28. Ra1 I saw the logical line 28. Nd4 Rb8 29. Ra1 Nc6 30. Ra6 Nxd4 31. cxd4 Rxc2+ 32. Kxc2 b4! after which Black closes the queenside and White can't make progress. "Never", I thought, and decided to keep as many pieces on the board as possible... 28... Nc6 29. Ra6?? No pieces are being exchanged indeed, but I'm facing some other problem now: 29... Nb4 30. Ra5 Nxc2 31. Kxc2 Rxc3+ 32. Kb2 b4 0-1