user14069: Assuming: Queen=9, Rook=5, Bishop=3, Knight=3, Pawn=1
The below position is evaluated at +411 for White but he still loses by force (mate in 9, pawn promotes to a bishop just for the fun of it)
Is that the maximum possible material advantage while still losing? Can you find a position with more than 411 material advantage and still lose?


user30441: These two are also worth 530 points. It rarely happen in games.



user11629: Just for reference: The maximum number that is actually achievable in a real game is of course when one side promotes all its pawns to queens and gets mated by a single pawn. The value would then be 9*9+2*5+4*3-1 = +102
One possible mate:
8/8/8/8/8/RRN4k/QQQQB1pN/QQQQQ1BK w - - 0 1


user3270: [FEN "QQQQQbBk/QQQQQBQB/QQQQQRBK/QQQQQQQQ/QQQQQQQQ/QQQQQQQQ/QQQQQQQQ/QQQQQQQQ b - - 0 1"]

1... Bxg7

I'm getting +518 for this.
That could be improved to +520 if we allow a black pawn on the 8th rank instead of the bishop, since this position is obviously already impossible for a number of other reasons.
Edit:
Found a better one.
QQQQQQNk/QQQQQQNp/QQQQQQKN/QQQQQQQQ/QQQQQQQQ/QQQQQQQQ/QQQQQQQQ/QQQQQQQQ b - - 0 1

This is +530.

14069: <p>Assuming: Queen=9, Rook=5, Bishop=3, Knight=3, Pawn=1</p>

<p>The below position is evaluated at +411 for White but he still loses by force (mate in 9, pawn promotes to a bishop just for the fun of it)</p>

<p>Is that the maximum possible material advantage while still losing? Can you find a position with more than 411 material advantage and still lose?</p>

<p><a href="https://i.stack.imgur.com/mJKXR.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mJKXR.png" alt="enter image description here"></a></p>
 30441: <p>These two are also worth 530 points. It rarely happen in games.</p>
<p><img src="https://i.stack.imgur.com/2vLnt.png" alt="wild hourses" /></p>
<p><img src="https://i.stack.imgur.com/7iwsm.png" alt="check mate" /></p>
 11629: <p>Just for reference: The maximum number that is actually achievable in a real game is of course when one side promotes all its pawns to queens and gets mated by a single pawn. The value would then be 9*9+2*5+4*3-1 = +102</p>

<p>One possible mate:</p>

<pre><code>8/8/8/8/8/RRN4k/QQQQB1pN/QQQQQ1BK w - - 0 1
</code></pre>
 3270: <pre><code>[FEN "QQQQQbBk/QQQQQBQB/QQQQQRBK/QQQQQQQQ/QQQQQQQQ/QQQQQQQQ/QQQQQQQQ/QQQQQQQQ b - - 0 1"]

1... Bxg7
</code></pre>

<p>I'm getting +518 for this.</p>

<p>That could be improved to +520 if we allow a black pawn on the 8th rank instead of the bishop, since this position is obviously already impossible for a number of other reasons.</p>

<p>Edit:
Found a better one.</p>

<pre><code>QQQQQQNk/QQQQQQNp/QQQQQQKN/QQQQQQQQ/QQQQQQQQ/QQQQQQQQ/QQQQQQQQ/QQQQQQQQ b - - 0 1
</code></pre>

<p>This is +530.</p>
