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  1. 13 Dec '11 08:28 / 1 edit
    W#2


    Q
  2. Standard member SwissGambit
    Caninus Interruptus
    13 Dec '11 08:41 / 2 edits
    Originally posted by PhySiQ
    W#2
    [fen]3brrb1/2N4B/8/2p4Q/2p2k2/5P2/4P1KR/2N2RB1 w - - 0 1[/fen]

    Q
    1.Rh1!! zugzwang

    1...Be7, Be6 2.e3<br>1...Bf6, Bf7 2.Qf5<br>1...Re7, Rf6 2.Rh4<br>1...Re6, Rf7 2.Nd5<br>1...Re5 2.Qg4<br>1...Re4 2.fxe4<br>1...Re3 2.Bh2<br>1...Bd8~ 2.Rh4<br>1...Bg8~ 2.Nd5<br>1...Bg5 2.Qh2 (the justification for the key)<br>1...Rxe2+ 2.Nxe2<br>1...c3 2.Nd3
  3. 13 Dec '11 08:45 / 1 edit
    Originally posted by PhySiQ
    W#2
    [fen]3brrb1/2N4B/8/2p4Q/2p2k2/5P2/4P1KR/2N2RB1 w - - 0 1[/fen]

    Q
    It would be more difficult if the position had pieces that are not involved in the action. It is just a matter of trying every move, and it always is about zugzwang, one way or another.

    Rh1


    edit. Oops got beaten by The Master, lol.
  4. Standard member SwissGambit
    Caninus Interruptus
    13 Dec '11 08:57 / 1 edit
    Originally posted by Mephisto2
    It would be more difficult if the position had pieces that are not involved in the action. It is just a matter of trying every move, and it always is about zugzwang, one way or another.

    [hidden]*[/hidden]

    edit. Oops got beaten by The Master, lol.
    1...Bg5 and 1...Re3 both need an answer. Providing for both focuses the solver in on the right move without the need to try every move at white's disposal.