MESON Chess Problem Database
Problem Display
PID: 198691 (1K2Q1n1/8/3k2rp/BnpBp2r/4P2b/6N1/8/8 w - - 0 1)
Carra, Arturo
2nd HM., Centurini Ty. (L'Italia Scacchistica), 1921
#2
6 + 9
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rf5
- 2.Sxf5#
- 1...Rhg5
- 2.Qd8#
- 1...Rxg3
- 2.Qe6#
- 1...Rg4
- 2.Qe6#
- 1...Rgg5
- 2.Qe6#
- 2.Qd8#
- 1...Re6
- 2.Qxe6#
- 1...Rf6
- 2.Qd8#
- 1...Rg7
- 2.Qe6#
- 1...Bxg3
- 2.Qd8#
- 1...Bg5
- 2.Sf5#
- 1...Bf6
- 2.Qe6#
- 1...Be7
- 2.Qc6#
- 1...Bd8
- 2.Qxd8#
- 1...Sa3
- 2.Bc7#
- 1...Sc3
- 2.Bc7#
- 1...Sd4
- 2.Bc7#
- 1...Sa7
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...Sf6
- 2.Qe6#
- 1...Se7
- 2.Qd8#
- 1...c4
- 2.Bb4#
- 1...Rf5
- Tries
- 1.Kb7?
- 1...Rxg3
- 2.Qe6#
- 1...Bxg3
- 2.Qd8#
- 1...c4
- 2.Bb4#
- 1...Rf5
- 2.Sxf5#
- 1...Rhg5
- 2.Qd8#
- 1...Rg4
- 2.Qe6#
- 1...Rgg5
- 2.Qe6#
- 2.Qd8#
- 1...Re6
- 2.Qxe6#
- 1...Rf6
- 2.Qd8#
- 1...Bg5
- 2.Sf5#
- 1...Bf6
- 2.Qe6#
- 1...Be7
- 2.Qc6#
- 1...Bd8
- 2.Qxd8#
- 1...Sa3
- 2.Bc7#
- 1...Sc3
- 2.Bc7#
- 1...Sd4
- 2.Bc7#
- 1...Sa7
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...Sf6
- 2.Qe6#
- 1...Se7
- 2.Qd8#
- 1...Rg7+!
- 1...Rxg3
- 1.Sxh5?
- 1...c4
- 2.Bb4#
- 1...Rg1
- 2.Qe6#
- 1...Rg2
- 2.Qe6#
- 1...Rg3
- 2.Qe6#
- 1...Rg4
- 2.Qe6#
- 1...Rg5
- 2.Qe6#
- 2.Qd8#
- 1...Re6
- 2.Qxe6#
- 1...Rf6
- 2.Qd8#
- 1...Rg7
- 2.Qe6#
- 1...Be1
- 2.Qd8#
- 1...Bf2
- 2.Qd8#
- 1...Bg3
- 2.Qd8#
- 1...Bf6
- 2.Qe6#
- 1...Be7
- 2.Qc6#
- 1...Bd8
- 2.Qxd8#
- 1...Sa3
- 2.Bc7#
- 1...Sc3
- 2.Bc7#
- 1...Sd4
- 2.Bc7#
- 1...Sa7
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...Sf6
- 2.Qe6#
- 1...Se7
- 2.Qd8#
- 1...Bg5!
- 1...c4
- 1.Bb6?
- 1...Rxg3
- 2.Qe6#
- 1...Bxg3
- 2.Qd8#
- 1...Bg5
- 2.Sf5#
- 1...Rf5
- 2.Sxf5#
- 1...Rhg5
- 2.Qd8#
- 1...Rg4
- 2.Qe6#
- 1...Rgg5
- 2.Qe6#
- 2.Qd8#
- 1...Re6
- 2.Qxe6#
- 1...Rf6
- 2.Qd8#
- 1...Rg7
- 2.Qe6#
- 1...Bf6
- 2.Qe6#
- 1...Be7
- 2.Qc6#
- 1...Bd8
- 2.Qxd8#
- 1...Sa3
- 2.Bc7#
- 1...Sc3
- 2.Bc7#
- 1...Sd4
- 2.Bc7#
- 1...Sa7
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...Sf6
- 2.Qe6#
- 1...Se7
- 2.Qd8#
- 1...c4!
- 1...Rxg3
- 1.Bd8?
- threat
- 2.Qc6#
- 1...Bxd8
- 2.Qxd8#
- 1...Sd4
- 2.Bc7#
- 1...Sa7
- 2.Bc7#
- 1...Se7!
- threat
- 1.Kb7?
- Keys
- 1.Qc8!
- 1...Ke7
- 2.Qd8#
- 1...Rxg3
- 2.Qe6#
- 1...Bxg3
- 2.Qd8#
- 1...Bg5
- 2.Sf5#
- 1...Rf5
- 2.Sxf5#
- 1...Rhg5
- 2.Qd8#
- 1...Rg4
- 2.Qe6#
- 1...Rgg5
- 2.Qe6#
- 2.Qd8#
- 1...Re6
- 2.Qxe6#
- 1...Rf6
- 2.Qd8#
- 1...Rg7
- 2.Qe6#
- 1...Bf6
- 2.Qe6#
- 1...Be7
- 2.Qc6#
- 1...Bd8
- 2.Qxd8#
- 1...Sa3
- 2.Qc7#
- 1...Sc3
- 2.Qc7#
- 1...Sd4
- 2.Qc7#
- 1...Sa7
- 2.Qc7#
- 1...Sc7
- 2.Qxc7#
- 1...Sf6
- 2.Qe6#
- 1...Se7
- 2.Qd8#
- 1...c4
- 2.Bb4#
- 1...Ke7
- 1.Qc8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD::S(A),XR(e)
- R(e);S_CUTB(a)::QAR2(F)
- R(g);N_GUARD,XS(A)::QAR1(F)
- R(g);N_GUARD::QAR1(F)
- R(g);N_GUARD::QAR1(F),XR(g)
- R(g);S_CUTB(a)::QAR2(F)
- B(a);N_GUARD,XS(A)::QAR2(F)
- B(a);S_CUTR(e)::S(A)
- B(a);S_CUTR(g)::QAR1(F)
- B(a);SBLOCK::QAR1(F)
- B(a);N_GUARD::QAR2(F),XB(a)
- S(b);N_GUARD::B(C)
- S(b);N_GUARD::B(C),XS(b)
- S(i);S_CUTR(g)::QAR1(F)
- S(i);S_CUTB(a)::QAR2(F)
- P(c);OGATEB::B(C)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- R(g);N_GUARD,XS(A)::QAR1(F)
- B(a);N_GUARD,XS(A)::QAR2(F)
- P(c);OGATEB::B(C)
- R(e);N_GUARD::S(A),XR(e)
- R(e);S_CUTB(a)::QAR2(F)
- R(g);N_GUARD::QAR1(F)
- R(g);N_GUARD::QAR1(F),XR(g)
- R(g);S_CUTB(a)::QAR2(F)
- B(a);S_CUTR(e)::S(A)
- B(a);S_CUTR(g)::QAR1(F)
- B(a);SBLOCK::QAR1(F)
- B(a);N_GUARD::QAR2(F),XB(a)
- S(b);N_GUARD::B(C)
- S(b);N_GUARD::B(C),XS(b)
- S(i);S_CUTR(g)::QAR1(F)
- S(i);S_CUTB(a)::QAR2(F)
- Refutation
- R(g);CHECK
- Try
- S(A);XR(e)
- Vars
- P(c);OGATEB::B(C)
- R(g);N_GUARD::QAR1(F)
- R(g);N_GUARD::QAR1(F),XR(g)
- R(g);S_CUTB(a)::QAR2(F)
- B(a);N_GUARD::QAR2(F)
- B(a);S_CUTR(g)::QAR1(F)
- B(a);SBLOCK::QAR1(F)
- B(a);N_GUARD::QAR2(F),XB(a)
- S(b);N_GUARD::B(C)
- S(b);N_GUARD::B(C),XS(b)
- S(i);S_CUTR(g)::QAR1(F)
- S(i);S_CUTB(a)::QAR2(F)
- Refutation
- B(a);
- Try
- B(C);
- Vars
- R(g);N_GUARD,XS(A)::QAR1(F)
- B(a);N_GUARD,XS(A)::QAR2(F)
- B(a);S_CUTR(e)::S(A)
- R(e);N_GUARD::S(A),XR(e)
- R(e);S_CUTB(a)::QAR2(F)
- R(g);N_GUARD::QAR1(F)
- R(g);N_GUARD::QAR1(F),XR(g)
- R(g);S_CUTB(a)::QAR2(F)
- B(a);S_CUTR(g)::QAR1(F)
- B(a);SBLOCK::QAR1(F)
- B(a);N_GUARD::QAR2(F),XB(a)
- S(b);N_GUARD::B(C)
- S(b);N_GUARD::B(C),XS(b)
- S(i);S_CUTR(g)::QAR1(F)
- S(i);S_CUTB(a)::QAR2(F)
- Refutation
- P(c);
- Try
- B(C);
- Threat
- QAR1(F)
- Vars
- B(a);OGATE,XB(C)::QAR2(F),XB(a)
- S(b);N_GUARD::B(C)
- Refutation
- S(i);
- Try
- Actual
- Q(F);
- Vars
- K(f);S_FLIGHT::QAB1(F)
- R(g);N_GUARD,XS(A)::QAR1(F)
- B(a);N_GUARD,XS(A)::QAR2(F)
- B(a);S_CUTR(e)::S(A)
- R(e);N_GUARD::S(A),XR(e)
- R(e);S_CUTB(a)::QAR2(F)
- R(g);N_GUARD::QAR1(F)
- R(g);N_GUARD::QAR1(F),XR(g)
- R(g);S_CUTB(a)::QAR2(F)
- B(a);S_CUTR(g)::QAR1(F)
- B(a);SBLOCK::QAR1(F)
- B(a);N_GUARD::QAR2(F),XB(a)
- S(b);N_GUARD::QAB1(F)
- S(b);N_GUARD::QAB1(F),XS(b)
- S(i);S_CUTR(g)::QAR1(F)
- S(i);S_CUTB(a)::QAR2(F)
- P(c);OGATEB::B(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).