(The correction of the study by <b>Jan Rusinek </b>)<div><i>  (from Roycroft Jubilee Tourney, EG 1978) </i></div><div><br /></div><div><b>1. Rc1+  </b></div><div><b>If 1. ...         g1=Q, then</b></div><div><b>2. fxg=Q       Qxc1</b></div><div><b>3. Qa8+! </b>, of course, not 3.Bxc1 for the very simple reason, but the refusal of capturing the queen here<b> </b>is I think nice and elegant. And now study gets the introduction as the play does not begin directly with the thematic promotion to the various pieces.<b>   </b></div><div><b>4.  ...            Kg1</b></div><div><b>5. Bd4+       Kf1</b></div><div><b>6. Qh1# </b> - mate from the corner!</div><div><br /></div><div><b>After 1. ...     e1=Q</b></div><div><b>2. Rxe1+ </b>   the thematic play arises:</div><div><b>2.  ...             g1=Q   </b>leads to  <b> </b></div><div><b>3. fxg8=Q         Qxe1</b></div><div><b>4. Qa8+!       Kg1</b></div><div><b>5. Bd4+         Kf1</b></div><div><b>6. Qf3+ with win.</b></div><div><b><br /></b></div><div><b>Or, </b><b>2.  ...       g1=B</b></div><div><b>3. fxg8=B!  </b> (3.fxg8=Q? stalemate)</div><div>3.fxg8=N? would be not good either: after 3. ... Kg2 4.Nxe7  h1=Q 5.Nf5 ( 5.Nd5 Kf2 6.e7 Kxe1 7.e8=Q+ Kd2 is also drawn) 5. ... Kf2 6.Re2+ Kxe2 7.Ng3+ Kf3 8.Nxh1 Bc5  it is a draw.</div><div><b>3.  ...             Kg2</b></div><div><b>4. Bh7!         Kf2</b></div><div><b>5. Be4           Kxe1</b></div><div><b>6. Kxb3         Bc5</b></div><div><b>7. Be5, winning</b></div><div><b><br /></b></div><div><b>Or,  2.  ...       g1=N</b></div><div><b>3. fxg8=N!     </b></div><div>Again White chooses the same piece for promotion  as Black! </div><div>Here 3.fxg8=B? is bad: <i>3. ... Kg2 4. Bh7 Kf2 5.Be4</i> ( 5.Rxg1 hxg1=Q 6.Bd4+ Kg2 7. Be4+ Kf1 8.Bxg1 Kxg1 9.Kxb3 Kf2 10.Kxb4 Ke3 11.Bh1 Kd4 and 12. ...Ke5 is also draw)<i> 5. ... Kxe1 6.Kxb3 Ne2 7.Be5 Kf2 8.Bxh2</i> ( 8.Kxb4 Ng3 9.Bc6 h1=Q 10.Bxg3+ Kxg3 11.Bxh1 Kf4 12. Kc5 Ke5 ) <i>Nd4+ 9.Kxb4 Nxe6 10.Kc4 Ng5 11.Bh1 Nf3 12.Bb8 e5 - and White is unable to win - 13.Ba7+ Nd4 14.Kd5 Kg1 15.Be4 h2 and 16. ...h1=Q<b>   </b></i></div><div><b>3.    ...            Kg2</b></div><div><b>4. Nxe7          h1=Q</b></div><div><i>If  4. ... Kf2 5.Nf5 </i><i>Kxe1, then 6.Ng3 Ne2 7.Nh1 Nc3+ 8.Bxc3! bxc3 9. e7 b2 10.e8=Q+  Kd2</i> (10. ...Kf1 Qe3) <i>11.Qe4 Kc1</i> (11. ...c2 12.Qb4+ Kd1 13.Qxb2 c1=Q 14.Nf2+ ) <i>     12. Qf4+ Kc2 </i>(12. ...Kd1 13.Qb4)<i> 13.Qxh2+ Kb1 14.Ka3 c2 15.Qe2 c1=Q 16.Kb3 or 15. ...h2 16.Qe4</i></div><div><b>5. Nf5!            Kf2</b></div><div><b>6. Rf1+!</b> (very nice!) <b>Kxf1</b></div><div><b>7. Ng3+          Kg2</b></div><div><b>8. Nxh1          Kxh1</b></div><div><b>9. e7, and wins.</b></div><div><b><br /></b></div><div><b>Or, if 5. ...       h2</b> ( instead of 5. ...Kf2)<b>, then</b></div><div><b>6. e7              Kh3</b></div><div><b>7. e8=Q!   </b>The newly-born queen has just in time taken under control squares a8 and c6 from the checks of Black queen, and White wins.</div><div><b><br /></b></div><div><i><br /></i></div><div><br /></div><br />