MESON Chess Problem Database
Problem Display
PID: 234049 (2B2R2/4k2N/r2p1p1r/2p5/p7/1n2B1P1/1Q5P/6K1 w - - 0 1)
Ricciardi, Aldechi
Il Due Mosse, 1955
#2
8 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxh2
- 2.Qxf6#
- 1...Rh3
- 2.Qxf6#
- 1...Rh4
- 2.Qxf6#
- 1...Rh5
- 2.Qxf6#
- 1...Rxh7
- 2.Qxf6#
- 1...Sa1
- 2.Qb7#
- 1...Sc1
- 2.Qb7#
- 1...Sd2
- 2.Qb7#
- 1...Sd4
- 2.Qb7#
- 1...f5
- 2.Qg7#
- 1...Rxh2
- Tries
- 1.Bc1?
- threat
- 2.Qe2#
- 1...Rxh2
- 2.Qxf6#
- 1...Rxh7
- 2.Qxf6#
- 1...Sxc1
- 2.Qb7#
- 1...Rh4
- 2.Qxf6#
- 1...Rh5
- 2.Qxf6#
- 1...Sd2
- 2.Qb7#
- 1...Sd4
- 2.Qb7#
- 1...f5
- 2.Qg7#
- 1...d5!
- threat
- 1.Bf2?
- threat
- 2.Qe2#
- 1...Rxh7
- 2.Qxf6#
- 1...Rh4
- 2.Qxf6#
- 1...Rh5
- 2.Qxf6#
- 1...Sc1
- 2.Qb7#
- 1...Sd2
- 2.Qb7#
- 1...Sd4
- 2.Qb7#
- 1...f5
- 2.Qg7#
- 1...d5!
- threat
- 1.Bf4?
- threat
- 2.Qe2#
- 1...Rxh2
- 2.Qxf6#
- 1...Rxh7
- 2.Qxf6#
- 1...Rh5
- 2.Qxf6#
- 1...Sc1
- 2.Qb7#
- 1...Sd2
- 2.Qb7#
- 1...Sd4
- 2.Qb7#
- 1...f5
- 2.Qg7#
- 1...d5!
- threat
- 1.Bg5?
- threat
- 2.Qe2#
- 1...Rxh2
- 2.Bxf6#
- 2.Qxf6#
- 1...Rxh7
- 2.Qxf6#
- 1...fxg5
- 2.Qg7#
- 1...Rh4
- 2.Bxf6#
- 2.Qxf6#
- 1...Sc1
- 2.Qb7#
- 1...Sd2
- 2.Qb7#
- 1...Sd4
- 2.Qb7#
- 1...d5!
- threat
- 1.Bxh6?
- threat
- 2.Qxf6#
- 2.Qe2#
- 1...Sc1
- 2.Qxf6#
- 2.Qb7#
- 1...Sd2
- 2.Qxf6#
- 2.Qb7#
- 1...Sd4
- 2.Qb7#
- 1...f5
- 2.Bg5#
- 2.Qf6#
- 2.Qg7#
- 2.Qe2#
- 1...d5!
- threat
- 1.Bc1?
- Keys
- 1.Qe2!
- threat
- 2.Bc1#
- 2.Bd2#
- 2.Bf2#
- 2.Bd4#
- 2.Bf4#
- 2.Bxc5#
- 2.Bg5#
- 2.Bxh6#
- 1...Rxh2
- 2.Bf2#
- 1...Rxh7
- 2.Bh6#
- 1...d5
- 2.Bxc5#
- 1...Rh3
- 2.Bc1#
- 2.Bd2#
- 2.Bf2#
- 2.Bd4#
- 2.Bf4#
- 2.Bxc5#
- 2.Bg5#
- 2.Bh6#
- 1...Rh4
- 2.Bf4#
- 1...Rh5
- 2.Bg5#
- 1...Rg6
- 2.Bc1#
- 2.Bd2#
- 2.Bf2#
- 2.Bd4#
- 2.Bf4#
- 2.Bxc5#
- 2.Bg5#
- 2.Bh6#
- 1...Sc1
- 2.Bxc1#
- 1...Sd2
- 2.Bxd2#
- 1...Sd4
- 2.Bxd4#
- 1...c4
- 2.Bc1#
- 2.Bd2#
- 2.Bf2#
- 2.Bd4#
- 2.Bf4#
- 2.Bc5#
- 2.Bg5#
- 2.Bb6#
- 2.Bxh6#
- 2.Ba7#
- 1...f5
- 2.Bg5#
- 2.Bxh6#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- R(g);N_GUARD,XP(C)::QAB1(B),XP(f)
- R(g);N_GUARD::QAB1(B),XP(f)
- R(g);N_GUARD,XS(F)::QAB1(B),XP(f)
- S(a);OGATE::QAR(B)
- P(f);OGATE::QAR2(B)
- Tries
- Try
- B(D);
- Threat
- QAR(B)
- Vars
- R(g);N_GUARD,XP(C)::QAB1(B),XP(f)
- R(g);N_GUARD,XS(F)::QAB1(B),XP(f)
- S(a);OGATE,XB(D)::QAR(B)
- R(g);N_GUARD::QAB1(B),XP(f)
- S(a);OGATE::QAR(B)
- P(f);OGATE::QAR2(B)
- Refutation
- P(e);
- Try
- B(D);
- Threat
- QAR(B)
- Vars
- R(g);N_GUARD,XS(F)::QAB1(B),XP(f)
- R(g);N_GUARD::QAB1(B),XP(f)
- S(a);OGATE::QAR(B)
- P(f);OGATE::QAR2(B)
- Refutation
- P(e);
- Try
- B(D);
- Threat
- QAR(B)
- Vars
- R(g);N_GUARD,XP(C)::QAB1(B),XP(f)
- R(g);N_GUARD,XS(F)::QAB1(B),XP(f)
- R(g);N_GUARD::QAB1(B),XP(f)
- S(a);OGATE::QAR(B)
- P(f);OGATE::QAR2(B)
- Refutation
- P(e);
- Try
- B(D);P_PINP(f)
- Threat
- QAR(B)
- Vars
- R(g);N_GUARD,XS(F)::QAB1(B),XP(f)
- P(f);N_SPINP(f),OGATE,XB(D)::QAR2(B)
- S(a);OGATE::QAR(B)
- Refutation
- P(e);
- Try
- B(D);XR(g)
- Threat
- DUALS(2)
- Vars
- S(a);OGATE::QAR(B)
- Refutation
- P(e);
- Try
- Actual
- Q(B);
- Threat
- DUALS(8)
- Vars
- R(g);XP(C)::QAR(B)+B(D)
- R(g);XS(F)::QAR(B)+B(D)
- P(e);::QAR(B)+B(D),DCHECK,XP(c)
- R(g);::QAR(B)+B(D)
- S(a);::QAR(B)+B(D),XS(a)
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).