Two easy positions-Christmas gifts for your engines

[tano-urayoan]

From the recent tournament in Pamplona.

White tries to draw
[d] 8/3k2b1/4p2p/6p1/4N1P1/4K2P/8/8 w - - 0 1

White realizes his advantage
[d] 8/4r1nR/6P1/3B1k2/1pK5/1P6/8/8 w - -

[beachknight]

Man, I solved both at the first sight.
Are there some more difficult ones?

Best,

[P. Villanueva]

The second position seems easier for a human player than for a engine.

[tano-urayoan]

Here is a variation of the first one white to play and draw
[d] 8/3k2b1/4p2p/8/4N1Pp/4K3/8/8 w - -