James’ Thought Spot

Black to move. What is Black’s best move? Realize that White is to mate in one with Nf6!++

Here we go with home-brews.

How is:
8-3=1
True?

Answer saturday.

There once was a man who had married thirty women. Yet he never had a wife. How?

Find the error in this mathematical conundrum. Answer Saturday.

1=1 [To start]
a=b [Got it?]
a•a=b•a [Both sides multiplied by a]
a^2=ab [Which is]
a^2-b^2=ab-b^2 [Subtraction axiom with b^2]
(a+b)(a-b)=b(a-b) [Factored]
(a+b)(a-b)/(a-b)=b(a-b)/(a-b) [Divide both sides by (a-b)]
a+b=b [Which is]
b+b=b [Unnecessary step but shows the result easier]
2b=b [Which is]
2=1 [Equals]