# Problems using an extended notation

This is a hard version of the extended notation problems. The solutions are the same so you have to choose one set or the other to solve. The difference is that in the hard version sometimes just the file or just the rank appears, which makes the problems more challenging.

(nothing)

### ply 6

```5.278  3... ?g~? f~  #
5.264  3... ?b~? b~  #
5.261  3... ?f~? d~  #
5.261  3... ?d~? e~  #
5.241  3... ?f~- f~  #
5.204  3... ?h~- f~  #
5.200  3... ?h~- d~  #
5.171  3... ?b~x?~~  #
4.288  3... ?f~x?f~  #
4.251  3... ?h~x?f~  #
```

### ply 7

```5.240  4. ?g~- d~  #
5.225  4. ?g~- c~  #
5.225  4. ?f~- c~  #
5.221  4. ?b~- c~  #
5.199  4. ?a~- d~  #
5.192  4. ?a~- f~  #
5.183  4. ?a~- c~  #
5.182  4. ?~4? b~  #
5.150  4. ?~4- c~  #
5.102  4. ?b7- ~~  #
4.350  4. ?b~? g5  #
4.343  4. Qg~- f~  #
4.298  4. ?f4- f~  #
4.290  4. ?b~xPf~  #
4.247  4. ?c5- f~  #
4.225  4. ?~7? f5  #
3.470  4. ?g3? g5  #
```

### ply 8

```5.621  4... Pb~? ~~  #
5.123  4... ?~3? b~  #
5.120  4... ?~1? c~  #
4.556  4... ?g~? c5  #
4.554  4... ?g~? b5  #
4.258  4... ?g6xQ~~  #
4.257  4... ?b~xQg~  #
4.255  4... ?a~xPf~  #
4.122  4... ?a4xB~~  #
4.104  4... ?h2xB~~  #
3.365  4... ?b~xBf4  #
3.361  4... ?f~xBc4  #
3.360  4... ?g~xBc4  #
3.339  4... ?a6xBc~  #
3.325  4... ?b5xBc~  #
3.310  4... ?c4xPf~  #
3.298  4... ?c5xB~4  #
3.281  4... ?b4xBc~  #
```

### ply 9

```4.928  5. N~2? ~3  #
4.701  5. ?~2xP~4  #
4.549  5. ?d~? h4  #
4.535  5. ?f~? b4  #
4.525  5. ?b~? h4  #
4.493  5. ?h~? b4  #
4.238  5. ?e6? ~5  #
4.147  5. ?f8xB~~  #
4.139  5. ?~7xNe~  #
3.647  5. Qa3? ~4  #
3.618  5. Qd~x?~4  #
3.444  5. ?e3- e5  #
3.423  5. ?f3xNd~  #
3.385  5. ?f~xNf5  #
3.377  5. ?g~xNf5  #
3.343  5. ?h~xNf5  #
3.311  5. ?c8x?f~  #
3.308  5. ?d6xNd~  #
```

### ply 10

```6.052  5... R~~? ~~  .#
5.215  5... ?g5? ~~  ?#
4.664  5... ?~7xQ~5  #
4.394  5... ?~7xN~1  #
4.355  5... ?d5? a~  #
4.291  5... Bf2? ~~  # (used in the Messigny 2004 retro solving tourney)
4.259  5... B~1? ~4  #
4.239  5... ?f~- h3  #.
4.234  5... ?~6- h3  #
4.227  5... ?f~- e2  #
4.169  5... ?h1- f~  #
4.133  5... ?~1xQf~  #
4.125  5... ?~1xBb~  #
4.117  5... R~~- h1  #
3.556  5... Bg6? ~7  #
3.553  5... Bb6? d~  #
3.551  5... Bb6? ~7  #
3.292  5... ?f~xNe2  #
3.290  5... ?b2xPb~  #
3.251  5... ?b1xQb~  #
3.244  5... ?a1xNd~  #
3.212  5... ?a1xQ~4  #
```

### ply 11

```4.657  6. N~~? d3  ##
4.570  6. ?b~? a3  ?#
4.362  6. ?b~? c5  .#
4.354  6. ?b4? e~  .#
4.323  6. Bb~? ~6  ?#
4.277  6. ?g~xRd~  #
4.260  6. ?g~? f~=N#
4.248  6. ?h~xRd~  #
4.244  6. ?a~xRd~  #
4.226  6. B~~- h7  #.
3.741  6. ?~2xQf4  #
3.631  6. Q~2xRb~  #
3.624  6. ?d2xR~5  #
3.571  6. Ke~? e4  #
3.540  6. ?g~xNd4  #
3.516  6. Bb~? a5  ?#
3.434  6. Qe~xRd~  #
3.382  6. ?h3xRf~  #
3.370  6. Rf~- g5  #
3.364  6. ?b~xRg5  #
3.359  6. Rc~- g5  #
3.352  6. Rb~- g5  #
3.341  6. ?b4xR~5  #
3.337  6. ?~4xRc5  #
3.326  6. Ra~- g5  #
3.260  6. ?a5xRc~  #
2.490  6. ?f4xRf5  #
2.437  6. ?d5xRg5  #
```