81
problems
× 9 |
12
programming
|
6
pawn-promotion
|
1
scandinavian-defense
|
47
records
× 4 |
12
kings
|
5
slav-defense
|
0
kings-gambit
× 2 |
40
checkmate
× 3 |
9
candidates
|
3
alekhines-defense
|
0
sicilian-defense
|
30
chess-variants
× 3 |
8
books
|
3
notation
|
0
rules
|
25
forced-move
× 2 |
8
repertoire
|
3
handicapping
|
0
transpositions
|
23
opening
× 9 |
8
combinations
|
3
analysis
|
0
queens-gambit
|
18
mathematics
|
6
history
× 2 |
2
psychology
|
0
terminology
|
17
check
× 3 |
6
evaluation
|
1
gambits
× 2 |
0
knights
|
13
castling
|
6
losing-chess
|
1
blitz
|
