
My first composed helpmate in orthodox chess received a 'Commendation' in the Tourney for Helpmates in 2 (duplex) (The Problemist AprilJune 1976, pp.378) for which it was composed. "Duplex" means that there is one solution with Black moving first and White giving mate, as is usual in helpmates, and another solution with White moving first leading to a mate by Black. Solution:Black 1.B×g3 R×g7 2.Bh2 Bd4‡
Comments: 4th Commend. "Ultimately the masked halfpin is being exploited. Who will show a complete halfpin in a duplex on both sides?" Shlomo Seider. 
(solution Apr 1977 p.191)

Solution:1.Re6 N3d4 2.f4 Nd6 3.Re5‡
Comments: "Marvellous find; variation of selfblocks is neat, but what really makes the problem is the differentiation of WP moves" D. A. Smedley. Modal change (i.e. interchange of orthogonal and diagonal aspects) is one of my favourite themes. 
(solution MayJun 1978 p.2289)

Solution:1.b4 Ra3 2.Kc1 Ra5 3.Kd2 Re5 4.c3‡ Comments: Unfortunately this problem was completely anticipated by Eugene Albert, Schach 1966.
This anticipation, and the one in the next composition, discouraged me from composing further orthodox helpmates, because of the difficulty of knowing what has been done. 
(solution MayJun 1978 p.229)

Solution:1.Bf1 Ra8 2.Bb5 Rxh8 3.Ka4 Rh1 4.Rb4 Ra1‡ Comments: "Rundlauf of considerable elegance" B. P. Barnes. "Flying fortress" R. Brain. Also quoted in lecture by C. G. Rains, Sep 1979 p.359. Unfortunately anticipated by A. Havasi, Fairy Chess Review 1944 (BKd6, Rh3, Bh8, WKc2 Qe1, Ra1) showing the task with only 6 pieces but using BQ. Also anticipated by an earlier example by T. R. Dawson Bolton Football Field 15 Jun 1912, version (BKf5, Rf1, Rg4, Ba8, Pg3, WKb3, Rh1). 

Solution:(a) 1.Nb5 Ba7 2.Qb6 Re6+ 3.Kc5 Bxb6‡
Quoted in The Problemist May 1986, #20 p.175 "Recently honoured work by British composers". Comments: Line clearance ... very elegant and wellmatched" P. S.Valois. 
(solution Jan 1990 p.174)

Solution:1.Kc5 Ke5 2.Rb4 Sd4 3.Rcc4 Sd7‡
Comments: Exact echo, showing a "transflection" (translation combined with reflection).
