Favorite Mansfield Cross Checkers

Comins Mansfield was the greatest two move composer and my personal favorite chess problem composer.  Every single one of his problems is a work of art.  So when I thought about a blog post of Mansfield's problems I realized that there would be too many problems for just one entry.  I would have to pick a specific topic.  In a two move problem it is nice when white will let his king be checked.  When white counters this check with another check that does not capture the checking piece it is called a cross check.  Mansfield, as in every other aspect of the two mover, was an absolute master of the cross check.  

Mansfield, Comins
Good Companions 1917

#2

11 + 5

Here is one of Mansfield's most famous problems.  The key interferes with wRe3 and grants a flight square.  More importantly the key unpins bSc4 allowing black to fire his battery at the wK.  The three white batteries all fire and what transpires is amazing.

Mansfield, Comins
La Settimana Enigmistica 1935

#2

9 + 7

White has a half battery set up on the 6th rank.  Two other batteries are aimed at the king.  This time the wK walks into trouble.  What follows is five cross checks: four from blacks R+B battery and one from the bR on e1.

Mansfield, Comins
British Chess Federation 19th Tournament 1935

#2

8 + 8

This time the key gives the bK two flight squares allowing black to use its royal battery.  No white pawns were used in this masterpiece. 

Mansfield, Comins
Adventures in Composition 1944

#2

11 + 9

Here is a problem that Mansfield stuck at the beginning of his book Adventures in Composition (an absolute classic).  The B+K battery is ready to be fired but the king is bottled up.  The key gives a flight square and the four thematic black defenses do three things: check the wK, self pin, and open a flight for the wK to move.   

Mansfield, Comins
L'Echiquier 1929

#2

9 + 8

We end with a gem that only has one cross check but it is beautiful one.  The key unpins the bQ, allowing her to check by capturing on d5.  However, now she is pinned again and the bishop may move right back to the square it started on.  In other words: a cross check switch back.