MESON Chess Problem Database
Problem Display
PID: 198754 (3Nb3/4N1n1/3p1n2/4k1B1/3p4/1Q3B2/1P1p4/3K4 w - - 0 1)
Padulli, Giuseppe
L'Alfiere di Re, 1921
#2
7 + 7
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Ba4
- 2.Sf7#
- 1...Bb5
- 2.Sf7#
- 1...Bh5
- 2.Sdc6#
- 1...Bc6
- 2.Sdxc6#
- 2.Sf7#
- 1...Bg6
- 2.Sdc6#
- 1...Bd7
- 2.Sf7#
- 1...Bf7
- 2.Sdc6#
- 2.Sxf7#
- 1...Se4
- 2.Qd5#
- 1...Sg4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sfh5
- 2.Qd5#
- 1...Sd7
- 2.Sdc6#
- 2.Qd5#
- 1...Sh7
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...Sf5
- 2.Qe6#
- 1...Sgh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...d3
- 2.Qc3#
- 1...d5
- 2.Qb8#
- 1...Ba4
- Tries
- 1.Kxd2?
- 1...d3
- 2.Qc3#
- 1...d5
- 2.Qb8#
- 1...Ba4
- 2.Sf7#
- 1...Bb5
- 2.Sf7#
- 1...Bh5
- 2.Sdc6#
- 1...Bc6
- 2.Sdxc6#
- 2.Sf7#
- 1...Bg6
- 2.Sdc6#
- 1...Bd7
- 2.Sf7#
- 1...Bf7
- 2.Sdc6#
- 2.Sxf7#
- 1...Sg4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sfh5
- 2.Qd5#
- 1...Sd7
- 2.Sdc6#
- 2.Qd5#
- 1...Sh7
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...Sf5
- 2.Qe6#
- 1...Sgh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Se4+!
- 1...d3
- 1.Bh1?
- threat
- 2.Qg3#
- 1...d3
- 2.Qc3#
- 1...Ba4
- 2.Sf7#
- 1...Se4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sfh5
- 2.Qd5#
- 1...Sf5
- 2.Qe6#
- 1...Sgh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Bh5+!
- threat
- 1.Bg2?
- threat
- 2.Qg3#
- 1...d3
- 2.Qc3#
- 1...Ba4
- 2.Sf7#
- 1...Se4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sfh5
- 2.Qd5#
- 1...Sf5
- 2.Qe6#
- 1...Sgh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Bh5+!
- threat
- 1.Qc4?
- 1...d5
- 2.Qc7#
- 1...Bb5
- 2.Sf7#
- 1...Bh5
- 2.Sdc6#
- 1...Bc6
- 2.Sdxc6#
- 2.Sf7#
- 1...Bg6
- 2.Sdc6#
- 1...Bd7
- 2.Sf7#
- 1...Bf7
- 2.Sdc6#
- 2.Sxf7#
- 1...Se4
- 2.Qd5#
- 1...Sg4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sfh5
- 2.Qe2#
- 2.Qd5#
- 1...Sd7
- 2.Sdc6#
- 2.Qe2#
- 2.Qd5#
- 1...Sh7
- 2.Qe2#
- 2.Qd5#
- 1...Sg8
- 2.Qe2#
- 2.Qd5#
- 1...Sf5
- 2.Qe6#
- 1...Sgh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...d3
- 2.Bf4#
- 2.Qc3#
- 2.Qf4#
- 1...Ba4+!
- 1...d5
- 1.Qe3+?
- 1...Se4
- 2.Qf4#
- 2.Qxe4#
- 1...dxe3!
- 1...Se4
- 1.Qb5+?
- 1...Sd5
- 2.Qxd5#
- 1...d5
- 2.Qb8#
- 1...Bxb5!
- 1...Sd5
- 1.Kxd2?
- Keys
- 1.Qc2!
- 1...d3
- 2.Qc3#
- 1...d5
- 2.Qc7#
- 1...Ba4
- 2.Sg6#
- 1...Bb5
- 2.Sg6#
- 1...Bh5
- 2.Sec6#
- 1...Bc6
- 2.Sexc6#
- 2.Sg6#
- 1...Bg6
- 2.Sec6#
- 2.Sxg6#
- 1...Bd7
- 2.Sg6#
- 1...Bf7
- 2.Sec6#
- 1...Se4
- 2.Qxe4#
- 1...Sg4
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...Sfh5
- 2.Qe4#
- 1...Sd7
- 2.Sec6#
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...Sg8
- 2.Qe4#
- 1...Sf5
- 2.Qxf5#
- 1...Sgh5
- 2.Qf5#
- 1...Se6
- 2.Qf5#
- 1...d3
- 1.Qc2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 14
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- B(g);N_GUARD,P_PINQ(C)::S(G)
- B(g);N_GUARD::S(G)
- B(g);N_GUARD,P_PINB(D)::S(G)
- S(e);N_GUARD::QAR1(C)
- S(e);N_GUARD::QAR1(C),XS(e)
- S(f);N_GUARD::QAR1(C)
- S(f);N_GUARD::QAR1(C),XS(f)
- P(b);OGATEB::QAB(C)
- P(d);OGATEB::QAB(C)
- Tries
- Try
- K(A);P-FLIGHT,XP(a)
- Vars
- P(b);OGATEB::QAB(C)
- P(d);OGATEB::QAB(C)
- B(g);N_GUARD::S(G)
- S(e);N_GUARD::QAR1(C)
- S(e);N_GUARD::QAR1(C),XS(e)
- S(f);N_GUARD::QAR1(C)
- S(f);N_GUARD::QAR1(C),XS(f)
- Refutation
- S(e);CHECK
- Try
- B(D);
- Threat
- QAB(C)
- Vars
- P(b);OGATEB::QAB(C)
- B(g);N_GUARD,P_PINQ(C)::S(G)
- S(e);N_GUARD::QAR1(C)
- S(e);N_GUARD::QAR1(C),XS(e)
- S(f);N_GUARD::QAR1(C)
- S(f);N_GUARD::QAR1(C),XS(f)
- Refutation
- B(g);CHECK
- Try
- B(D);
- Threat
- QAB(C)
- Vars
- P(b);OGATEB::QAB(C)
- B(g);N_GUARD,P_PINQ(C)::S(G)
- S(e);N_GUARD::QAR1(C)
- S(e);N_GUARD::QAR1(C),XS(e)
- S(f);N_GUARD::QAR1(C)
- S(f);N_GUARD::QAR1(C),XS(f)
- Refutation
- B(g);CHECK
- Try
- Q(C);
- Vars
- P(d);OGATEB::QAB(C)
- B(g);N_GUARD::S(G)
- B(g);N_GUARD,P_PINB(D)::S(G)
- S(e);N_GUARD::QAR1(C)
- S(e);N_GUARD::QAR1(C),XS(e)
- S(f);N_GUARD::QAR1(C)
- S(f);N_GUARD::QAR1(C),XS(f)
- Refutation
- B(g);CHECK
- Try
- Q(C);CHECK
- Refutation
- P(b);XQ(C)
- Try
- Q(C);CHECK
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAR1(C),XS(e)
- P(d);OGATEB,P_SPINP(d)::QAB(C)
- Refutation
- B(g);XQ(C)
- Try
- Actual
- Q(C);
- Vars
- P(b);OGATEB::QAB(C)
- P(d);OGATEB::QAB(C)
- B(g);N_GUARD,P_PINQ(C)::S(F)
- B(g);N_GUARD::S(F)
- B(g);N_GUARD,P_PINB(D)::S(F)
- S(e);N_GUARD::QAR1(C),XS(e)
- S(e);N_GUARD::QAR1(C)
- S(f);N_GUARD::QAR1(C),XS(f)
- S(f);N_GUARD::QAR1(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).