MESON Chess Problem Database
Problem Display
PID: 45251 (2R5/P2N3B/1r2N2q/1RPkP2r/p4nP1/2Q2p2/K3p3/8 w - - 0 1)
Stocchi, Ottavio
1st Prize, AP Italiana, 1958
#2
11 + 8
| 3976 | FIDE Album (1956-1958) | 1961 |
| 5407 | Selected Stocchi (II) | 2004 |
| 14475 | Mat Plus Review | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Qg7
- 2.Sxf4#
- 1...Qxe6
- 2.cxb6#
- 1...Rg5
- 2.Sxf4#
- 1...Rxe6
- 2.c6#
- 1...Sxe6
- 2.Sxb6#
- 1...a3
- 2.Qb3#
- 1...Qg7
- Tries
- 1.Be4+?
- 1...Kxe4
- 2.Qd4#
- 1...Kxe6!
- 1...Kxe4
- 1.Bf5?
- threat
- 2.Sxb6#
- 2.Qd4#
- 2.cxb6#
- 1...Qxe6
- 2.cxb6#
- 1...Rxb5
- 2.Qd4#
- 1...Rxe6
- 2.c6#
- 1...Sxe6
- 2.Sxb6#
- 1...Qf8
- 2.Sxf4#
- 2.Sxb6#
- 2.Qd4#
- 1...Ra6
- 2.Qd4#
- 2.c6#
- 1...Rc6
- 2.Qd4#
- 1...Rd6
- 2.Qd4#
- 2.cxd6#
- 2.c6#
- 1...Rb7
- 2.Qd4#
- 1...Rb8
- 2.Qd4#
- 1...Sd3
- 2.Sxb6#
- 2.Qd4#
- 2.Qxd3#
- 1...Rxf5!
- threat
- 1.Rxb6?
- threat
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...Rxe5
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...e1Q
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...e1S
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...e1B
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...e1R
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...Qg5
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...Qg7
- 2.Sxf4#
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...Qf8
- 2.Sc7#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...Qf6
- 2.Sc7#
- 2.Sxf6#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...Rh1
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...Rh2
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...Rh3
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...Rh4
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...Rg5
- 2.Sxf4#
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...Sg2
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Sd3
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.Qxd3#
- 2.a8Q#
- 2.a8B#
- 1...Sh3
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...f2
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.a8Q#
- 2.a8B#
- 1...a3
- 2.Sc7#
- 2.Rd6#
- 2.Qd4#
- 2.Qb3#
- 2.a8Q#
- 2.a8B#
- 1...Qxe6!
- threat
- 1.c6+?
- 1...Rxb5
- 2.Sc7#
- 1...Kxe6!
- 1...Rxb5
- 1.Be4+?
- Keys
- 1.Bg8!
- threat
- 2.Qd4#
- 1...Ke4
- 2.Qd4#
- 1...Qxe6
- 2.Sf6#
- 1...Rxe6
- 2.a8Q#
- 2.a8B#
- 1...Sxe6
- 2.Qd3#
- threat
- 1.Bg8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- Q(h);N_GUARD::S(G),XS(d)
- Q(h);SBLOCK,XS(G)::R(D)+P(E),XR(g)
- R(f);S_CUTQ(h)::S(G),XS(d)
- R(g);N_GUARD,SBLOCK,XS(G)::R(D)+P(E)
- S(d);SBLOCK,XS(G)::S(I),XR(g)
- P(c);N_GUARD::QAB(B)
- Tries
- Try
- B(J);CHECK
- Vars
- K(e);S_FLIGHT,XB(J)::QAR1(B)
- Refutation
- K(e);S_FLIGHT,XS(G)
- Try
- B(J);
- Threat
- DUALS(3)
- Vars
- Q(h);XS(G)::R(D)+P(E),XR(g)
- R(g);XR(D)::QAR1(B)
- R(g);N_GUARD,XS(G)::R(D)+P(E)
- S(d);XS(G)::S(I),XR(g)
- R(g);::QAR1(B)
- Refutation
- R(f);XB(J)
- Try
- R(D);XR(g)
- Threat
- DUALS(5)
- Refutation
- Q(h);XS(G)
- Try
- P(E);CHECK
- Vars
- R(g);XR(D)::S(G)
- Refutation
- K(e);S_FLIGHT,XS(G)
- Try
- Actual
- B(J);
- Threat
- QAR1(B)
- Vars
- K(e);S_FLIGHT::QAR1(B)
- Q(h);N_GUARD,P_SPINQ(h),XS(G)::S(I)
- R(g);N_GUARD,P_SPINR(g),XS(G)::P=Q
- S(d);N_GUARD,P_SPINS(d),XS(G)::QAR2(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).