1. The Ghost Bishop
    Joined
    11 Oct '11
    Moves
    877
    13 Dec '11 08:281 edit
    W#2


    Q
  2. Standard memberSwissGambit
    Caninus Interruptus
    2014.05.01
    Joined
    11 Apr '07
    Moves
    92274
    13 Dec '11 08:412 edits
    Originally posted by PhySiQ
    W#2
    [fen]3brrb1/2N4B/8/2p4Q/2p2k2/5P2/4P1KR/2N2RB1 w - - 0 1[/fen]

    Q
    Reveal Hidden Content
    1.Rh1!! zugzwang

    Reveal Hidden Content
    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. Joined
    12 Mar '03
    Moves
    44411
    13 Dec '11 08:451 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.

    Reveal Hidden Content
    Rh1


    edit. Oops got beaten by The Master, lol.
  4. Standard memberSwissGambit
    Caninus Interruptus
    2014.05.01
    Joined
    11 Apr '07
    Moves
    92274
    13 Dec '11 08:571 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.
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