Test Position, white to play and draw

[acase]

Why not complicate it some more by adding Queens into the mix and giving the white rook a possible checking move at the e3 square to confuse the engines even more?

Try this out:
[fen]r5b1/7P/p7/2B4p/rp1R4/k3N1P1/pq2Q3/3K4 w - - 0 1[/fen]

Obviously 1.QxQ+ is the first move, also note that 1.Rd3+ allows black to block it and deliver a cross check to white with the Bishop on g8 by playing 1...Bb3+

Oops I meant to say give the white rook a checking square on d3 and not on e3.

[peter]

Why not complicate it some more by adding Queens into the mix and giving the white rook a possible checking move at the e3 square to confuse the engines even more?

Try this out:
[fen]r5b1/7P/p7/2B4p/rp1R4/k3N1P1/pq2Q3/3K4 w - - 0 1[/fen]

Obviously 1.QxQ+ is the first move, also note that 1.Rd3+ allows black to block it and deliver a cross check to white with the Bishop on g8 by playing 1...Bb3+

Still no problem for Crystallite:

r5b1/7P/p7/2B4p/rp1R4/k3N1P1/pq2Q3/3K4 w - - 0 1

Analysis by Crystallite 1.1a-bmi2:

1.Sc2+ Dxc2+ 2.Dxc2 a1D+ 3.Kd2 Lb3 4.Td3 Da2 5.Dxa2+ Kxa2 6.Td6 Th8 7.Th6 Lc2 8.Lxb4 Kb3 9.Lc5 Txh7 10.Tb6+ Kc4 11.Ld6 Lb3 12.Ke3 Td7 13.Ke4 a5 14.Kf5 Ta1 15.Kg5 Td8 16.Kh6 Te8 17.Kg6 Tf1 18.Tc6+ Kd5 19.Tc5+ Kxd6 20.Txa5 Tee1 21.Kxh5 Te3
Schwarz steht klar auf Gewinn: -+ (-8.73 --) Tiefe: 24/45 00:00:11 446MN
...
1.Dxb2+
Schwarz steht besser: -/+ (-1.21 ++) Tiefe: 32/95 00:01:34 4171MN
1.Dxb2+ Kxb2 2.Td2+ Kb1 3.Tb2+ Kxb2 4.h8D+ Kb1 5.Da1+ Kxa1 6.Kc1 b3 7.Sc2+ bxc2 8.Le7 Td4 9.Lf6 Tad8 10.Lg7 Lb3 11.Lf6
Die Stellung ist ausgeglichen: = (0.00) Tiefe: 32/95 00:01:35 4211MN
...
1.Dxb2+ Kxb2 2.Td2+ Kb1 3.Tb2+ Kxb2 4.h8D+ Kb1 5.Da1+ Kxa1 6.Kc1 b3 7.Sc2+ bxc2 8.Le7 Td4 9.Lf6 Tad8 10.Lg7 Lb3 11.Le5 T8d6 12.Lg7
Die Stellung ist ausgeglichen: = (0.00) Tiefe: 38/27 00:02:11 5748MN

30 threads of 16x3.5GHz CPU, 32G hash, Syzygy Probe Limit=0
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