MESON Chess Problem Database
Problem Display
PID: 78147 (4R3/5q2/3p4/1b1NR3/1Kpk4/2p5/Q5NB/bB4nr w - - 0 1)
Gvozdjak, Peter
2nd HM., Pravda, 1990
#2
8 + 9
| 3335 | Cyclone | 2000 |
| 23 | Die Schwalbe | 2007 |
| 5454 | Near Snap | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Qxd5
- 2.Qf2#
- 1...Qh5
- 2.Qf2#
- 2.Qa7#
- 1...Qe6
- 2.Qf2#
- 2.Qa7#
- 1...Qg6
- 2.Qf2#
- 2.Qa7#
- 1...Qxe8
- 2.Qf2#
- 2.Qa7#
- 1...Qg8
- 2.Qf2#
- 2.Qa7#
- 1...Qf1
- 2.Qa7#
- 1...Qf2
- 2.Qxf2#
- 2.Qa7#
- 1...Qf3
- 2.Qa7#
- 1...Qf4
- 2.Qa7#
- 1...Qf5
- 2.Qa7#
- 1...Qf6
- 2.Qa7#
- 1...Qa7
- 2.Qf2#
- 2.Qxa7#
- 1...Qb7
- 2.Qf2#
- 1...Qc7
- 2.Qf2#
- 1...Qd7
- 2.Qf2#
- 1...Qe7
- 2.Qf2#
- 1...Qg7
- 2.Qf2#
- 1...Qh7
- 2.Qf2#
- 1...Qf8
- 2.Qa7#
- 1...Ba4
- 2.Qxc4#
- 1...Bc6
- 2.Qxc4#
- 1...Bd7
- 2.Qxc4#
- 2.Qa7#
- 1...Bxe8
- 2.Qxc4#
- 1...Sf3
- 2.Qf2#
- 1...Qxd5
- Tries
- 1.Sxc3?
- threat
- 2.Sxb5#
- 2.Re4#
- 2.Qd2#
- 1...Qxe8
- 2.Rd5#
- 2.Qd2#
- 2.Qf2#
- 2.Qa7#
- 1...Bxe8
- 2.Re4#
- 2.Qd2#
- 1...dxe5
- 2.Bxe5#
- 2.Qd2#
- 1...Qd5
- 2.Rxd5#
- 2.Qd2#
- 2.Qf2#
- 1...Qe6
- 2.Sxb5#
- 2.Qd2#
- 2.Qf2#
- 2.Qa7#
- 1...Qg6
- 2.Sxb5#
- 2.Rd5#
- 2.Qf2#
- 2.Qa7#
- 1...Qf1
- 2.Sxb5#
- 2.Re4#
- 2.Rd5#
- 2.Qa7#
- 1...Qf2
- 2.Sxb5#
- 2.Re4#
- 2.Rd5#
- 2.Qxf2#
- 2.Qa7#
- 1...Qf3
- 2.Sxb5#
- 2.Qa7#
- 1...Qf4
- 2.Sxb5#
- 2.Rd5#
- 2.Qa7#
- 1...Qf5
- 2.Sxb5#
- 2.Qa7#
- 1...Qb7
- 2.Qd2#
- 2.Qf2#
- 1...Qd7
- 2.Re4#
- 2.Rd5#
- 2.Qd2#
- 2.Qf2#
- 1...Qe7
- 2.Sxb5#
- 2.Rd5#
- 2.Qd2#
- 2.Qf2#
- 1...Qh7
- 2.Sxb5#
- 2.Rd5#
- 2.Qf2#
- 1...Bb2
- 2.Sxb5#
- 2.Re4#
- 1...Ba4
- 2.Re4#
- 2.Qd2#
- 1...Ba6
- 2.Re4#
- 2.Qd2#
- 1...Bc6
- 2.Qd2#
- 1...Bd7
- 2.Re4#
- 2.Qd2#
- 2.Qa7#
- 1...Sf3
- 2.Se2#
- 2.Sxb5#
- 2.Re4#
- 2.Qf2#
- 1...d5
- 2.Sxb5#
- 2.Qd2#
- 1...Bxc3+!
- threat
- 1.Sf6?
- threat
- 2.Re4#
- 2.Qf2#
- 1...Qxe8
- 2.Rd5#
- 2.Qf2#
- 2.Qa7#
- 1...Qxf6
- 2.Qa7#
- 1...dxe5
- 2.Bxe5#
- 2.Qf2#
- 1...Qd5
- 2.Rxd5#
- 2.Qf2#
- 1...Qe6
- 2.Qf2#
- 2.Qa7#
- 1...Qg6
- 2.Rd5#
- 2.Qf2#
- 2.Qa7#
- 1...Qb7
- 2.Qf2#
- 1...Qe7
- 2.Rd5#
- 2.Qf2#
- 1...Qh7
- 2.Rd5#
- 2.Qf2#
- 1...Bb2
- 2.Re4#
- 1...Bc6
- 2.Qf2#
- 1...Se2
- 2.Re4#
- 1...Sh3
- 2.Re4#
- 1...d5
- 2.Qf2#
- 1...c2!
- threat
- 1.Sc7?
- threat
- 2.Sxb5#
- 2.Re4#
- 2.Qa7#
- 1...Qxe8
- 2.Rd5#
- 2.Qf2#
- 2.Qa7#
- 1...Qxc7
- 2.Qf2#
- 1...Bxe8
- 2.Re4#
- 2.Qa7#
- 1...dxe5
- 2.Bxe5#
- 2.Qa7#
- 1...Qd5
- 2.Rxd5#
- 2.Qf2#
- 1...Qe6
- 2.Sxb5#
- 2.Sxe6#
- 2.Qf2#
- 2.Qa7#
- 1...Qg6
- 2.Sxb5#
- 2.Rd5#
- 2.Qf2#
- 2.Qa7#
- 1...Qf3
- 2.Sxb5#
- 2.Se6#
- 2.Qa7#
- 1...Qf4
- 2.Sxb5#
- 2.Rd5#
- 2.Qa7#
- 1...Qf5
- 2.Sxb5#
- 2.Qa7#
- 1...Qd7
- 2.Re4#
- 2.Rd5#
- 2.Qf2#
- 2.Qa7#
- 1...Qe7
- 2.Sxb5#
- 2.Rd5#
- 2.Qf2#
- 2.Qa7#
- 1...Qh7
- 2.Sxb5#
- 2.Se6#
- 2.Rd5#
- 2.Qf2#
- 2.Qa7#
- 1...Ba4
- 2.Re4#
- 1...Ba6
- 2.Re4#
- 1...Bc6
- 2.Qa7#
- 1...Bd7
- 2.Re4#
- 2.Qa7#
- 1...d5
- 2.Sxb5#
- 2.Qa7#
- 1...c2!
- threat
- 1.Se7?
- threat
- 2.Re4#
- 2.Qa7#
- 1...Qxe7
- 2.Qf2#
- 1...Rxh2
- 2.Re4#
- 1...dxe5
- 2.Qa7#
- 1...Qf4
- 2.Rd5#
- 1...Qd5
- 2.Sf5#
- 2.Rxd5#
- 2.Qf2#
- 1...Qe6
- 2.Qf2#
- 2.Qa7#
- 1...Qg6
- 2.Rd5#
- 2.Qf2#
- 2.Qa7#
- 1...Qf3
- 2.Qa7#
- 1...Qf5
- 2.Sxf5#
- 2.Qa7#
- 1...Qh7
- 2.Rd5#
- 2.Qf2#
- 2.Qa7#
- 1...Ba4
- 2.Re4#
- 1...Ba6
- 2.Sc6#
- 2.Re4#
- 1...Bc6
- 2.Sxc6#
- 2.Qa7#
- 1...d5
- 2.Qa7#
- 1...c2!
- threat
- 1.Bxg1+?
- 1...Qf2
- 2.Bxf2#
- 2.Qxf2#
- 2.Qa7#
- 1...Rxg1!
- 1...Qf2
- 1.Sxc3?
- Keys
- 1.Sdf4!
- threat
- 2.Re4#
- 2.Qf2#
- 1...Qxe8
- 2.Rd5#
- 1...Qxf4
- 2.Qa7#
- 1...Bxe8
- 2.Re4#
- 1...dxe5
- 2.Qf2#
- 1...Qe6
- 2.Sxe6#
- 1...Qe7
- 2.Rd5#
- 1...Qd5
- 2.Rxd5#
- 2.Qf2#
- 1...Qg6
- 2.Rd5#
- 2.Qf2#
- 2.Qa7#
- 1...Qf5
- 2.Qf2#
- 2.Qa7#
- 1...Qb7
- 2.Se6#
- 2.Qf2#
- 1...Qh7
- 2.Se6#
- 2.Rd5#
- 2.Qf2#
- 1...Bb2
- 2.Re4#
- 1...Bc6
- 2.Qf2#
- 1...Se2
- 2.Sxe2#
- 2.Re4#
- 1...Sh3
- 2.Se2#
- 2.Re4#
- 1...c2
- 2.Re4#
- 1...d5
- 2.Qf2#
- threat
- 1.Sdf4!
This anticipates 75315(1999-2000)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 6
- REMOVED MATES = 13
- Sets
- Q(i);N_GUARD,XS(F)::QAB(B)
- Q(i);N_GUARD::QAB(B)
- B(g);N_GUARD::QAR1(B),XP(e)
- B(g);N_GUARD,XR(H)::QAR1(B),XP(e)
- S(b);S_CUTQ(i)::QAB(B)
- Tries
- Try
- S(F);XP(d)
- Threat
- DUALS(3)
- Vars
- B(g);::QAR2(B)
- Refutation
- B(a);CHECK,XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(i);N_GUARD,XS(F)::QAB(B)
- Q(i);::QAB(B)
- B(a);::R1(G)
- B(g);::QAB(B)
- S(b);::R1(G)
- P(h);::QAB(B)
- Refutation
- P(d);
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- Q(i);N_GUARD,XS(F)::QAB(B)
- B(g);::R1(G)
- B(g);::QAB(B)
- Refutation
- P(d);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(i);N_GUARD,XS(F)::QAB(B)
- R(c);XB(D)::R1(G)
- P(h);XR(G)::QAB(B)
- Q(i);N_GUARD::R1(G)
- Q(i);::QAB(B)
- B(g);::R1(G)
- P(h);::QAB(B)
- Refutation
- P(d);
- Try
- B(D);CHECK,XS(b)
- Refutation
- R(c);XB(D)
- Try
- Actual
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(i);N_GUARD,XR(H)::R1(G)
- Q(i);N_GUARD,XS(F)::QAB(B)
- B(g);XR(H)::R1(G)
- P(h);XR(G)::QAB(B)
- Q(i);N_GUARD::S(F),XQ(i)
- Q(i);N_GUARD::R1(G)
- B(a);::R1(G)
- B(g);::QAB(B)
- P(d);::R1(G)
- P(h);::QAB(B)
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).