MESON Chess Problem Database
Problem Display
PID: 261678 (8/4pN2/P1k1P3/P2R4/1pB5/6r1/p4r1Q/K1R3Bn w - - 0 1)
Somma, Francesco
L'Italia Scacchistica, 1931
#2
10 + 7
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Rc5#
- 1...Rb2
- 2.Rc5#
- 1...Rc2
- 2.Rc5#
- 1...Rd2
- 2.Rc5#
- 1...Re2
- 2.Rc5#
- 1...Rfg2
- 2.Rc5#
- 1...Rxh2
- 2.Rc5#
- 1...Rff3
- 2.Rc5#
- 1...Rf4
- 2.Rc5#
- 1...Rf6
- 2.Rc5#
- 1...Rxg1
- 2.Sd8#
- 1...Rgg2
- 2.Sd8#
- 1...Ra3
- 2.Sd8#
- 1...Rb3
- 2.Sd8#
- 1...Rc3
- 2.Sd8#
- 1...Rd3
- 2.Sd8#
- 1...Re3
- 2.Sd8#
- 1...Rgf3
- 2.Sd8#
- 1...Rh3
- 2.Sd8#
- 1...Rg4
- 2.Sd8#
- 1...Rg5
- 2.Sd8#
- 1...Rg6
- 2.Sd8#
- 1...Rg7
- 2.Sd8#
- 1...Rf1
- Tries
- 1.Bxa2+?
- 1...Rc3
- 2.Sd8#
- 1...Rc2!
- 1...Rc3
- 1.Bb3+?
- 1...Rc3
- 2.Sd8#
- 1...Rc2!
- 1...Rc3
- 1.Rd7?
- 1...Kc5
- 2.Bd3#
- 1...Rxh2
- 2.Se5#
- 2.Sd8#
- 1...Rxf7
- 2.Bd3#
- 1...Rxg1
- 2.Rc7#
- 2.Qc7#
- 1...Rc2
- 2.Se5#
- 2.Sd8#
- 1...Rf1
- 2.Se5#
- 2.Sd8#
- 1...Rb2
- 2.Se5#
- 2.Sd8#
- 1...Rd2
- 2.Se5#
- 2.Sd8#
- 1...Re2
- 2.Sd8#
- 1...Rfg2
- 2.Se5#
- 2.Sd8#
- 1...Rff3
- 2.Se5#
- 2.Sd8#
- 2.Bd3#
- 1...Rf4
- 2.Se5#
- 2.Sd8#
- 1...Rf5
- 2.Sd8#
- 1...Rf6
- 2.Se5#
- 2.Sd8#
- 2.Bd3#
- 1...Rgg2
- 2.Be2#
- 2.Rc7#
- 2.Qc7#
- 1...Ra3
- 2.Rc7#
- 2.Qc7#
- 1...Rb3
- 2.Rc7#
- 2.Qc7#
- 1...Rc3
- 2.Rc7#
- 2.Qc7#
- 1...Rd3
- 2.Rc7#
- 2.Qc7#
- 1...Re3
- 2.Rc7#
- 2.Qc7#
- 1...Rgf3
- 2.Rc7#
- 2.Qc7#
- 1...Rh3
- 2.Rc7#
- 2.Qc7#
- 1...Rg4
- 2.Rc7#
- 2.Qc7#
- 1...Rg5
- 2.Rc7#
- 2.Qc7#
- 1...Rg6
- 2.Be2#
- 2.Rc7#
- 2.Qc7#
- 1...Rg7
- 2.Be2#
- 2.Rc7#
- 2.Qc7#
- 1...Rg8
- 2.Be2#
- 2.Rc7#
- 2.Qc7#
- 1...b3!
- 1...Kc5
- 1.Qxg3?
- threat
- 2.Sd8#
- 1...Rxf7
- 2.Bxa2#
- 2.Bb3#
- 2.Rc5#
- 1...Rf4
- 2.Rc5#
- 1...Sxg3!
- threat
- 1.Qh8?
- threat
- 2.Qc8#
- 1...Kc7
- 2.Rc5#
- 1...Rg8!
- threat
- 1.Bxa2+?
- Keys
- 1.Rd8!
- threat
- 2.Rc8#
- 1...Kc5
- 2.Bd3#
- 1...Kc7
- 2.Be2#
- 1...Rxf7
- 2.Bd3#
- 1...Rg8
- 2.Be2#
- threat
- 1.Rd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 23
- Sets
- R(c);P_PINR(B)::R1(G)
- R(c);::R1(G)
- R(c);XQ(D)::R1(G)
- R(d);P_PINR(B),XB(C)::S(J)
- R(d);::S(J)
- Tries
- Try
- B(E);CHECK,XP(b)
- Vars
- R(d);P_SPINR(d)::S(J)
- Refutation
- R(c);P_SPINR(c)
- Try
- B(E);CHECK
- Vars
- R(d);P_SPINR(d)::S(J)
- Refutation
- R(c);P_SPINR(c)
- Try
- R(G);
- Vars
- K(f);P-FLIGHT,P_SPINR(c)::R(B)+B(E)
- R(c);N_GUARD,XS(J)::R(B)+B(E)
- R(c);::S(J)
- Refutation
- P(e);
- Try
- Q(D);XR(d)
- Threat
- S(J)
- Vars
- R(c);::R1(G)
- Refutation
- S(a);XQ(D)
- Try
- Q(D);
- Threat
- QAR2(D)
- Vars
- K(f);N_GUARD,P-FLIGHT::R(G)
- Refutation
- R(d);
- Try
- Actual
- R(G);
- Threat
- R(G)
- Vars
- K(f);P-FLIGHT,P_SPINR(c)::R(B)+B(E)
- K(f);P-FLIGHT,P_SPINR(d)::R(B)+B(E)
- R(c);N_GUARD,XS(J)::R(B)+B(E)
- R(d);N_GUARD::R(B)+B(E)
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).