MESON Chess Problem Database
Problem Display
PID: 259675 (8/3Q1p2/5B2/3N4/1K2k3/1p3qR1/1P3R1P/8 w - - 0 1)
Sacconi, Antonio
L'Italia Scacchistica, 1918
#2
8 + 4
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Kd3
- 2.Qf5#
- 1...Qd1
- 2.Sc3#
- 2.Rf4#
- 2.Re3#
- 2.Qf5#
- 1...Qh1
- 2.Sc3#
- 2.Re2#
- 2.Rf4#
- 2.Re3#
- 2.Qf5#
- 1...Qe2
- 2.Sc3#
- 2.Rxe2#
- 2.Rf4#
- 2.Qf5#
- 1...Qg2
- 2.Sc3#
- 2.Rf4#
- 2.Re3#
- 2.Qf5#
- 1...Qg4
- 2.Sc3#
- 2.Re3#
- 1...Qh5
- 2.Sc3#
- 2.Rf4#
- 2.Re3#
- 1...Qc3+
- 2.Sxc3#
- 1...Qd3
- 2.Rf4#
- 2.Rg4#
- 2.Qf5#
- 1...Qe3
- 2.Rxe3#
- 2.Qf5#
- 1...Qxg3
- 2.Qf5#
- 1...Qf4
- 2.Sc3#
- 2.Rxf4#
- 1...Qf5
- 2.Sc3#
- 2.Re2#
- 2.Re3#
- 2.Qxf5#
- 1...Kd3
- Tries
- 1.Kc5?
- 1...Qc3+
- 2.Sxc3#
- 1...Qe3+
- 2.Rxe3#
- 1...Kd3
- 2.Qf5#
- 1...Qxg3
- 2.Qf5#
- 1...Qxf6
- 2.Re2#
- 2.Re3#
- 1...Qd1
- 2.Sc3#
- 2.Rf4#
- 2.Re3#
- 2.Qf5#
- 2.Qe8#
- 2.Qe7#
- 1...Qh1
- 2.Sc3#
- 2.Re2#
- 2.Rf4#
- 2.Re3#
- 2.Qa4#
- 2.Qg4#
- 2.Qf5#
- 2.Qe8#
- 2.Qe7#
- 1...Qe2
- 2.Sc3#
- 2.Rxe2#
- 2.Rf4#
- 2.Qf5#
- 2.Qe8#
- 2.Qe7#
- 1...Qg2
- 2.Sc3#
- 2.Rf4#
- 2.Re3#
- 2.Qa4#
- 2.Qg4#
- 2.Qf5#
- 2.Qe8#
- 2.Qe7#
- 1...Qg4
- 2.Sc3#
- 2.Re3#
- 2.Qa4#
- 2.Qxg4#
- 1...Qh5
- 2.Rf4#
- 2.Re3#
- 2.Qa4#
- 1...Qd3
- 2.Rf4#
- 2.Rg4#
- 2.Qg4#
- 2.Qf5#
- 2.Qe8#
- 2.Qe7#
- 1...Qf4
- 2.Sc3#
- 2.Rxf4#
- 1...Qf5
- 2.Re2#
- 2.Re3#
- 2.Qa4#
- 2.Qxf5#
- 1...Qxf2+!
- 1...Qc3+
- 1.Sc3+?
- 1...Ke3
- 2.Rfxf3#
- 2.Rgxf3#
- 2.Qd2#
- 2.Qd4#
- 1...Kf4
- 2.Rfxf3#
- 2.Rgxf3#
- 1...Qxc3+!
- 1...Ke3
- 1.Re2+?
- 1...Kd3
- 2.Sc3#
- 2.Sf4#
- 2.Qb5#
- 1...Qe3
- 2.Rexe3#
- 2.Rgxe3#
- 1...Qxe2!
- 1...Kd3
- 1.Qg4+?
- 1...Kd3
- 2.Rgxf3#
- 2.Qxf3#
- 2.Qf5#
- 2.Qc4#
- 2.Qd4#
- 1...Qxg4
- 2.Sc3#
- 1...Qf4
- 2.Sc3#
- 1...Kxd5!
- 1...Kd3
- 1.Qf5+?
- 1...Qxf5
- 2.Sc3#
- 1...Kxf5!
- 1...Qxf5
- 1.Qe6+?
- 1...Kd3
- 2.Sf4#
- 2.Rgxf3#
- 2.Qf5#
- 2.Qe2#
- 1...fxe6!
- 1...Kd3
- 1.Qe8+?
- 1...Kd3
- 2.Sf4#
- 2.Rgxf3#
- 2.Qe2#
- 1...Kf5
- 2.Rfxf3#
- 2.Rg5#
- 2.Qe5#
- 1...Kxd5!
- 1...Kd3
- 1.Qe7+?
- 1...Kd3
- 2.Sf4#
- 2.Rgxf3#
- 2.Qe2#
- 1...Kf5
- 2.Rfxf3#
- 2.Rg5#
- 2.Qe5#
- 1...Kxd5!
- 1...Kd3
- 1.Kc5?
- Keys
- 1.Se3!
- threat
- 2.Qd4#
- 1...Kxe3
- 2.Qd4#
- 1...Kf4
- 2.Qd4#
- 1...Qxe3
- 2.Qf5#
- 1...Qxf6
- 2.Qd5#
- 1...Qd1
- 2.Qf5#
- threat
- 1.Se3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 3
- Sets
- K(c);N_GUARD,P_SPINQ(b),S_FLIGHT::QAB(H)
- Q(b);CHECK,N_GUARD::S(F),XQ(b)
- Q(b);N_GUARD,XR(D)::QAB1(H)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- Q(b);CHECK,N_GUARD::S(F),XQ(b)
- Q(b);CHECK,OGATE::R1(D),XQ(b)
- K(c);N_GUARD,P_SPINQ(b),S_FLIGHT::QAB(H)
- Q(b);N_GUARD,XR(D)::QAB1(H)
- Refutation
- Q(b);CHECK,XR(B)
- Try
- S(F);CHECK
- Refutation
- Q(b);CHECK,XS(F)
- Try
- R(B);CHECK
- Refutation
- Q(b);XR(B)
- Try
- Q(H);CHECK
- Vars
- Q(b);XQ(H)::S(F)
- Q(b);P_SPINQ(b)::S(F)
- Refutation
- K(c);S_FLIGHT,XS(F)
- Try
- Q(H);CHECK
- Vars
- Q(b);XQ(H)::S(F)
- Refutation
- K(c);P_SPINQ(b),S_FLIGHT,XQ(H)
- Try
- Q(H);CHECK
- Refutation
- P(d);XQ(H)
- Try
- Q(H);CHECK
- Refutation
- K(c);S_FLIGHT,XS(F)
- Try
- Q(H);CHECK
- Refutation
- K(c);S_FLIGHT,XS(F)
- Try
- Actual
- S(F);
- Threat
- QAR1(H)
- Vars
- K(c);P-FLIGHT,P_SPINQ(b),XS(F)::QAB1(H)
- K(c);P-FLIGHT,P_SPINQ(b)::QAR2(H)
- Q(b);N_GUARD,XS(F)::QAB1(H)
- Q(b);XB(G)::QAB1(H)
- Q(b);N_GUARD::QAB1(H)
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).