1.Re5 Black B can not take it. 1…. Rxe5 2.fxe5 and B can not again take e5. the most important thing is white R can have access upto d8.but after 2… Bf8 3.Rd8 does not achieve much because black can play 3… Rb5 stopping 4.Bc5. Instead 3.Rd7 is called for.
Like a couple of the commenters, my first thought was Rxd6, but that is inferior to the idea of Re5 I now believe:
1. Rd6? cd6 (now or later)
2. c7
I don’t think there is better here than the push- 2.Ra6 would seem to eventually transpose anyway to my eye. Continuing:
2. …………Re8! (obviously, Rc4 is going lose to the imposition of a white piece at c5)
3. Ra6
My initial thought here when I looked at the problem is 3.Ba7 with the plan of 4.Bb8, but black eventually can put a rook on b6 protecting a6 and d6, and put the rook on c6 when needed. In that line, white might have enough to draw, but would have to fight for it. Continuing:
3. ………….Rb7 (forces the issue)
4. Rc6
I can’t imagine white has better move here. Continuing:
4. ………….Rc8 (again, forces the issue)
5. Bb6
What else? Otherwise, white is going to lose the compensation he gained with the exchange sacrifice on move 1. Continuing:
5. …………Kf8 (or make a hole by f6/g6/h6- threatens Rxb)
6. Rd6
Nothing better now- white can’t prevent black from sacrificing a rook for the bishop and the pawn- at least Rxd6 gets a pawn in return. Continuing:
6. ………….Rbc7
7. Bc7 Rc7
8. Rd3 Rc4
9. Rf3
And white is up a passed pawn, but this would be a challenging endgame to bring to a win since the rest of white’s pawns are incredibly weak.
Rxd6
1.Re5 Black B can not take it. 1…. Rxe5 2.fxe5 and B can not again take e5. the most important thing is white R can have access upto d8.but after 2… Bf8 3.Rd8 does not achieve much because black can play 3… Rb5 stopping 4.Bc5. Instead 3.Rd7 is called for.
It is R:B then he will get a new queen.
Re5 Rxe5 (… Bxe5, Rd8#)
fxe5 followed by Rd7 +-
Re5
Like a couple of the commenters, my first thought was Rxd6, but that is inferior to the idea of Re5 I now believe:
1. Rd6? cd6 (now or later)
2. c7
I don’t think there is better here than the push- 2.Ra6 would seem to eventually transpose anyway to my eye. Continuing:
2. …………Re8! (obviously, Rc4 is going lose to the imposition of a white piece at c5)
3. Ra6
My initial thought here when I looked at the problem is 3.Ba7 with the plan of 4.Bb8, but black eventually can put a rook on b6 protecting a6 and d6, and put the rook on c6 when needed. In that line, white might have enough to draw, but would have to fight for it. Continuing:
3. ………….Rb7 (forces the issue)
4. Rc6
I can’t imagine white has better move here. Continuing:
4. ………….Rc8 (again, forces the issue)
5. Bb6
What else? Otherwise, white is going to lose the compensation he gained with the exchange sacrifice on move 1. Continuing:
5. …………Kf8 (or make a hole by f6/g6/h6- threatens Rxb)
6. Rd6
Nothing better now- white can’t prevent black from sacrificing a rook for the bishop and the pawn- at least Rxd6 gets a pawn in return. Continuing:
6. ………….Rbc7
7. Bc7 Rc7
8. Rd3 Rc4
9. Rf3
And white is up a passed pawn, but this would be a challenging endgame to bring to a win since the rest of white’s pawns are incredibly weak.