MESON Chess Problem Database
Problem Display
PID: 19462 (4Q3/4n3/5pb1/2n5/1Ppk4/8/2PPP2B/1K2N1bB w - - 0 1)
van Dijk, Nils Gustav Gerard
1st Prize, American Chess Bulletin, 1954
#2
9 + 7
| 3105 | FIDE Album (1945-1955) | 1964 |
SOLUTION
- SOUND
- Sets
- 1...Bxc2+
- 2.Sxc2#
- 1...Bh5
- 2.c3#
- 1...Bf7
- 2.c3#
- 1...Bxe8
- 2.c3#
- 1...Sd3
- 2.c3#
- 1...Sd5
- 2.Sf3#
- 1...Sf5
- 2.c3#
- 1...Sc6
- 2.Bxg1#
- 1...Sc8
- 2.Bxg1#
- 1...Sg8
- 2.Bxg1#
- 1...f5
- 2.Qh8#
- 2.c3#
- 1...Bxc2+
- Tries
- 1.Qc6?
- threat
- 2.Sf3#
- 2.Qxc5#
- 2.Qxf6#
- 1...Bxc2+
- 2.Sxc2#
- 1...Bxh2
- 2.Sf3#
- 2.Qxc5#
- 1...c3
- 2.Qxc5#
- 1...Be4
- 2.Qxc5#
- 1...Bh5
- 2.Qxc5#
- 2.Qxf6#
- 2.c3#
- 1...Sb3
- 2.Sf3#
- 2.Qxf6#
- 1...Sd3
- 2.Sf3#
- 2.c3#
- 1...Sa4
- 2.Sf3#
- 2.Qxf6#
- 1...Se4
- 2.Sf3#
- 1...Sa6
- 2.Sf3#
- 2.Qxf6#
- 1...Se6
- 2.Sf3#
- 1...Sb7
- 2.Sf3#
- 2.Qxf6#
- 1...Sd7
- 2.Sf3#
- 1...Sd5
- 2.Qxd5#
- 2.Qxc5#
- 1...Sg8
- 2.Sf3#
- 2.Qd5#
- 2.Qxc5#
- 2.Qd6#
- 1...f5
- 2.Sf3#
- 2.Qxc5#
- 2.Qf6#
- 2.c3#
- 1...Sxc6!
- threat
- 1.Qd7+?
- 1...Sd5
- 2.Qxd5#
- 1...Sxd7!
- 1...Sd5
- 1.Qxe7?
- threat
- 2.Bxg1#
- 2.Qxc5#
- 2.Qd6#
- 2.Qxf6#
- 1...Bxc2+
- 2.Sxc2#
- 1...Bxh2
- 2.Qxc5#
- 2.Qe3#
- 2.e3#
- 1...Be4
- 2.Qxc5#
- 1...c3
- 2.Qxc5#
- 1...Bf2
- 2.Qxc5#
- 2.Qd6#
- 2.Qxf6#
- 1...Be3
- 2.Qxc5#
- 2.Qd6#
- 2.Qxf6#
- 2.Qxe3#
- 1...Bf7
- 2.Bxg1#
- 2.Qxc5#
- 2.Qxf6#
- 2.c3#
- 1...Sb3
- 2.Bxg1#
- 2.Qd6#
- 2.Qxf6#
- 2.Qd8#
- 2.Qd7#
- 1...Sd3
- 2.Qd6#
- 2.Qd8#
- 2.Qd7#
- 2.c3#
- 1...Sa4
- 2.Bxg1#
- 2.Qd6#
- 2.Qxf6#
- 2.Qd8#
- 2.Qd7#
- 1...Sa6
- 2.Bxg1#
- 2.Qd6#
- 2.Qxf6#
- 2.Qd8#
- 2.Qd7#
- 1...Se6
- 2.Qd6#
- 2.Qxf6#
- 2.Qd7#
- 1...Sb7
- 2.Bxg1#
- 2.Qxf6#
- 1...Sd7
- 2.Bxg1#
- 2.Qd6#
- 2.Qxd7#
- 1...f5
- 2.Bxg1#
- 2.Be5#
- 2.Qxc5#
- 2.Qd6#
- 2.Qf6#
- 2.Qe5#
- 2.Qg7#
- 2.c3#
- 1...Se4!
- threat
- 1.Qd8+?
- 1...Sd5
- 2.Qxd5#
- 1...Sd7!
- 1...Sd5
- 1.Qc6?
- Keys
- 1.Qb5!
- threat
- 2.Qxc5#
- 1...Bxc2+
- 2.Sxc2#
- 1...Sb3
- 2.Bxg1#
- 1...Sd3
- 2.c3#
- 1...Sa4
- 2.Bxg1#
- 1...Se4
- 2.Sf3#
- 1...Sa6
- 2.Bxg1#
- 1...Se6
- 2.Bxg1#
- 1...Sb7
- 2.Bxg1#
- 1...Sd7
- 2.Bxg1#
- threat
- 1.Qb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 8
- Sets
- B(f);CHECK,XP(D)::S(B),XB(f)
- B(f);N_PINP(D)::P(D)
- B(f);N_PINP(D),XQ(I)::P(D)
- S(d);N_PINP(D)::P(D)
- S(g);SBLOCK::S(B)
- S(g);N_PINP(D)::P(D)
- S(g);::B(G),XB(a)
- Tries
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- B(f);CHECK,XP(D)::S(B),XB(f)
- P(b);::QAB1(I),XS(d)
- B(f);::QAB1(I),XS(d)
- S(d);N_PINP(D)::S(B)
- S(d);::S(B)
- Refutation
- S(g);XQ(I)
- Try
- Q(I);CHECK
- Vars
- S(g);N_GUARD,P_SPINS(g)::QAR1(I),XS(g)
- Refutation
- S(d);XQ(I)
- Try
- Q(I);XS(g)
- Threat
- DUALS(4)
- Vars
- B(f);CHECK,XP(D)::S(B),XB(f)
- B(f);::QAB1(I),XS(d)
- P(b);::QAB1(I),XS(d)
- Refutation
- S(d);N_PINP(D)
- Try
- Q(I);CHECK
- Vars
- S(g);N_GUARD,P_SPINS(g)::QAR1(I),XS(g)
- Refutation
- S(d);P_SPINS(d)
- Try
- Actual
- Q(I);
- Threat
- QAB1(I),XS(d)
- Vars
- B(f);CHECK,XP(D)::S(B),XB(f)
- S(d);::B(G),XB(a)
- S(d);N_PINP(D)::P(D)
- S(d);N_PINP(D),SBLOCK::S(B)
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).