user15543: I am well aware that Fool's Mate exists. But how many two move checkmates exist in total?

user4393: 8 different ways.
2 different ways for f3/f4. 2 different ways for e6/e5. 2 different ways for changing the move order between g4 and f3/f4.

user18168: I agree with the previously-given answer from Matthew Liu (please give it the checkmark), but I’ll add the standard notation of the solutions since you ask:
1.f3 e5 2.g4 Qh4#
1.f3 e6 2.g4 Qh4#
1.f4 e5 2.g4 Qh4#
1.f4 e6 2.g4 Qh4#
1.g4 e5 2.f3 Qh4#
1.g4 e6 2.f3 Qh4#
1.g4 e5 2.f4 Qh4#
1.g4 e6 2.f4 Qh4#

15543: <p>I am well aware that Fool's Mate exists. But how many two move checkmates exist in total?</p>
 4393: <p>8 different ways.
2 different ways for f3/f4. 2 different ways for e6/e5. 2 different ways for changing the move order between g4 and f3/f4.</p>
 18168: <p>I agree with the previously-given answer from Matthew Liu (please give it the checkmark), but I’ll add the standard notation of the solutions since you ask:</p>

<p>1.f3 e5 2.g4 Qh4#</p>

<p>1.f3 e6 2.g4 Qh4#</p>

<p>1.f4 e5 2.g4 Qh4#</p>

<p>1.f4 e6 2.g4 Qh4#</p>

<p>1.g4 e5 2.f3 Qh4#</p>

<p>1.g4 e6 2.f3 Qh4#</p>

<p>1.g4 e5 2.f4 Qh4#</p>

<p>1.g4 e6 2.f4 Qh4#</p>
