Philidor Position b-g or c-f file
Philidor Position b-g file
The situation on b- or g-Pawn is a little different then pawn on d- or e-file, defender has more chances while defensing against b-pawn or g-pawn.
In the above position black’s king is perfectly placed at promotional square. If Black moves first, it is draw at once with
- ... Rh6+
- Kc5 Rg6,
Now keep the philidor principle in mind and checking the White’s king from sixth rank, and wait for white to advance his pawn.
- b6 Rg1,
Now Black can check from files and draw easily.
But if White moves first
- Ka6 Rh6+
- 2.b6 Rh8
Black covers the eight rank.
- Rb7+ Ka8
It would be suicidal if black goes
- ... Kc8
- Ka7 Rh1
- Rb8+ Kd7
- Rg8 Ra1+
This way white forces the black’s king from promotional square, and soon white will achieve the Lucena position.
So black should move
- Ra7+ Kb8
White can't make any further progress.
Philidor Position c-f file
The c-pawn or f-Pawn in following position is somewhat similar to above position, but passer is a little closer to the center makes all the difference. Black could only save the game only if he had the first move. He could play the Philidor defense technique.
- ... Ra6+
- Ke5 Re6
And wait for the white to advance with
- f6 Rc1
And forcing a draw.
But if it is White's move then it a win for white. To know how it is a win for white see the following link.