I wonder if 1.g4 the only losing move for white

[Uri Blass]

unlike being sure that chess is a draw I am not sure if 1.f3 is a draw or a loss for white.

Is there a strong evidence that 1.f3 is a draw?

[Jouni]

Chessdb main line = DRAW confirmed:

1. f3
e5
2. Nc3
Nc6
3. e3
d5
4. Bb5
d4
5. exd4
exd4
6. Qe2+
Be7
7. Ne4
f5
8. Ng3
Qd6
9. b3
Bd7
10. Bxc6
Qxc6
11. Qc4
Qxc4
12. bxc4
Ba4
13. N1e2
O-O-O
14. Nxf5
Bf6
15. d3
Bxc2
16. Nf4
Rf8
17. Bb2
Be5
18. Ne3
Bxf4
19. Nxc2
c5
20. O-O
Nf6

[Uri Blass]

stockfish's main line after a long search after 1.f3
I guess it is a draw but I am not sure about it.


FEN: rnbqkbnr/pppppppp/8/8/8/5P2/PPPPP1PP/RNBQKBNR b KQkq - 0 1

Stockfish_23112018_x64_avx2:
NNUE evaluation using nn-0000000000a0.nnue

67/91 10:40:42 98,664,443k 2,567k +0.63 e7-e5 Nb1-c3 Nb8-c6 e2-e4 Bf8-c5 Bf1-c4 d7-d6 d2-d3 a7-a5 a2-a3 h7-h6 Bc1-d2 Qd8-h4+ g2-g3 Qh4-d8 Nc3-d5 Ng8-f6 Bd2-e3 Nc6-d4 Be3-f2 c7-c6 Nd5xf6+ Qd8xf6 c2-c3 Nd4-e6 d3-d4 e5xd4 Bc4xe6 f7xe6 c3xd4 Bc5-a7 f3-f4 O-O Qd1-d2 Qf6-g6 Qd2-e2 Ba7-b6 Ng1-f3 Bb6-c7 Nf3-h4 Qg6-f7 O-O b7-b6 Qe2-g4 c6-c5 d4xc5 b6xc5 e4-e5 Ra8-b8 e5xd6 Bc7xd6 Ra1-d1 Rf8-d8 Nh4-g6 Bc8-b7 Rf1-e1 Bb7-d5 Rd1-d2 Kg8-h7 Ng6-h4 Bd6-e7 f4-f5 e6xf5 Qg4xf5+ Qf7xf5 Nh4xf5 Bd5-f3 Rd2xd8 Be7xd8 Re1-e8 Bf3-c6 Re8-e6
68/85+ 10:51:09 100,079,313k 2,562k +0.68 e7-e5

[Graham Banks]

unlike being sure that chess is a draw I am not sure if 1.f3 is a draw or a loss for white.

Is there a strong evidence that 1.f3 is a draw?

It is playable, unlike the Grob.

[Uri Blass]

This is the line after more than 100G nodes and I stop the analysis.

FEN: rnbqkbnr/pppppppp/8/8/8/5P2/PPPPP1PP/RNBQKBNR b KQkq - 0 1

Stockfish_23112018_x64_avx2:
NNUE evaluation using nn-0000000000a0.nnue

68/85 11:48:53 108,117,356k 2,542k +0.68 e7-e5 Nb1-c3 Nb8-c6 e2-e4 Bf8-c5 Bf1-c4 a7-a5 d2-d3 d7-d6 a2-a3 h7-h6 Bc1-d2 Bc8-d7 Qd1-c1 Nc6-d4 Nc3-e2 Qd8-h4+ g2-g3 Nd4xe2 Ke1xe2 Qh4-d8 Bd2-e3 b7-b5 Bc4-a2 Bc5xe3 Qc1xe3 c7-c5 Ke2-f2 Ra8-c8 Ng1-e2 Ng8-e7 Ne2-c3 O-O Nc3-d5 Bd7-c6 Nd5xe7+ Qd8xe7 h2-h4 a5-a4 g3-g4 Kg8-h7 Ra1-g1 Rc8-b8 Qe3-d2 b5-b4 Ba2-c4 Rf8-d8 Rg1-e1 Bc6-d7 Re1-e2 Rb8-b6 Kf2-g3 Bd7-e6 Rh1-a1 Rd8-a8 Re2-f2 b4xa3 b2xa3 Ra8-b8 Bc4xe6 Qe7xe6 f3-f4 d6-d5 e4xd5 Qe6xd5 Qd2-e3 e5xf4+ Qe3xf4