MESON Chess Problem Database
Problem Display
PID: 266810 (8/2p2Q2/1p1r2pK/2BPk1P1/R4n1R/1Np1r3/B2P4/6N1 w - - 0 1)
Castellari, Umberto
La Scacchiera, 1951
#2
11 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Sf3#
- 1...Re2
- 2.Sf3#
- 1...Rf3
- 2.Sxf3#
- 1...Re4
- 2.Sf3#
- 1...Rxd5
- 2.Qf6#
- 1...Sg2
- 2.Bd4#
- 2.d4#
- 1...Sd3
- 2.Bd4#
- 1...Sh3
- 2.Bd4#
- 2.d4#
- 1...Sxd5
- 2.Bd4#
- 2.d4#
- 1...Sh5
- 2.Bd4#
- 2.d4#
- 1...Re1
- Tries
- 1.Sa1?
- threat
- 2.Qxf4#
- 1...Rxd5
- 2.Qf6#
- 1...Sxd5
- 2.Bd4#
- 2.d4#
- 1...Rf6
- 2.Qxf6#
- 1...Rf3
- 2.Sxf3#
- 1...Re4
- 2.Sf3#
- 1...Sg2
- 2.Bd4#
- 2.d4#
- 1...Sd3
- 2.Bd4#
- 1...Sh3
- 2.Bd4#
- 2.d4#
- 1...Sh5
- 2.Bd4#
- 2.d4#
- 1...Se6
- 2.Qf6#
- 1...Se2!
- threat
- 1.Sc1?
- threat
- 2.Qxf4#
- 1...Rxd5
- 2.Qf6#
- 1...Sxd5
- 2.Bd4#
- 2.d4#
- 1...Rf6
- 2.Qxf6#
- 1...Rf3
- 2.Sxf3#
- 1...Re4
- 2.Sf3#
- 1...Sg2
- 2.Bd4#
- 2.d4#
- 1...Sd3
- 2.Bd4#
- 1...Sh3
- 2.Bd4#
- 2.d4#
- 1...Sh5
- 2.Bd4#
- 2.d4#
- 1...Se6
- 2.Qf6#
- 1...Se2!
- threat
- 1.Re4+?
- 1...Rxe4
- 2.Sf3#
- 1...Kxe4!
- 1...Rxe4
- 1.Raxf4?
- threat
- 2.Bd4#
- 2.d4#
- 1...Rxd5
- 2.Qe8#
- 2.Qf6#
- 2.Qe7#
- 1...cxd2
- 2.Bd4#
- 1...Re6
- 2.Qxe6#
- 1...Rd3
- 2.Re4#
- 1...Re4
- 2.Sf3#
- 2.Rxe4#
- 1...Rc6
- 2.d4#
- 1...Rf6
- 2.d4#
- 1...Rd7
- 2.Qe6#
- 2.d4#
- 1...Rd8
- 2.Qe6#
- 2.d4#
- 1...bxc5!
- threat
- 1.Sa1?
- Keys
- 1.Sa5!
- threat
- 2.Qxf4#
- 1...Rxd5
- 2.Sc6#
- 2.Qf6#
- 1...Sxd5
- 2.Sc4#
- 2.Bd4#
- 2.d4#
- 1...Rf6
- 2.Qxf6#
- 1...Se2
- 2.Sc4#
- 1...Rf3
- 2.Sxf3#
- 1...Re4
- 2.Sf3#
- 1...Sg2
- 2.Sc4#
- 2.Bd4#
- 2.d4#
- 1...Sd3
- 2.Sc4#
- 2.Bd4#
- 1...Sh3
- 2.Sc4#
- 2.Bd4#
- 2.d4#
- 1...Sh5
- 2.Sc4#
- 2.Bd4#
- 2.d4#
- 1...Se6
- 2.Qf6#
- threat
- 1.Sa5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- R(b);N_GUARD::S(A)
- R(b);N_GUARD::S(A),XR(b)
- R(f);N_GUARD,SBLOCK,XP(H)::QAB1(K)
- S(c);::B(G)
- Tries
- Try
- S(D);
- Threat
- QAB1(K),XS(c)
- Vars
- R(f);N_GUARD,XP(H)::QAB1(K)
- R(f);N_GUARD::QAB1(K),XR(f)
- R(b);N_GUARD::S(A),XR(b)
- R(b);N_GUARD::S(A)
- S(c);::B(G)
- S(c);S_CUTR(f)::QAB1(K)
- Refutation
- S(c);
- Try
- S(D);
- Threat
- QAB1(K),XS(c)
- Vars
- R(f);N_GUARD,XP(H)::QAB1(K)
- R(f);N_GUARD::QAB1(K),XR(f)
- R(b);N_GUARD::S(A),XR(b)
- R(b);N_GUARD::S(A)
- S(c);::B(G)
- S(c);S_CUTR(f)::QAB1(K)
- Refutation
- S(c);
- Try
- R(E);CHECK
- Vars
- R(b);SBLOCK,XR(E)::S(A)
- Refutation
- K(d);P-FLIGHT,P_SPINS(c),XR(E)
- Try
- R(E);XS(c)
- Threat
- DUALS(2)
- Vars
- P(a);XP(C)::B(G)
- R(f);N_GUARD::QAR1(K),XR(f)
- R(b);N_GUARD::R1(E)
- R(f);::P(C)
- Refutation
- P(e);XB(G)
- Try
- Actual
- S(D);
- Threat
- QAB1(K),XS(c)
- Vars
- R(f);N_GUARD::QAB1(K),XR(f)
- S(c);::S(D)
- R(b);N_GUARD::S(A),XR(b)
- R(b);N_GUARD::S(A)
- S(c);S_CUTR(f)::QAB1(K)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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