MESON Chess Problem Database
Problem Display
PID: 244596 (5R2/8/Q5q1/3ppN1p/RNnnk3/1p2Ppp1/1Pp1P1B1/K1B4b w - - 0 1)
Fasano, Alessandro
L'Italia Scacchistica, 2005
#2
11 + 12
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qf7
- 2.Sxg3#
- 1...Qh7
- 2.Sxg3#
- 1...Qe8
- 2.Sxg3#
- 1...Qxa6
- 2.Sxg3#
- 1...Qb6
- 2.Sxg3#
- 1...Qc6
- 2.Sxg3#
- 1...Qd6
- 2.Sxg3#
- 1...Qe6
- 2.Sxg3#
- 1...Qf6
- 2.Sxg3#
- 1...Qh6
- 2.Sxg3#
- 1...Sd2
- 2.Qd3#
- 1...Sa3
- 2.Qd3#
- 1...Sa5
- 2.Qd3#
- 1...Sb6
- 2.Qd3#
- 1...Sd6
- 2.Qd3#
- 1...Sb5
- 2.exf3#
- 1...Sxf5
- 2.exf3#
- 1...Sc6
- 2.exf3#
- 1...Se6
- 2.exf3#
- 1...Qf7
- Tries
- 1.Sd6+?
- 1...Sxd6
- 2.Qd3#
- 1...Qxd6!
- 1...Sxd6
- 1.Qxc4?
- threat
- 2.Qd3#
- 2.Qxd5#
- 2.exf3#
- 1...Qxf5
- 2.Qd3#
- 2.Qxd5#
- 1...Bxg2
- 2.Qd3#
- 2.Qxd5#
- 1...fxg2
- 2.Qd3#
- 2.Qxd5#
- 1...Qf7
- 2.Sxg3#
- 2.Sd6#
- 2.Qd3#
- 1...Qf6
- 2.Sxg3#
- 2.Qd3#
- 1...Qg4
- 2.Sd6#
- 2.Qd3#
- 2.Qxd5#
- 1...Qa6
- 2.Sxg3#
- 2.Qxd5#
- 2.exf3#
- 1...Qc6
- 2.Sxg3#
- 2.Qd3#
- 2.exf3#
- 1...Qd6
- 2.Sxg3#
- 2.Sxd6#
- 2.Qd3#
- 2.exf3#
- 1...Qe6
- 2.Sxg3#
- 2.Qd3#
- 2.exf3#
- 1...Qg8
- 2.Sd6#
- 2.Qd3#
- 2.exf3#
- 1...dxc4!
- threat
- 1.Qe6?
- threat
- 2.Qxd5#
- 1...Qxe6
- 2.Sxg3#
- 1...Sxe3
- 2.Sd6#
- 1...Sxe6
- 2.exf3#
- 1...Qf7
- 2.Sxg3#
- 1...Qf6
- 2.Sxg3#
- 1...Sb6
- 2.Sd6#
- 1...Qg8!
- threat
- 1.Qxg6?
- threat
- 2.Sxg3#
- 2.Sxd4#
- 2.Sd6#
- 1...Sxe3
- 2.Sxg3#
- 2.Sd6#
- 1...Sxe2
- 2.Sxg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 2.Sh6#
- 2.Se7#
- 2.Sg7#
- 1...Sxf5
- 2.Qxf5#
- 2.exf3#
- 1...Sd6
- 2.Sxg3#
- 2.Sxd6#
- 1...Sb5
- 2.Sxg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 2.Sh6#
- 2.Se7#
- 2.Sg7#
- 2.exf3#
- 1...Sc6
- 2.Sxg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 2.Sh6#
- 2.Se7#
- 2.Sg7#
- 2.exf3#
- 1...Se6
- 2.Sxg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 2.Sh6#
- 2.Se7#
- 2.Sg7#
- 2.exf3#
- 1...Sd2!
- threat
- 1.Sd6+?
- Keys
- 1.Sd3!
- threat
- 2.Sc5#
- 1...Sxe3
- 2.exf3#
- 1...Qf7
- 2.Sxg3#
- 1...Qf6
- 2.Sxg3#
- 1...Qb6
- 2.Sxg3#
- 1...Qc6
- 2.Sxg3#
- 1...Qd6
- 2.Sxg3#
- 1...Se6
- 2.Sd6#
- threat
- 1.Sd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 13
- Sets
- Q(l);N_GUARD::S(I),XP(e)
- Q(l);N_GUARD,P_PINR(G),XQ(J)::S(I),XP(e)
- S(f);OGATE::QAB1(J)
- S(g);N_GUARD::P(D),XP(d)
- S(g);N_GUARD,XS(I)::P(D),XP(d)
- Tries
- Try
- S(I);CHECK
- Vars
- S(f);OGATE,XS(I)::QAB1(J)
- Refutation
- Q(l);XS(I)
- Try
- Q(J);P_PINS(g),XS(f)
- Threat
- DUALS(3)
- Refutation
- P(i);N_SPINS(g),XQ(J)
- Try
- Q(J);
- Threat
- QAB1(J),XP(i)
- Vars
- Q(l);N_GUARD,XQ(J)::S(I),XP(e)
- S(f);N_GUARD,XP(F)::S(I)
- S(g);N_GUARD,XQ(J)::P(D),XP(d)
- Q(l);N_GUARD::S(I),XP(e)
- S(f);N_GUARD::S(I)
- Refutation
- Q(l);
- Try
- Q(J);XQ(l)
- Threat
- DUALS(3)
- Refutation
- S(f);
- Try
- Actual
- S(H);
- Threat
- S(H)
- Vars
- S(f);P_SPINS(g),XP(F)::P(D),XP(d)
- Q(l);N_GUARD::S(I),XP(e)
- S(g);P_SPINS(f),S_CUTQ(l)::S(I)
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).