(;PW[Philip Cohen]
PB[Fabio Dulcich]
C[Game from AISE Grand Prix, 1993.  
Fabio Dulcich (Italy) vs Philip Cohen (USA)
Comments by Dulcich (translations from Italian by Cohen)]
GM[9]
GN[Dulcich-Cohen (English)]
GC[Dulcich-Cohen (English)]
;B[c8-c6]
C[]
;C[]
W[a4-c2]
;C[]
B[g8-g6]
;C[]
W[c2:g6]
;C[]
B[c6:g6]
;C[]
W[h7-f7]
;C[]
B[b8-d6]
;C[]
W[h6-f4]
;B[e8-e6]
C[
It is not correct to develop pieces only from one side of the
board but it's necessary to defent against a6:d6 and Black
wanted to avoid playing c1:a3, since capturing disconnected
or unmoved opponent pieces is equivalent to giving an 
advantage to the opponent.]
;W[ a7-c5]
C[

Blocks the Black reply f8c5.]
;B[b1-d3]
C[

A poisoned piece; if a3:d3, f8:c5.]
;C[]
W[a5-d5]
;C[]
B[f1-c4]
;W[a3:d3]
C[An error, I think, because it unblocks f8 without 
giving counterplay.]
;C[]
B[f8:c5]
;C[]
W[h5-e5]
;C[]
B[d8-c7]
;C[]
W[f4:c4]
;B[g1-g3]
C[

Prevents h2:d6.]
;W[f7-f6]
C[

Threatens a2:e6.]
;B[c1-b2]
C[Counterattack threatening e5.]
;W[a2-e6]
C[]
;B[b2-e5]
C[]
;W[h3-f5]
;B[c7-c4]
C[Black tries to isolate a6.]
;C[]
W[h4-f4]
;C[]
B[e1-e4]
;W[e6-g4]
C[Black needs only two moves to finish: g6g4+ 
and d1f3#. White has to do something fast to 

block him.]
;B[c5-d4]
C[Necessary to block d3. If now White plays d3f3 
threatening a6:c4, d5 falls.]
;C[]
W[d3-f3]
;B[c4-c3]
C[There's no hurry to play d1:d5; it's much better
to avoid the dangerous a6:c4 and leave a6 even
more isolated.]
;W[h2-h3]
C[Joins h2 to the group and parries c3:f3.]
;B[g3-h4]
C[Threatens h4:f6, winning next move.]
;W[f6:h4]
C[ The only possible move and also a good threat, 
since now White needs only two moves to win: a6:d6++
follwed by d5e6# or h3e6#.]
;B[d1:d5]
C[ The only possible move and also a good threat, 
since now White needs only two moves to 
win: a6:d6++ follwed by d5e6# or h3e6#.]
;C[]
W[f3-f6]
;C[]
B[g6-f7]
;C[White     Resigns
Unstoppable triple threat: f7e7# e5e7# e4e6#.
]
)
(;PW[Philip Cohen]
PB[Fabio Dulcich]
GM[9]
GN[Dulcich-Cohen (Italian)]
GC[Dulcich-Cohen (Italian)]
C[Game from AISE Grand Prix, 1993.  
Fabio Dulcich (Italy) vs Philip Cohen (USA)
Comments by Dulcich]
;B[c8-c6]
C[]
;C[]
W[a4-c2]
;C[]
B[g8-g6]
;C[]
W[c2:g6]
;C[]
B[c6:g6]
;C[]
W[h7-f7]
;C[]
B[b8-d6]
;C[]
W[h6-f4]
;B[e8-e6]
C[Non e' corretto sviluppare i pezzi solo 
da un lato della scacchiera ma e' indispensabile
difendersi da a6:d6 e il Nero voleva evitare di 
giocare c1:a3, perche' catturare pezzi avversari
slegati o non ancora mossi equivale a dare un vantaggio
all'avversario.]
;W[ a7-c5]
C[Blocca la replica del Nero f8-c5.]
;B[b1-d3]
C[E' un boccone avvelenato: se a3:d3 segue f8:c5.]
;C[]
W[a5-d5]
;C[]
B[f1-c4]
;W[a3:d3]
C[Secondo me e' un errore perche' sblocca f8  
senza una contropartita.]
;C[]
B[f8:c5]
;C[]
W[h5-e5]
;C[]
B[d8-c7]
;C[]
W[f4:c4]
;B[g1-g3]
C[Impedisce h2:d6.]
;W[f7-f6]
C[Minaccia a2:e6.]
;B[c1-b2]
C[Contrattacca minacciando il pezzo in e5.]
;W[a2:e6]
;C[]
B[b2:e5]
;C[]
W[h3-f5]
;B[c7:c4]
C[Il Nero cerca di isolare a6.]
;C[]
W[h4-f4]
;C[]
B[e1-e4]
;W[e6-g4]
C[Al Nero mancano solo due mosse per concludere: 
g6-g4+ e d1-f3#. Il Bianco deve fare qualcosa
subito per bloccarlo]
;B[c5-d4]
C[Necessaria per bloccare d3. Se ora il Bianco 
gioca d3-f3 minacciando a6:c4, cade d5.]
;C[]
W[d3-f3]
;B[c4-c3]
C[Non c'e' fretta di giocare d1:d5, e' assai
meglio evitare la pericolosa a6:c4 e lasciare
a6 sempre piu' isolato.]
;W[h2-h3]
C[Unisce h2 al gruppo e para c3:f3.]
;B[g3-h4]
C[Minaccia h4:f6 con vittoria alla successiva.]
;W[f6:h4]
C[E' l'unica mossa possibile e inoltre e' una
bella minaccia perche' ora al Bianco mancano 
solo due mosse per vincere a6:d6++ seguito da 
d5-e6# o h3-e6#.]
;B[d1:d5]
C[Minaccia c3-f6#.]
;C[]
W[f3-f6]
;C[]
B[g6-f7]
;C[White     Resigns
Tripla minaccia imparabile: f7-e7# e5-e7# e4-e6#.
]
)
