[Retros] "half" proof games

[Pedro Quaresma]

NDE> There are certainly no shorter...  There are other exmaples in 3,
NDE> such as  1 f3 ... 2 g4 ... 3 fxe4 ...#, and at least 4 and 5 look

Ulrich> or 1.e4 ... 2.ed5: ... 3.Ke2 and 1.d3 ... 2.Kd2 ... 3.Kc3

Noam Elkies>The first of these works; the second is cooked (1...e5 or e6;
Noam Elkies>2...Qe7 or Qh4, 3...Qb4#).

Also: 1...c5, 2...Qb6, 3...Qb4#




--
Pedro R. Quaresma
Salvador Caetano IMVT
Div. Sistemas de Informação / Systems and Information Division
Administração e Desenvolvimento Lotus Notes / 
Lotus Notes Administration and Development
pedro.quaresma at salvadorcaetano.pt // +351 22 7867000 (ext. 3492)

Toyota Prius '01, Aqua Ice Opalescent, 38K km., "Esperanza"
 
'People don't quit playing because they grow old. They grow old because 
they quit playing.' - Oliver Wendell Holmes 




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