MESON Chess Problem Database
Problem Display
PID: 206267 (2K5/2P1Np2/2Q1p2p/2n3PP/5kPB/2P4p/3P1N1P/8 w - - 0 1)
Forti, Mario
L'Alfiere di Re, 1925
#2
12 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ke5
- 2.Bg3#
- 1...Sb3
- 2.Qe4#
- 1...Sd3
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sa6
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...e5
- 2.Qf6#
- 1...hxg5
- 2.Bg3#
- 1...f5
- 2.Sg6#
- 1...f6
- 2.Sg6#
- 1...Ke5
- Tries
- 1.Kd8?
- 1...Ke5
- 2.Bg3#
- 1...hxg5
- 2.Bg3#
- 1...Se4
- 2.Qxe4#
- 1...Sb3
- 2.Qe4#
- 1...Sd3
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Sa6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...e5
- 2.Qf6#
- 1...f5
- 2.Sg6#
- 1...f6
- 2.Sg6#
- 1...Sb7+!
- 1...Ke5
- 1.Sxh3+?
- 1...Ke5
- 2.Bg3#
- 2.d4#
- 1...Kxg4!
- 1...Ke5
- 1.Sd5+?
- 1...Ke5
- 2.Bg3#
- 2.d4#
- 1...exd5
- 2.Qf6#
- 1...Kf3!
- 1...Ke5
- 1.Qg2?
- threat
- 2.Qg3#
- 1...Ke5
- 2.Bg3#
- 2.Qg3#
- 1...Se4
- 2.Sd3#
- 2.Qxe4#
- 1...hxg2!
- threat
- 1.Qf3+?
- 1...Ke5
- 2.Bg3#
- 2.Qg3#
- 1...Kxf3!
- 1...Ke5
- 1.Qd5?
- threat
- 2.Bg3#
- 1...Se4
- 2.Qxe4#
- 1...e5
- 2.Qxf7#
- 1...f5
- 2.Sg6#
- 1...exd5!
- threat
- 1.Qd6+?
- 1...e5
- 2.Qf6#
- 1...Kf3!
- 1...e5
- 1.c4?
- 1...hxg5
- 2.Bg3#
- 1...Se4
- 2.Qxe4#
- 1...e5
- 2.Qf6#
- 1...Sb3
- 2.Qe4#
- 1...Sd3
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Sa6
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...f5
- 2.Sg6#
- 1...f6
- 2.Sg6#
- 1...Ke5!
- 1...hxg5
- 1.gxh6?
- 1...Se4
- 2.Qxe4#
- 1...e5
- 2.Qf6#
- 1...Sb3
- 2.Qe4#
- 1...Sd3
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Sa6
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...f5
- 2.Sg6#
- 1...f6
- 2.Sg6#
- 1...Ke5!
- 1...Se4
- 1.Kd8?
- Keys
- 1.Qh1!
- 1...Ke5
- 2.Bg3#
- 1...hxg5
- 2.Bg3#
- 1...Sb3
- 2.Qe4#
- 1...Sd3
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sa6
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...e5
- 2.Sd5#
- 1...f5
- 2.Sg6#
- 1...f6
- 2.Sg6#
- 1...Ke5
- 1.Qh1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(b);S_FLIGHT::B(F)
- S(c);N_GUARD::QAR1(I)
- S(c);N_GUARD::QAR1(I),XS(c)
- P(d);OGATE::QAR2(I)
- P(e);SBLOCK,XP(G)::B(F)
- P(f);N_GUARD::S(K)
- Tries
- Try
- K(L);P-FLIGHT
- Vars
- K(b);S_FLIGHT::B(F)
- P(e);SBLOCK,XP(G)::B(F)
- S(c);N_GUARD::QAR1(I),XS(c)
- S(c);N_GUARD::QAR1(I)
- P(d);OGATE::QAR2(I)
- P(f);N_GUARD::S(K)
- Refutation
- S(c);CHECK
- Try
- S(B);CHECK,XP(a)
- Refutation
- K(b);P-FLIGHT,XP(E)
- Try
- S(K);CHECK
- Vars
- P(d);OGATE,XS(K)::QAR2(I)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(I);
- Threat
- QAB1(I)
- Refutation
- P(a);XQ(I)
- Try
- Q(I);CHECK
- Refutation
- K(b);P-FLIGHT,XQ(I)
- Try
- Q(I);
- Threat
- B(F)
- Vars
- S(c);N_GUARD::QAR1(I),XS(c)
- P(d);OGATE,SBLOCK::QAR(I),XP(f)
- P(f);N_GUARD::S(K)
- Refutation
- P(d);XQ(I)
- Try
- Q(I);CHECK
- Vars
- P(d);OGATE,P_SPINP(d)::QAR2(I)
- Refutation
- K(b);P-FLIGHT
- Try
- P(D);
- Vars
- P(e);SBLOCK,XP(G)::B(F)
- S(c);N_GUARD::QAR1(I),XS(c)
- P(d);OGATE::QAR2(I)
- S(c);N_GUARD::QAR1(I)
- P(f);N_GUARD::S(K)
- Refutation
- K(b);S_FLIGHT
- Try
- P(G);XP(e)
- Vars
- S(c);N_GUARD::QAR1(I),XS(c)
- P(d);OGATE::QAR2(I)
- S(c);N_GUARD::QAR1(I)
- P(f);N_GUARD::S(K)
- Refutation
- K(b);S_FLIGHT
- Try
- Actual
- Q(I);
- Vars
- K(b);S_FLIGHT::B(F)
- P(e);SBLOCK,XP(G)::B(F)
- S(c);N_GUARD::QAR1(I)
- S(c);N_GUARD::QAR1(I),XS(c)
- P(d);N_GUARD,SBLOCK::S(K)
- P(f);N_GUARD::S(K)
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).