I suppose: 1. Rc8 Bxd6 (Rf8? Rxc6 is worse) 2. Rxc8+ Kg7 (or perhaps Rf8 Rxf8 Kxf8) 3. Bxd6 And white has won two bishops for the rook, is up with bishop. If still rooks on the board, f-pawn is protected, c6 pawn hangs, otherwise lonly bishop should control c-pawns, white majority on kingside wins.
Here, I haven’t really done a complete analysis, but the simple rook liquidation line should be sufficient to win for white:
6. Rc7 Rc7 (or lose another pawn) 7. Bc7 c3 (what else?) 8. Ke4 c2 (nothing holds, IMO) 9. Bb2 Ke4 (no hope in Kd3) 10.Bc1 and this is clearly won for white as white will either liquidate the king side down to a single pawn supported by the bishop and return with his king to pick up c2, or, if the black king tries to support the advance of the c-pawn, white will simply create passed pawns on the king side and sacrifice his bishop for black’s c-pawn when the time comes.
At move 1, black does no better with moving the king off the 8th rank to avoid the capture with check:
1. Ra8 Bxd6 is pretty obvious, but what is whites best move next? a) 2. Rxc8+ Rf8 3. Rxf8 Kxf8 4. Bxd6 b) 2. Bxd6 with Rxc8 next.
I think the difference is that b) keeps rooks on the table, and whites advantage of beeing a bishop up is quite obvious. a) gives a rookless endgame, and lonly bishop has a harder job winning.
1.Ra8 looks good. If 1…Bxd6, then 2.Bxd6; if 1…Rf8, then
2.Rxc6; and if 1…Kg7, then 2.Rxc8. Phil
I suppose:
1. Rc8 Bxd6 (Rf8? Rxc6 is worse)
2. Rxc8+ Kg7 (or perhaps Rf8 Rxf8 Kxf8)
3. Bxd6
And white has won two bishops for the rook, is up with bishop.
If still rooks on the board, f-pawn is protected, c6 pawn hangs, otherwise lonly bishop should control c-pawns, white majority on kingside wins.
Ra8. Bxd6, RxC8+ two bishops for a rook or 1… Rf8, and 2. Rxc6 wining.
i think, 1. Ra8+, Rf8, 2. Rxc6, or 1. … Bxd6, 2. Rxc8+ is a good idea. greets, jan
The best move is 1. Ra8 Bxd6folowed by:
2. Bxd6 Rd7
3. Rxc8+ Kf7
4. Rxc6
I would play Ra8.
and if Rf8 then Rxc6 winning the bishop.
1. Ra8 should win
1… Bxd6
2. Rxc8+ King moves
3. Bxd6 winning
1… Rf8
2. Rf6! Rxf6
3. Rxc8+ K moves
4. Rxc7
And, white should win with an extra piece for a pawn
Ra8
Ra8 to pin the white-squared bishop is pretty obvious:
1. Ra8
And there are no good replies for black here due to the additional threat of Rc6. The two best replies are
1. …..Bd6 (the move Navarra played)
2. Bd6
Here, Rc8 fails: (2.Rc8?? Rf8 3.Rc6 Bc5 4.Rc5 Rf4 leaves black up a pawn). Continuing:
2. …..Rd7 (anything better?)
3. Rc8 Kf7 (only counterplay)
4. Rc6 Ke6
5. Be5 Kd5
Here, I haven’t really done a complete analysis, but the simple rook liquidation line should be sufficient to win for white:
6. Rc7 Rc7 (or lose another pawn)
7. Bc7 c3 (what else?)
8. Ke4 c2 (nothing holds, IMO)
9. Bb2 Ke4 (no hope in Kd3)
10.Bc1 and this is clearly won for white as white will either liquidate the king side down to a single pawn supported by the bishop and return with his king to pick up c2, or, if the black king tries to support the advance of the c-pawn, white will simply create passed pawns on the king side and sacrifice his bishop for black’s c-pawn when the time comes.
At move 1, black does no better with moving the king off the 8th rank to avoid the capture with check:
1. …..Kg7
2. Rc8 Bd6
3. Bd6 Kf6
4. Be5 Ke6
5. Rc6 Kd5
6. Rc7
And we will transpose into the exact same endgame seen previously.
White takes care of the pawn situation first:
1 fxg6! hxg6
Or 1… Bxd6, 2 gxf7+ Kxf7, 3 Bxd6 leaves White a Rook up.
2 Ra8!
Stronger than Rxg6+.
2 … Bxd6
If 2 … Rf1, 3 Rg6+ Kf7, 4 Bxf8 leaves Black down at least a Rook after 4 … Kxg6, 5 Rxc8.
Or 2 …. Kg7, 3 Rxc8 Bxd6, 4 Bxd6, leaving White a piece up, with Black’s Rook in a worse position than in the main line.
3 Bxd6
The point of the combination. Black can’t defend the Bishop because White’s Bishop controls both squares.
3 … Rb7
Black tries to activate the Rook.
4 Rxc8+ Kf7
5 Rc6 Rb1+
6 Kf2 Rc8
Black tries to defend the pawn. 6 … Ke6, 7 Bf8+ Kf5, 8 Rxc4 wins easily.
7 Bf4 Rc2+
8 Kf3 Rc3+
9 Ke2 Rc2+
10 Bd2 Kg7
Nothing else is any better. Black is going to lose the pawn.
11 Kd1 Ra2
12 Rxc4
White wins this ending without any problem.
For Tom: fxg6 is not a valid move!
1. Ra8 directly…
1.Ra8!! Bxd6 (1…Rf8 2.Rxc6 +-) 2.Bxd6! and there is no way to defend the bishop !
1. Ra8 Bxd6
is pretty obvious, but what is whites best move next?
a)
2. Rxc8+ Rf8
3. Rxf8 Kxf8
4. Bxd6
b)
2. Bxd6 with Rxc8 next.
I think the difference is that b) keeps rooks on the table, and whites advantage of beeing a bishop up is quite obvious.
a) gives a rookless endgame, and lonly bishop has a harder job winning.