MESON Chess Problem Database
Problem Display
PID: 97307 (4R1bn/5p2/Q6n/1K2Nk1r/2p4q/2B1PPRN/8/8 w - - 0 1)
Stocchi, Ottavio
Problemi di Ottavio Stocchi, 1995
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxg3
- 2.e4#
- 1...Qg5
- 2.e4#
- 1...Qf6
- 2.e4#
- 1...Qe7
- 2.e4#
- 1...Qd8
- 2.e4#
- 1...Sg4
- 2.e4#
- 1...Qxg3
- Tries
- 1.Sg6?
- threat
- 2.Re5#
- 2.Qc8#
- 1...Qxg3
- 2.Se7#
- 2.Qf6#
- 2.e4#
- 1...Sxg6
- 2.Qc8#
- 1...fxg6
- 2.Re5#
- 1...Qg5
- 2.Re5#
- 2.e4#
- 1...Qf6
- 2.Qxf6#
- 2.e4#
- 1...Qe7
- 2.Sxe7#
- 1...Qd8
- 2.Re5#
- 2.e4#
- 1...Qe4
- 2.Qf6#
- 2.fxe4#
- 1...Qf4
- 2.Se7#
- 2.Qc8#
- 2.Qf6#
- 1...Qg4
- 2.Se7#
- 2.Re5#
- 2.Qf6#
- 1...Rg5
- 2.Sxh4#
- 2.Se7#
- 2.Re5#
- 2.Qf6#
- 1...Sg4
- 2.e4#
- 1...f6
- 2.Se7#
- 1...Qd4!
- threat
- 1.Sxf7?
- threat
- 2.Sd6#
- 2.Re5#
- 2.Qc8#
- 2.Qe6#
- 1...Qxg3
- 2.Qe6#
- 2.Qf6#
- 2.e4#
- 1...Bxf7
- 2.Re5#
- 1...S6xf7
- 2.Qc8#
- 2.Qe6#
- 1...S8xf7
- 2.Qc8#
- 2.Qe6#
- 2.Qg6#
- 1...Qd4
- 2.Qe6#
- 1...Qg5
- 2.Re5#
- 2.Qe6#
- 2.e4#
- 1...Qf6
- 2.Qxf6#
- 2.e4#
- 1...Qd8
- 2.Re5#
- 2.Qe6#
- 2.e4#
- 1...Qe4
- 2.Sd6#
- 2.Qf6#
- 2.fxe4#
- 1...Qf4
- 2.Qc8#
- 2.Qe6#
- 2.Qf6#
- 1...Qg4
- 2.Re5#
- 2.Qe6#
- 2.Qf6#
- 1...Rg5
- 2.Re5#
- 2.Qe6#
- 2.Qf6#
- 1...Sg4
- 2.Qe6#
- 2.e4#
- 1...Sg6
- 2.Sd6#
- 2.Qc8#
- 2.Qe6#
- 2.Qxg6#
- 1...Qe7!
- threat
- 1.Rg4?
- threat
- 2.e4#
- 1...Qe1
- 2.Rf4#
- 1...Qxg4!
- threat
- 1.Rg5+?
- 1...Qxg5
- 2.e4#
- 1...Rxg5!
- 1...Qxg5
- 1.Qf6+?
- 1...Qxf6
- 2.e4#
- 1...Kxf6!
- 1...Qxf6
- 1.Sg6?
- Keys
- 1.Sc6!
- threat
- 2.Qc8#
- 1...Qxg3
- 2.Sd4#
- 2.Se7#
- 1...Qg5
- 2.Sd4#
- 1...Qe7
- 2.Sxe7#
- 1...Qd4
- 2.Sxd4#
- 1...Qg4
- 2.Se7#
- 1...Rg5
- 2.Se7#
- 1...Sg4
- 2.Sd4#
- 1...Qf6
- 2.e4#
- 1...Qd8
- 2.e4#
- 1...Qe4
- 2.fxe4#
- 1...f6
- 2.Se7#
- threat
- 1.Sc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- Q(b);N_GUARD,XR(D)::P(B)
- Q(b);N_GUARD::P(B)
- S(e);S_CUTQ(b)::P(B)
- Tries
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- S(h);XS(G)::QAB(H)
- P(f);XS(G)::R1(I)
- Q(b);N_GUARD::S(G),XQ(b)
- S(e);S_CUTQ(b)::P(B)
- P(f);S_CUTQ(b)::S(G)
- Refutation
- Q(b);
- Try
- S(G);XP(f)
- Threat
- DUALS(4)
- Vars
- B(g);XS(G)::R1(I)
- Q(b);::QAB1(H)
- Refutation
- Q(b);
- Try
- R(D);
- Threat
- P(B)
- Vars
- Q(b);N_GUARD::R1(D)
- Refutation
- Q(b);XR(D)
- Try
- R(D);CHECK
- Vars
- Q(b);XR(D)::P(B)
- Refutation
- R(d);XR(D)
- Try
- Q(H);CHECK
- Vars
- Q(b);SBLOCK,XQ(H)::P(B)
- Refutation
- K(c);P-FLIGHT,P_PINS(G),XQ(H)
- Try
- Actual
- S(G);
- Threat
- QAB(H)
- Vars
- Q(b);N_GUARD::S(G)
- Q(b);N_GUARD::S(G),XQ(b)
- R(d);S_CUTQ(b)::S(G)
- S(e);S_CUTQ(b)::S(G)
- Q(b);N_GUARD::P(B)
- Q(b);OGATE::P(C),XQ(b)
- P(f);S_CUTQ(b)::S(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).