MESON Chess Problem Database
Problem Display
PID: 103321 (8/5p1n/4R2K/5kpn/8/4PP2/B7/B5R1 w - - 0 1)
Somma, Francesco
Il Littorale, 1929-1931
#2
7 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sf4
- 2.e4#
- 1...S5f6
- 2.Re5#
- 1...S7f6
- 2.Rxg5#
- 2.Re5#
- 1...Sf8
- 2.Rxg5#
- 1...g4
- 2.fxg4#
- 1...fxe6
- 2.Bb1#
- 1...Sf4
- Tries
- 1.Kxh5?
- 1...Sf6+
- 2.Rxf6#
- 1...fxe6
- 2.Bb1#
- 1...Sf8
- 2.Rxg5#
- 2.Rf6#
- 1...g4
- 2.fxg4#
- 1...f6!
- 1...Sf6+
- 1.Rb1?
- threat
- 2.Rb5#
- 1...Sf4
- 2.e4#
- 1...S5f6
- 2.Re5#
- 1...S7f6
- 2.Re5#
- 1...fxe6!
- threat
- 1.Rg4?
- threat
- 2.e4#
- 1...S5f6
- 2.Re5#
- 1...S7f6
- 2.Rxg5#
- 2.Re5#
- 1...Sg3!
- threat
- 1.Ra6?
- threat
- 2.Bb1#
- 2.Ra5#
- 1...Sg3
- 2.Ra5#
- 1...Sf4
- 2.e4#
- 1...S7f6
- 2.Rxg5#
- 1...S5f6!
- threat
- 1.Rb6?
- threat
- 2.Bb1#
- 2.Rb5#
- 1...Sg3
- 2.Rb5#
- 1...Sf4
- 2.e4#
- 1...S7f6
- 2.Rxg5#
- 1...S5f6!
- threat
- 1.Rc6?
- threat
- 2.Bb1#
- 2.Rc5#
- 1...Sg3
- 2.Rc5#
- 1...Sf4
- 2.e4#
- 1...S7f6
- 2.Rxg5#
- 1...S5f6!
- threat
- 1.Rf6+?
- 1...S7xf6
- 2.Rxg5#
- 1...S5xf6!
- 1...S7xf6
- 1.Re7?
- threat
- 2.Bb1#
- 1...Sf4
- 2.e4#
- 1...S5f6
- 2.Re5#
- 1...S7f6
- 2.Rxg5#
- 2.Re5#
- 1...Sg3!
- threat
- 1.Re8?
- threat
- 2.Bb1#
- 1...Sf4
- 2.e4#
- 1...S5f6
- 2.Re5#
- 1...S7f6
- 2.Rxg5#
- 2.Re5#
- 1...Sg3!
- threat
- 1.Kxh5?
- Keys
- 1.Rc1!
- threat
- 2.Rc5#
- 1...fxe6
- 2.Bb1#
- 1...Sf4
- 2.e4#
- 1...S5f6
- 2.Re5#
- 1...S7f6
- 2.Re5#
- threat
- 1.Rc1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- S(c);SBLOCK::P(D)
- S(c);SBLOCK::R1(F)
- S(e);N_GUARD::R1(B),XP(b)
- P(b);OGATE::P(E),XP(b)
- P(d);SBLOCK,XR(F)::B(C)
- Tries
- Try
- K(G);P-FLIGHT,XS(c)
- Vars
- S(e);CHECK,N_GUARD::R1(F),XS(e)
- P(d);SBLOCK,XR(F)::B(C)
- P(b);OGATE::P(E),XP(b)
- Refutation
- P(d);
- Try
- R(B);
- Threat
- R(B)
- Vars
- S(c);SBLOCK::P(D)
- S(c);SBLOCK::R1(F)
- S(e);SBLOCK::R1(F)
- Refutation
- P(d);XR(F)
- Try
- R(B);
- Threat
- P(D)
- Vars
- S(c);SBLOCK::R1(F)
- Refutation
- S(c);
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- S(c);::R(F)
- S(c);SBLOCK::P(D)
- S(e);N_GUARD::R1(B),XP(b)
- Refutation
- S(c);
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- S(c);::R(F)
- S(c);SBLOCK::P(D)
- S(e);N_GUARD::R1(B),XP(b)
- Refutation
- S(c);
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- S(c);::R(F)
- S(c);SBLOCK::P(D)
- S(e);N_GUARD::R1(B),XP(b)
- Refutation
- S(c);
- Try
- R(F);CHECK
- Vars
- S(e);XR(F)::R1(B),XP(b)
- Refutation
- S(c);XR(F)
- Try
- R(F);
- Threat
- B(C)
- Vars
- S(c);SBLOCK::P(D)
- S(c);SBLOCK::R1(F)
- Refutation
- S(c);
- Try
- R(F);
- Threat
- B(C)
- Vars
- S(c);SBLOCK::P(D)
- S(c);SBLOCK::R1(F)
- Refutation
- S(c);
- Try
- Actual
- R(B);
- Threat
- R(B)
- Vars
- P(d);SBLOCK,XR(F)::B(C)
- S(c);SBLOCK::P(D)
- S(c);SBLOCK::R1(F)
- S(e);SBLOCK::R1(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).