 2.Qxc7#
- 1...Qe7
- 2.Rxe7#
- 1...Qf8
- 2.Bxd2#
- 2.Be5#
- 1...Qxc6
- 2.Rxc6#
- 1...Qf6
- 2.Bxd2#
- 1...Qg6
- 2.Bxd2#
- 2.Be5#
- 1...Qh6
- 2.Bxd2#
- 2.Be5#
- 1...Qd7
- 2.Be5#
- 2.Rxd7#
- 1...Qd8
- 2.Be5#
- 1...Qa3
- Tries
- 1.Sb4?
- threat
- 2.Rc4#
- 1...Qxc7
- 2.Sd5#
- 2.Qxc7#
- 1...Qc5
- 2.Rxc5#
- 1...Qc6
- 2.Rxc6#
- 1...b5!
- threat
- 1.Sa5?
- threat
- 2.Rc4#
- 1...Qxc7
- 2.Qxc7#
- 1...Qc5
- 2.Rxc5#
- 1...Qc6
- 2.Rxc6#
- 1...b5!
- threat
- 1.Se5?
- threat
- 2.g3#
- 1...Qxe5
- 2.Rc4#
- 1...Qd4
- 2.Sg6#
- 1...Qd3!
- threat
- 1.Sxa7?
- threat
- 2.Rc4#
- 1...Qxc7
- 2.Qxc7#
- 1...Qc5
- 2.Rxc5#
- 1...Qc6
- 2.Rxc6#
- 1...b5!
- threat
- 1.Se7?
- threat
- 2.Rc4#
- 1...Qxc7
- 2.Sd5#
- 2.Sg6#
- 2.Qxc7#
- 1...Qc5
- 2.Sg6#
- 2.Rxc5#
- 1...Qc6
- 2.Rxc6#
- 1...b5!
- threat
- 1.Sd8?
- threat
- 2.Rc4#
- 1...Qxc7
- 2.Se6#
- 2.Qxc7#
- 1...Qc5
- 2.Se6#
- 2.Rxc5#
- 1...Qc6
- 2.Rxc6#
- 1...b5!
- threat
- 1.Rxb7?
- threat
- 2.Bxd2#
- 2.Rb4#
- 2.Qxd6#
- 1...Qe5
- 2.Bxd2#
- 2.Bxe5#
- 2.Rb4#
- 2.Qxe5#
- 1...Qc7
- 2.Bxd2#
- 2.Rb4#
- 2.Qxc7#
- 1...a5
- 2.Bxd2#
- 2.Qxd6#
- 1...Qxb8+!
- threat
- 1.Rd7?
- threat
- 2.Bxd2#
- 2.Qxd6#
- 1...bxc6
- 2.Qxd6#
- 1...Qe5
- 2.Bxd2#
- 2.Bxe5#
- 2.Rd4#
- 2.Qxe5#
- 1...Qc7
- 2.Bxd2#
- 2.Rd4#
- 2.Qxc7#
- 1...Qxb8+!
- threat
- 1.Re7?
- threat
- 2.Bxd2#
- 2.Qxd6#
- 1...Qe5
- 2.Bxd2#
- 2.Bxe5#
- 2.Qxe5#
- 1...Qc7
- 2.Bxd2#
- 2.Qxc7#
- 1...Qxb8+!
- threat
- 1.Rf7?
- threat
- 2.Bxd2#
- 2.Rfxf5#
- 2.Qxd6#
- 1...bxc6
- 2.Rfxf5#
- 2.Qxd6#
- 1...Qe5
- 2.Bxd2#
- 2.Bxe5#
- 2.Rfxf5#
- 2.Qxe5#
- 1...Qc7
- 2.Bxd2#
- 2.Rfxf5#
- 2.Qxc7#
- 1...Qxb8+!
- threat
- 1.Rcg7?
- threat
- 2.Bxd2#
- 2.Rxf5#
- 2.Qxd6#
- 1...bxc6
- 2.Rxf5#
- 2.Qxd6#
- 1...Qe5
- 2.Bxd2#
- 2.Bxe5#
- 2.Rxf5#
- 2.Qxe5#
- 1...Qc7
- 2.Bxd2#
- 2.Rxf5#
- 2.Qxc7#
- 1...Qxb8+!
- threat
- 1.Rh7?
- threat
- 2.Bxd2#
- 2.Qxd6#
- 1...bxc6
- 2.Qxd6#
- 1...Qe5
- 2.Bxd2#
- 2.Bxe5#
- 2.Qxe5#
- 1...Qc7
- 2.Bxd2#
- 2.Qxc7#
- 1...Qxb8+!
- threat
- 1.Rc8?
- threat
- 2.Bxd2#
- 2.Qxd6#
- 1...bxc6
- 2.Qxd6#
- 1...Qe5
- 2.Bxd2#
- 2.Bxe5#
- 2.Qxe5#
- 1...Qc7
- 2.Bxd2#
- 2.Qxc7#
- 1...Qxb8+!
- threat
- 1.Sb4?
- Keys
- 1.Sd4!
- threat
- 2.Se2#
- 1...Ke5
- 2.Rxf5#
- 1...Qxd4
- 2.Rc4#
- 1...Qe5
- 2.g3#
- 1...Qe7
- 2.Rxe7#
- 1...Qa6
- 2.Rc6#
- 1...Qe6
- 2.Sxe6#
- threat
- 1.Sd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- Q(d);N_GUARD::B(D)
- Q(d);N_GUARD::B(D),XQ(d)
- Q(d);OGATEB::QAB(J)+R(H),XQ(d)
- Q(d);OGATE,XS(G)::QAB(J)+R(H),XQ(d)
- Q(d);N_GUARD::B(D),XP(a)
- Q(d);N_GUARD,P_PINQ(J)::B(D)
- Tries
- Try
- S(G);
- Threat
- R(H)
- Vars
- Q(d);OGATEB::QAB(J)+R(H),XQ(d)
- Refutation
- P(f);
- Try
- S(G);
- Threat
- R(H)
- Vars
- Q(d);OGATE,P_SPINQ(d),XR(H)::QAB(J),XQ(d)
- Q(d);OGATEB::QAB(J)+R(H),XQ(d)
- Refutation
- P(f);
- Try
- S(G);
- Threat
- P(C)
- Vars
- Q(d);N_GUARD,XS(G)::R(H)
- Q(d);N_GUARD::S(G)
- Refutation
- Q(d);
- Try
- S(G);XP(e)
- Threat
- R(H)
- Vars
- Q(d);OGATE,P_SPINQ(d),XR(H)::QAB(J),XQ(d)
- Q(d);OGATEB::QAB(J)+R(H),XQ(d)
- Refutation
- P(f);
- Try
- S(G);
- Threat
- R(H)
- Vars
- Q(d);OGATEB::QAB(J)+R(H),XQ(d)
- Refutation
- P(f);
- Try
- S(G);
- Threat
- R(H)
- Vars
- Q(d);OGATEB::QAB(J)+R(H),XQ(d)
- Refutation
- P(f);
- Try
- R(H);P_PINQ(d),XP(f)
- Threat
- DUALS(3)
- Refutation
- Q(d);CHECK,N_SPINQ(d),XQ(J)
- Try
- R(H);P_PINQ(d)
- Threat
- DUALS(2)
- Vars
- P(f);XS(G)::QAB(J),XQ(d)
- Refutation
- Q(d);CHECK,N_SPINQ(d),XQ(J)
- Try
- R(H);P_PINQ(d)
- Threat
- DUALS(2)
- Refutation
- Q(d);CHECK,N_SPINQ(d),XQ(J)
- Try
- R(H);P_PINP(c),P_PINQ(d)
- Threat
- DUALS(3)
- Refutation
- Q(d);CHECK,N_SPINQ(d),XQ(J)
- Try
- R(H);P_PINQ(d)
- Threat
- DUALS(3)
- Refutation
- Q(d);CHECK,N_SPINQ(d),XQ(J)
- Try
- R(H);P_PINQ(d)
- Threat
- DUALS(2)
- Vars
- P(f);XS(G)::QAB(J),XQ(d)
- Refutation
- Q(d);CHECK,N_SPINQ(d),XQ(J)
- Try
- R(H);P_PINQ(d)
- Threat
- DUALS(2)
- Vars
- P(f);XS(G)::QAB(J),XQ(d)
- Refutation
- Q(d);CHECK,N_SPINQ(d),XQ(J)
- Try
- Actual
- S(G);
- Threat
- S(G)
- Vars
- K(b);P_SPINP(c),S_FLIGHT::R1(F),XP(c)
- Q(d);OGATEB,XS(G)::QAB(J)+R(H)
- Q(d);SBLOCK::P(C)
- Q(d);OGATEB::QAB(J)+R(H),XQ(d)
- Q(d);OGATEB::QAB(J)+R(H)
- Q(d);N_GUARD::S(G),XQ(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).