MESON Chess Problem Database
Problem Display
PID: 59679 (3Q1B2/1K6/2PP4/2RnRP2/1pPkb1P1/1P3p1N/3P1p2/3N1B2 w - - 0 1)
Pirrone, Santi
1st Prize, Sinfonie Scacchistiche, 1967
#2
15 + 6
| 3772 | FIDE Album (1965-1967) | 1976 |
| 35 | L'Italia Scacchistica | 1985 |
| 4901 | Best Problems | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Kxc5
- 2.Qb6#
- 1...Kxe5
- 2.Bg7#
- 1...Bb1
- 2.Rcxd5#
- 1...Bc2
- 2.Rcxd5#
- 1...Bd3
- 2.Rcxd5#
- 1...Bxf5
- 2.Rcxd5#
- 1...Se3
- 2.dxe3#
- 1...Kxc5
- Tries
- 1.Bh6?
- 1...Kxc5
- 2.Be3#
- 1...Kxe5
- 2.Bg7#
- 1...Bxf5
- 2.Rcxd5#
- 1...Sc3
- 2.Be3#
- 1...Bb1
- 2.Rcxd5#
- 1...Bc2
- 2.Rcxd5#
- 1...Bd3
- 2.Rcxd5#
- 1...Se3
- 2.Bxe3#
- 2.dxe3#
- 1...Sb6
- 2.Be3#
- 1...Sf6
- 2.Be3#
- 1...Sc7
- 2.Be3#
- 1...Se7
- 2.Be3#
- 1...Sf4!
- 1...Kxc5
- 1.Ra5?
- 1...Kxe5
- 2.Bg7#
- 1...Bxf5
- 2.Raxd5#
- 1...Sc3
- 2.Qb6#
- 1...Bb1
- 2.Raxd5#
- 1...Bc2
- 2.Raxd5#
- 1...Bd3
- 2.Raxd5#
- 1...Se3
- 2.Qb6#
- 2.dxe3#
- 1...Sf4
- 2.Qb6#
- 1...Sb6
- 2.Qxb6#
- 1...Sf6
- 2.Qb6#
- 1...Se7
- 2.Qb6#
- 1...Sc7!
- 1...Kxe5
- 1.Rb5?
- 1...Kxe5
- 2.Bg7#
- 1...Bxf5
- 2.Rbxd5#
- 1...Sc3
- 2.Qb6#
- 1...Bb1
- 2.Rbxd5#
- 1...Bc2
- 2.Rbxd5#
- 1...Bd3
- 2.Rbxd5#
- 1...Se3
- 2.Qb6#
- 2.dxe3#
- 1...Sf4
- 2.Qb6#
- 1...Sb6
- 2.Qxb6#
- 1...Sf6
- 2.Qb6#
- 1...Se7
- 2.Qb6#
- 1...Sc7!
- 1...Kxe5
- 1.Rxe4+?
- 1...Kxc5
- 2.Qa5#
- 2.d4#
- 1...Kxe4!
- 1...Kxc5
- 1.Qa5?
- 1...Kxe5
- 2.Qa1#
- 1...Bxf5
- 2.Rcxd5#
- 1...Bb1
- 2.Rcxd5#
- 1...Bc2
- 2.Rcxd5#
- 1...Bd3
- 2.Rcxd5#
- 1...Se3
- 2.Qa1#
- 2.dxe3#
- 1...Sf4
- 2.Qa1#
- 1...Sb6
- 2.Qa1#
- 1...Sf6
- 2.Qa1#
- 1...Sc7
- 2.Qa1#
- 1...Se7
- 2.Qa1#
- 1...Sc3!
- 1...Kxe5
- 1.Qg5?
- 1...Kxc5
- 2.Qe3#
- 1...Kxe5
- 2.Qg7#
- 1...Bxf5
- 2.Rcxd5#
- 1...Sc3
- 2.Qe3#
- 1...Bb1
- 2.Rcxd5#
- 1...Bc2
- 2.Rcxd5#
- 1...Bd3
- 2.Rcxd5#
- 1...Se3
- 2.Qxe3#
- 2.dxe3#
- 1...Sb6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Sc7
- 2.Qe3#
- 1...Se7
- 2.Qe3#
- 1...Sf4!
- 1...Kxc5
- 1.Qa8?
- 1...Kxc5
- 2.Qa7#
- 1...Kxe5
- 2.Qa1#
- 1...Bxf5
- 2.Rcxd5#
- 1...Bb1
- 2.Rcxd5#
- 1...Bc2
- 2.Rcxd5#
- 1...Bd3
- 2.Rcxd5#
- 1...Se3
- 2.Qa1#
- 2.dxe3#
- 1...Sf4
- 2.Qa1#
- 1...Sb6
- 2.Qa1#
- 1...Sf6
- 2.Qa1#
- 1...Sc7
- 2.Qa1#
- 1...Se7
- 2.Qa1#
- 1...Sc3!
- 1...Kxc5
- 1.Bh6?
- Keys
- 1.Qh4!
- 1...Kxc5
- 2.Qxf2#
- 1...Kxe5
- 2.Qh8#
- 1...Bxf5
- 2.Rcxd5#
- 1...Sc3
- 2.Qxf2#
- 1...Bb1
- 2.Rcxd5#
- 1...Bc2
- 2.Rcxd5#
- 1...Bd3
- 2.Rcxd5#
- 1...Se3
- 2.dxe3#
- 1...Sf4
- 2.Qxf2#
- 1...Sb6
- 2.Qxf2#
- 1...Sf6
- 2.Qxf2#
- 1...Sc7
- 2.Qxf2#
- 1...Se7
- 2.Qxf2#
- 1...Kxc5
- 1.Qh4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- K(d);OGATEB,P_SPINS(f),S_FLIGHT,XR(H)::QAB1(N)
- K(d);OGATEB,P_SPINS(f),S_FLIGHT,XR(I)::B(O)
- B(e);N_GUARD::R1(H),XS(f)
- B(e);N_GUARD,XP(J)::R1(H),XS(f)
- S(f);OGATE,P_PINP(K)::P(C),XS(f)
- Tries
- Try
- B(O);
- Vars
- K(d);P_SPINS(f),S_FLIGHT,XR(H)::B(O)
- K(d);OGATEB,P_SPINS(f),S_FLIGHT,XR(I)::B(O)
- B(e);N_GUARD,XP(J)::R1(H),XS(f)
- S(f);N_GUARD,P_PINP(K)::B(O)
- B(e);N_GUARD::R1(H),XS(f)
- Refutation
- S(f);P_PINP(K)
- Try
- R(H);
- Vars
- K(d);OGATEB,P_SPINS(f),S_FLIGHT,XR(I)::B(O)
- B(e);N_GUARD,XP(J)::R1(H),XS(f)
- S(f);N_GUARD,P_PINP(K)::QAB(N)
- B(e);N_GUARD::R1(H),XS(f)
- S(f);N_GUARD,P_PINP(K)::QAB(N),XS(f)
- Refutation
- S(f);P_PINP(K)
- Try
- R(H);
- Vars
- K(d);OGATEB,P_SPINS(f),S_FLIGHT,XR(I)::B(O)
- B(e);N_GUARD,XP(J)::R1(H),XS(f)
- S(f);N_GUARD,P_PINP(K)::QAB(N)
- B(e);N_GUARD::R1(H),XS(f)
- S(f);N_GUARD,P_PINP(K)::QAB(N),XS(f)
- Refutation
- S(f);P_PINP(K)
- Try
- R(I);CHECK,XB(e)
- Refutation
- K(d);P-FLIGHT,XR(I)
- Try
- Q(N);
- Vars
- K(d);P_SPINS(f),S_FLIGHT,XR(I)::QAB(N)
- B(e);N_GUARD,XP(J)::R1(H),XS(f)
- B(e);N_GUARD::R1(H),XS(f)
- S(f);N_GUARD,P_PINP(K)::QAB(N)
- Refutation
- S(f);P_PINP(K)
- Try
- Q(N);
- Vars
- K(d);P_SPINS(f),S_FLIGHT,XR(H)::QAB(N)
- K(d);OGATEB,P_SPINS(f),S_FLIGHT,XR(I)::QAB(N)
- B(e);N_GUARD,XP(J)::R1(H),XS(f)
- S(f);N_GUARD,P_PINP(K)::QAB1(N)
- B(e);N_GUARD::R1(H),XS(f)
- Refutation
- S(f);P_PINP(K)
- Try
- Q(N);
- Vars
- K(d);OGATEB,P_SPINS(f),S_FLIGHT,XR(H)::QAB(N)
- K(d);P_SPINS(f),S_FLIGHT,XR(I)::QAB(N)
- B(e);N_GUARD,XP(J)::R1(H),XS(f)
- B(e);N_GUARD::R1(H),XS(f)
- S(f);N_GUARD,P_PINP(K)::QAB(N)
- Refutation
- S(f);P_PINP(K)
- Try
- Actual
- Q(N);
- Vars
- K(d);P_SPINS(f),S_FLIGHT,XR(H)::QAB(N),XP(a)
- K(d);OGATEB,P_SPINS(f),S_FLIGHT,XR(I)::QAB(N)
- B(e);N_GUARD,XP(J)::R1(H),XS(f)
- S(f);N_GUARD,P_PINP(K)::QAB(N),XP(a)
- B(e);N_GUARD::R1(H),XS(f)
- S(f);OGATE,P_PINP(K)::P(C),XS(f)
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).