[Retros] Illegal moves by grandmasters

[A J Mestel]

Yes...and Noam has quite a nice study based on the 50move rule, which 
he'll doubtless share with us, if someone jogs his memory...J

On Wed, 11 May 2011, Joost de Heer wrote:


> On 05/11/2011 03:01 PM, A J Mestel wrote:

>

>>  I have never for example, seen a problem/study which specified that

>>  "White has touched his rook and an opponents pawn simultaneously, and so

>>  must

>>  either move the rook or capture the pawn (or both.)"

>>

>>  Or "White only has 3 seconds for his next 10 moves. Physically, this

>>  requires

>>  that the distance of the moving piece to the clock (the left-hand side of

>>  the

>>  board) must on average be less than 2 squares per move."

>

> Something close:

>

> K. Hannemann

> Chess Amateur 1927

> 8/8/K6R/8/3k4/8/6R1/8

> Position after 94 plies without capture or pawn move have been played. White 

> wins

>

> 1. Rd6! Ke4 2. Rf2 Ke5/Ke3 3. Rf4/Rd4

> 1...Kc4 2. Rb2 Kc5/Kc3 3. Rb4/Rd4

> 1...Ke3 2. Rd4 Kf3 3. Re4

> 1...Ke5 2. Rg4 Kf5 3. Re6

> 1...Kc5 2. Rg4

> 1...Kc3 2. Kb5 Kb3 3. Rd3#

>

> Joost

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