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G. P. Jelliss
Schiffs with Everything 1983
Nightriders. Mate in 2.

The Nightrider, first used by T. R. Dawson in chess compositions in 1925, and shown as an upside-down knight, is the second most popular of the unorthodox pieces, after the Grasshopper. It is like a Bishop or Rook but moving along a series of knight moves in a straight line.

In the solutions S = Knight, N = Nightrider.

Solution (A): 1.Sxe5 threat/Kd6/Ke6 2.Nf5 mate.
1...SxS 2.Nh6. 1...NxS 2.Qd7. 1...Sd4 2.Nf1++. 1...Sa5/b4 2.SxN. 1...Ne8 2.SxS.
Set: 1...Ke6 2.Rxe5 double pin mate. Tries: 1.Nf5? PxB! 1.Se3+? Kd6!

G. P. Jelliss
Schiffs with Everything 1983
Nightriders. Mate in 2.

The three problems shown here were composed under the inspiration of Bob McWilliam at the time that I published his booklet Schiffs with Everything in the "Chessays" series. As noted in the booklet there are five further Nightrider cases of the Schiffmann theme, the pin and battery lines being RN, NR, BN, NB, NN, with various angles possible between them, plus BN and NB cases using nightrider as a battery piece. (A) and (B) appeared in the booklet.

Solution (B): 1.Ng6 (threat 2.Kd6 mate).
1...Bxe4 2.Ke8. 1...Qxe4+ 2.Kf7. Byplay: 1...Qd5 2.exQd5. 1...Bb7 2.Qd8.
Try: 1.Nd5? (threat 2.Qc7 mate) 1...BxNd5.

G. P. Jelliss
unpublished 19 October 1983
Nightriders. Mate in 2.

(C) is a setting in my files, another version of the matrix in (B), but I'm not sure if it is sound.

Solution (C): 1.Qxc3 (threat 2.Kb5 mate).
1...Bxc3 2.Kc5. 1...Rxc3+ 2.Kd5.
1...Rxd6+/Bxd6 2.Bxd6. 1...Rd4 2.QxB. 1...Rd5 2.KxR.
1...Kxa6 2.Qa3 (double pin).