4
1r6/5pk1/2q1p1pp/3p4/r2P4/2P4P/PPQ2PP1/R3R1K1 w - - 0 1

White to move.

White is 2 passed pawns up, but black is very active. I'm sure objectively white is winning, but how? Black will attack and force me to move my a or b pawn, but the moment I move one pawn, black will sink a rook next to it (a3 or b3) and paralyse my pieces.

  • I'm hesitant to call this objectively winning for white. As you stated, black has much activity for the material deficit and I'd expect white to be forced to give a pawn back at some point to get some good play going.With that being said, white has good winning chances due to the extra material and Stockfish gives the position a +1.4 score at depth 26. But that is not a guarantee of an objective win, and if there is one it's certainly going to be tricky to achieve against an optimal defense. – Scounged Dec 13 '18 at 23:18
  • White is certainly winning here with correct play, and it should be easy to convert. It's not just the fact that he's up 2 clean pawns but blacks king is exposed while white's isn't. – Matthew Liu Dec 14 '18 at 16:48
4
1r6/5pk1/2q1p1pp/3p4/r2P4/2P4P/PPQ2PP1/R3R1K1 w - - 0 1

1. b3 Ra7 2. a4 Rab7 3. Reb1 Rc7 4. b4 Qxc3
5. Qxc3 Rxc3 6. b5 Rcc8 7. b6 Rb7 8. a5 Ra8
9. a6 Rbb8 10. b7 Ra7 11. Rb6 Kf6 12. Rab1 Ke7
13. Rc6 Kd7 14. Rbb6 Rxa6 15. Rxa6 Rxb7 16. Rcb6 Rc7
17. Ra8 Ke7 18. Rab8 Kf6 19. R6b7 Rxb7 20. Rxb7

You should forward you pawns first since ab has open lines - do not allow block them ab together is unstoppable. If pawns are blocked try mate black king. Pawn should forward fast to allow support them if not you loose chance.

Some very unpolished example.

1r6/5pk1/2q1p1pp/3p4/r2P4/2P4P/PPQ2PP1/R3R1K1 w - - 0 1

1. b3 Ra3 2. c4 Rba8 3. c5 Rb8 4. Rec1 Qb7
5. c6 Qc7 6. Qc5 Ra5 7. Qc3 Ra3 8. Qg3 Qb6
9. Qe5+ Kh7 10. c7 Rc8 11. Rc5 Ra5 12. Rxa5 Qxa5
13. Rc1 Qxa2 14. Qf6 Qxb3 15. Qxf7+ Kh8 16. Qf6+ Kh7
17. Qe7+ Kh8 18. Qd8+ Rxd8 19. cxd8=Q+ Kg7 20. Rc7#

If rooks want to block you have to sacrifice pawns and queen to promote one pawn. Do not forget your king safety. This variation forcing and promoting pawns.

I you not gain space on queen side black can kill you pawns because better mobility so you must keep edge and not fall from it.

  • 2
    In both cases you start with b3, but I think this is a weak move. At least because in the next move black rook may safely attack pawn at d4. – Victor Dec 14 '18 at 5:11
  • @Victor I don't think b3 is a bad move neccessarily. It is a very concrete try to make progress, and white will most likely need to give up some material at some point to get anything anyway. But I think that black was way too cooperative in the lines given in this answer. – Scounged Dec 14 '18 at 7:41
  • @Scounged The problem is that Chameleon's strategy is based only on the fact that the black rook will move only vertically, while in fact he loses the pawn, and his plan will no longer work. However, I agree with you that this is not critical, and even without that pawn white remain still well protected. – Victor Dec 14 '18 at 8:15
  • @Victor There are a loft of variation depending on defense strategy but I think all lead to lost game - each white lost pawn is equal to exchange at least. It will be very hard to lost two pawns without compensation. Black king defense formation is not good so it is some advantage. I just show some simple and effective variations. Promotion speed is killing in such position - black has very big problem with accurate defense. – Chameleon Dec 14 '18 at 15:36
  • @Chameleon How many hours have you spent analyzing this position? I'm writing this because I have a feeling this position is a lot more complicated than you seem to think. For once, you state that white has a 2 pawn advantage. While technically true, it's difficult for white to keep both extra pawns and at the same time make any progress; for instance, in your line above where black lets white push a passer to c5 for no reason, black could instead just trade it off leaving white with several weak pawns in need of protection. – Scounged Dec 14 '18 at 18:34

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