# L-shape Pawn Formation

“Pawns are like buttons. Lose too many and the pants fall down by themselves.”
George Koltanowski

The knight moves in L-shape right? We all learn that at the very beginning and struggle at first to figure out the move. I can go one square to the right and two forward or two squares to the right and one forward? That could be very confusing. Add the other directions and permutations of square choices and you will leave any beginner numb in front of so many possibilities. Do you know of any other area of the game where the L-shape is of importance? If you do and the title of this article gave it away, you have either studied our app lesson 26, level 4 (thank you for that!) or you are a very strong player and have known this for a while now.

Here is a study by L Kubbel to test your knowledge:

It is white to move. What does your gut feeling tells you about the possible result here? Can White win? How about Black? Is it maybe a draw?

As always let’s look at this together to make sure you get it right. Analysis:

• In king and pawns endgames we always look for passed pawns: each side has 2
• The White pawns are on the edge and doubled; this reduces their value quite a bit
• The Black pawns are separated by a file
• Both kings are in the imaginary square of all opposing pawns, meaning they can stop them from promoting
• White looks to have no more than a draw; even if it captures both Black pawns, the Black king will easily reach the a8-corner and stop the promotion
• Black could have a chance to win since the White king must stop 2 passed pawns in the same time
• If the Black king manages to capture both White pawns, Black will probably win

OK, this does not sound very promising for White. When I worked on the puzzle, the first thing I looked at was how to deal with the Black pawns. The b5-pawn being the closest is an obvious first target. How would Black respond to that? Well, here you need to know about the L-shape pawn formation. That formation helps 2 passed pawns separated by a file fight the opposing king and survive. If that is the case and Black can easily reach an L-shape by playing d7-d6, what can White do? Standing still does not work because Black will capture the White pawns and win. Bringing the king forward though, would result in one of the Black pawns promoting.

Let’s pause for a moment. Take a deep breath and look for options. It looks like you cannot stop both Black pawns. What can you do then? Hmm, if the b-pawn promotes and the White king is on the a-file, we might get a stalemate. That is awesome! The other option with the d-file promoting, it is a clear loss. OK, now you have a plan: capture the d-pawn and run to the a-file; be careful on the timing though (see line C)! Hope you liked it and it got you interested about this important endgame aspect. All left now is raw calculation. Here is the solution to help you out:

Valer Eugen Demian

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