MESON Chess Problem Database
Problem Display
PID: 261870 (6K1/2n1N2p/1R1Bk3/2p1NpP1/3r4/7r/6B1/4R3 w - - 0 1)
Somma, Francesco
Il Problema, 1931
#2
8 + 7
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Ra4
- 2.Bxc5#
- 1...Rc4
- 2.Bxc5#
- 1...Rf4
- 2.Bxc5#
- 1...Rg4
- 2.Bxc5#
- 1...Rh4
- 2.Bxc5#
- 1...f4
- 2.Bxh3#
- 1...Ra4
- Tries
- 1.Sd3+?
- 1...Re3
- 2.Sxc5#
- 1...Re4
- 2.Sxc5#
- 1...Kd7!
- 1...Re3
- 1.S5g6+?
- 1...Re3
- 2.Sf8#
- 1...Re4
- 2.Sf8#
- 1...Kd7!
- 1...Re3
- 1.Sd7+?
- 1...Re3
- 2.Sxc5#
- 2.Sf8#
- 1...Re4
- 2.Sxc5#
- 2.Sf8#
- 1...Kxd7!
- 1...Re3
- 1.Bxh3?
- threat
- 2.Bxf5#
- 1...Rf4
- 2.Bxc5#
- 1...Rg4
- 2.Bxc5#
- 1...Rxd6!
- threat
- 1.Sd3+?
- Keys
- 1.Bc6!
- threat
- 2.Bd7#
- 1...Kxd6
- 2.Sf7#
- 1...Rxd6
- 2.Sf3#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- R(b);N_GUARD::R(E)+B(F),XP(c)
- R(b);N_GUARD,P_PINP(D)::R(E)+B(F),XP(c)
- P(d);OGATEB::B(B),XR(a)
- Tries
- Try
- S(C);CHECK
- Vars
- R(a);P_SPINR(a)::S(C),XP(c)
- R(b);P_SPINR(b)::S(C),XP(c)
- Refutation
- K(e);S_FLIGHT
- Try
- S(C);CHECK
- Vars
- R(a);P_SPINR(a)::S(C)
- R(b);P_SPINR(b)::S(C)
- Refutation
- K(e);S_FLIGHT
- Try
- S(C);CHECK
- Refutation
- K(e);S_FLIGHT,XS(C)
- Try
- B(B);P_PINP(d),XR(a)
- Threat
- B(B),XP(d)
- Vars
- R(b);N_GUARD::R(E)+B(F),XP(c)
- R(b);N_GUARD,N_SPINP(d),P_PINP(D)::R(E)+B(F),XP(c)
- Refutation
- R(b);P_SPINR(b),XB(F)
- Try
- Actual
- B(B);
- Threat
- B(B)
- Vars
- K(e);P-FLIGHT,S_CUTR(a),S_CUTR(b),XB(F)::S(C)
- R(b);N_GUARD,SBLOCK,XB(F)::R(A)+S(C)
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).