MESON Chess Problem Database
Problem Display
PID: 50040 (8/ppQKNN2/5p2/5R2/2pkPR2/b4p1q/2PP1P2/1r1nr3 w - - 0 1)
Stocchi, Ottavio
1st Prize, L'Italia Scacchistica, 1960
#2
10 + 11
| 3749 | FIDE Album (1959-1961) | 1966 |
| 5407 | Selected Stocchi (II) | 2004 |
| 56 | The Problemist | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Rd5#
- 1...Qg2
- 2.Rd5#
- 1...Qxf5+
- 2.Sxf5#
- 1...Qh1
- 2.Rd5#
- 1...Qh2
- 2.Rd5#
- 1...Qg3
- 2.Rd5#
- 1...Qh4
- 2.Rd5#
- 1...Qh6
- 2.Rd5#
- 1...Qh7
- 2.Rd5#
- 1...Qh8
- 2.Rd5#
- 1...Rb4
- 2.Qd6#
- 2.Qc5#
- 1...Rf1
- 2.e5#
- 1...Rg1
- 2.e5#
- 1...Rh1
- 2.e5#
- 1...Bc1
- 2.Qd6#
- 2.Qc5#
- 1...Bb2
- 2.Qd6#
- 2.Qc5#
- 1...Bc5
- 2.Qxc5#
- 1...Bd6
- 2.Qxd6#
- 1...Se3
- 2.e5#
- 1...b5
- 2.Sc6#
- 1...b6
- 2.Sc6#
- 1...Qf1
- Tries
- 1.Se5?
- threat
- 2.Qxc4#
- 1...Qxf5+
- 2.Sxf5#
- 1...fxe5
- 2.Qxe5#
- 1...Qf1
- 2.Sxf3#
- 1...Rb4
- 2.Qd6#
- 1...Sb2
- 2.c3#
- 1...Se3
- 2.c3#
- 1...c3
- 2.Qc4#
- 1...b5
- 2.S5c6#
- 1...Bc5!
- threat
- 1.Sg5?
- threat
- 2.Se6#
- 1...Qxf5+
- 2.Sxf5#
- 1...fxg5
- 2.Qe5#
- 1...Rb6!
- threat
- 1.Sd8?
- threat
- 2.Se6#
- 1...Qxf5+
- 2.Sxf5#
- 1...Rb6!
- threat
- 1.Qa5?
- threat
- 2.Qd5#
- 1...Qxf5+
- 2.Sxf5#
- 1...Bc5
- 2.Qxc5#
- 1...Sc3
- 2.Qxc3#
- 2.dxc3#
- 1...Se3
- 2.Qc3#
- 2.e5#
- 1...b5
- 2.Sc6#
- 1...Rb5!
- threat
- 1.Qc6?
- threat
- 2.Qd5#
- 2.Qxf6#
- 1...Qxf5+
- 2.Sxf5#
- 1...Bxe7
- 2.Qd5#
- 1...bxc6
- 2.Sxc6#
- 1...Qh4
- 2.Rd5#
- 2.Qd5#
- 1...Qh6
- 2.Rd5#
- 2.Qd5#
- 1...Qh8
- 2.Rd5#
- 2.Qd5#
- 1...Rb6
- 2.Qd5#
- 1...Bd6
- 2.Qd5#
- 2.Qxd6#
- 1...Sc3
- 2.Qxf6#
- 1...Se3
- 2.Qxf6#
- 2.e5#
- 1...c3
- 2.Qd5#
- 1...Rb5!
- threat
- 1.Se5?
- Keys
- 1.Sd6!
- threat
- 2.Qxc4#
- 1...Qxf5+
- 2.Sdxf5#
- 1...Bxd6
- 2.Qxd6#
- 1...Qf1
- 2.Rd5#
- 1...Rb4
- 2.Qc5#
- 1...Bc5
- 2.Qxc5#
- 1...Sb2
- 2.Sb5#
- 1...Se3
- 2.e5#
- 1...c3
- 2.Qc4#
- 1...b5
- 2.Sc6#
- threat
- 1.Sd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 12
- Sets
- Q(f);N_PINR(F)::R1(F)
- Q(f);CHECK,XR(F)::S(I),XQ(f)
- R(c);N_GUARD::R(E)+P(D)
- B(d);N_GUARD::QAB1(G),XB(d)
- B(d);N_GUARD::QAR2(G),XB(d)
- S(b);S_CUTR(c)::R(E)+P(D)
- P(k);N_GUARD::S(I)
- Tries
- Try
- S(J);
- Threat
- QAR1(G),XP(g)
- Vars
- Q(f);CHECK,XR(F)::S(I),XQ(f)
- P(i);OGATE,XS(J)::QAB1(G),XP(i)
- Q(f);N_GUARD,N_PINR(F)::S(J),XP(e)
- R(a);S_CUTB(d)::QAR2(G)
- S(b);N_GUARD::P(A)
- P(g);::QAR1(G)
- P(k);N_GUARD::S(J)
- Refutation
- B(d);
- Try
- S(J);
- Threat
- S(J)
- Vars
- Q(f);CHECK,XR(F)::S(I),XQ(f)
- P(i);N_GUARD,XS(J)::QAB1(G)
- Refutation
- R(a);
- Try
- S(J);
- Threat
- S(J)
- Vars
- Q(f);CHECK,XR(F)::S(I),XQ(f)
- Refutation
- R(a);
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- Q(f);CHECK,XR(F)::S(I),XQ(f)
- B(d);N_GUARD::QAB1(G),XB(d)
- P(k);N_GUARD::S(I)
- Refutation
- R(a);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,XR(F)::S(I),XQ(f)
- B(d);XS(I)::QAR1(G)
- P(k);XQ(G)::S(I),XP(k)
- R(a);::QAR1(G)
- S(b);::QAB(G),XP(i)
- P(g);::QAR1(G)
- Refutation
- R(a);
- Try
- Actual
- S(J);
- Threat
- QAR1(G),XP(g)
- Vars
- Q(f);CHECK,XR(F)::S(J),XQ(f)
- B(d);OGATE,XS(J)::QAR2(G),XB(d)
- Q(f);N_PINR(F)::R1(F)
- R(a);S_CUTB(d)::QAB1(G)
- B(d);N_GUARD::QAB1(G),XB(d)
- S(b);S_CUTR(a)::S(J)
- S(b);S_CUTR(c)::R(E)+P(D)
- P(g);::QAR1(G)
- P(k);N_GUARD::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).