The 4x3 board shows a 70% blue win. Increasingly the winning side has options to make mistakes and lose, but the basic division is clear. Win or loss depend on the choice of the initial removals only. This behaviour probably casts a long shadow. Grabber is unexpectedly flawed in a rather unforeseen way.
However, on the standard 6x6 board humans would have a hard time applying this knowledge.

Red to move - win/lose division

Red win	Blue win	can he lose?
		no
		no
		no

Red win	Blue win	can he lose?
		yes
		no
		no

Red win	Blue win	can he lose?
		yes
		yes
		yes
		yes
		no
		yes
		no
		yes
		no
		yes
		no
		yes
		yes
		yes
		yes
		yes
		no
		no
		no
		no

2nx1 boards
nx2 boards
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