[Retros] phénix 98 solutions

[Thierry LE GLEUHER]

Dear retro friends
There are the Phénix 98 solutions (found in Phénix 109, 07-08/2002)
Best regards
Thierry

 
PHENIX 98 SOLUTIONS
 
3752. P EINAT, G COSTEFF & O COMAY
1.f4 c5 2.f5 c4 3.f6 c3 4.fxe7 cxb2 5.exf8=N bxc1=N 6.Nxh7 Nxe2 7.Ng5 Rh3 8.N5xh3 Nxg1 9.Nxg1 (C+)
 
* 3753. P EINAT, G COSTEFF & O COMAY
Author's solutions
1.f4 b5 2.f5 b4 3.f6 b3 4.fxe7 bxa2 5.exf8=N axb1=R 6.Rxa7 Rxc1 7.Rxc7 Qxc7 8.Nxd7 Qb6 9.Nxb6 Rca1 10.Nxa8 Rxa8
1.f4 b5 2.f5 b4 3.f6 b3 4.fxe7 bxa2 5.exf8=R+ Ke7 6.Rxd8 axb1=R 7.Rxd7+ Ke8 8.Rxc7 Rxc1 9.Rcxa7 Rxa1 10.Rxa8 Rxa8
but cooked by N. PRIPOAE
1.f4 é5 2.a3 Fxa3 3.Txa3 Dé7 4.fxé5 Dxé5 5.Txa7 Da5 6.Txb7 Da1 7.Txç7 Dxb1 8.Txd7 Dxç1 9.Dxç1 C(F,R)xd7 10.Dd1 Cb8(Fç8,Ré8)
 
3754. G DENKOVSKI
1.c4 Na6 2.Qc2 Nc5 3.Qg6 Na4 4.c5 hxg6 5.c6 Rh3 6.cxb7 Ra3 7.b8=Q Ba6 8.Qb3 Qb8 9.Qd1 Qb3 10.h4 Qh3 11.g4 Rg3 12.e3 Bxf1 13.Qe2 OOO 14.Kd1 Kb7 15.Qe1 Ka6 (C+)
(Pronkin)
 
3755. Michel CAILLAUD
1.b4 g5 2.b5 g4 3.b6 g3 4.bxc7 b5 5.c4 Bb7 6.Nc3 Bf3 7.gxf3 b4 8.Bh3 b3 9.Bf5 b2 10.Bc2 b1=N 11.d3 Nd2 12.Nh3 Nf1 13.Qd2 g2 14.Qh6 g1=Q 15.Bd2 Qg5 16.Rc1 Ne3 17.Bb1 Ng4 18.OO Qf4 19.Rfd1 Ne3 20.Be1 Nf1 21.Kxf1 Qd2 22.Rxd2
(Ceriani-Frolkin)
 
3756. F PERRUCHAUD
The stipulation permit to capture e.p. if the white castle is played during the solution.
Solution : 1.a4xb3 e.p. + c3 2.Na4 0-0-0# (Rd1?? illegal).
 
3757. F PERRUCHAUD
a)      1.c5xb6 e.p. + c6 2.Bxc6#
b)      1.0-0-0 (excluding Rh1+) Black play and 2.Qd8#
 
3758. Kevin BEGLEY
It's possible in Circe parrain to capture 2 pieces during a same move when an e.p. capture occur!
Solution: add 1 wBg3 and 1 bBg1.

>From the intermediate position:

8/8/5Pk1/8/5K1p/7P/5BPp/6N1 (6+3)
0... h2xNg1B 1.g2-g4[Ng3] h4x(Ng3 and g4 e.p.)!!! 2.Bf2xg3[Ph5,Nh4]+
 
3759. Thierry LE GLEUHER
The last move is 0-0 and White make 0-0 too. wPe5 comes from h2 capturing the bQ, bB and bPe. Indeed the bPa can't promote because of the number of bP's captures (4 more). There would be (with the bN) 8 captures for 7 white free pieces. The wK can pass only when the wPh2 is on e5 ! The promoted bN impose 4 captures on white squares among: bQ, bB, bN, bPc and bPe knowing that the bP on g6 can come from g2 with g2-g4xPh5xRg6. The Ng1 has been captured (at home) by the bQ (the bB can't pass). The bPc, who can't make 2 captures (only the wB is free on black squares), played c7-c5, but after the wK move through a5! We can see that b2-b4 has been played after the wK move on a5. So, after that, the wBc1 can escape, but must be captured by a7xBb6+ Ka5xb6. If the wK capture the bPa on a5 after Kb4, a5+, Kxa5, the bPa move occurred not to soon and the wBf1 has been captured at home.
Now, we assume that Blacks have only Pawns' moves when the wK is free to come to a5. 7 tempi are necessary to wait: f7-f5xe4xBd3xc2xNb1N, h7-h5 and g7-g5 while Whites are playing g3xQ(B)f4xe5, Kg3-f4-e3-d4-c3(c5)-b4. Blacks have to play rapidly their bPa to escape to the pat, and the wK must capture the bPa (notice that the wBc1 can't reach b6 with Pawns on b4, c5, e5 and g5). The bPf, g and h must begin the sequence from the 7th row and Whites must keep their Q to capture the bBc8 later. After, the wQ captured the bNg8 (the way was closed at the beginning with bP's). Only the wK can provide a shield on f8 to escape to the mat with QxNg8# (the wB has been captured sooner at home by the bQ on pain of do not vanish). But the wK can't live f8 (Ke7+ ? ), and the wQ can't live too because of the black Rook check! The only way consist in capturing the wQ on g8 with the bRa8.
 
The wQ has been captured on g8 by the bRa8!
 
Example of proof game : 1.g4 e5 2.e4 Qh4 3.Qe2 Qg3 4.Qd3 Qxg1 5.Qd5 Qg3 6.Bg2 Be7 7.OO Qe3 8.Bf3 Qe1 9.Be2 Qxc1 10.Bd3 Qe1 11.Qb5 Qe3 12.Qd5 Qg3+ 13.hxg3 Bg5 14.Kh2 Bf4 15.gxf4 f5 16.fxe5 fxe4 17.Kg3 exd3 18.Kf4 dxc2 19.Ke3 cxb1=N 20.Kd4 g5 21.Kc3 h5+ 22.Kb4 a5+ 23.Kxa5 c5+ 24.Kb6 Ra6+ 25.Kc7 Rg6 26.Kd8+ Re6+ 27.Qc6+ Rg6+ 28.Qxc8+ Re6+ 29.Qc6+ Rg6+ 30.Qd5+ Re6+ 31.Kc7 Rc6+ 32.Kxb8 Rg6 33.Qxg8+ Rgxg8 34.Rh1 Rg6 35.Rh3 Rgg8 36.Rf3 Rg6 37.Rf7 Re6 38.b4 Rc6 39.gxh5 Rg6 40.hxg6 OO+
 
3760. Thierry LE GLEUHER
Blacks must escape to the retro-draw (3 identical positions) by moving Pawns. The mat will occur with a bP on b7 with: 1.c6xRd7#.
The bN must avoid b8 because of c7xb8Q(R)#.
Retro :
A.
1.Rd2-d3 Nb6-a8  2.Rd3-d2 Na8-b6  3.Rd2-d3 Nb6-a8  4.Rd3-d2 Na4-b6  5.Rd2-d3 Nb2-a4  6.Rd3-d2 Na4-b2  7.Rd2-d3 Nb2-a4  8.Rd3-d2 Nc4-b2  9.Rd2-d3 Na5-c4  10.Rd3-d2 Nb3-a5  11.Rd2-d3 Na1-b3  12.Rd3-d2 Nb3-a1  13.Rd2-d3 Na5-b3  14.Rd3-d2 Nc4-a5  15.Rd2-d3 Na3-c4  16.Rd3-d2 Nb5-a3  17.Rd2-d3 Na7-b5  18.Rd3-d2 Nb5-a7  19.Rd2-d3 Na7-b5  20.Rd3-d2 b2-b1B       
B.
21.Rd2 Na7-b5  22.Rd3 Na7  23.Rd2 Nb5  24.Rd3 Na3  25.Rd2 Nb1  26.Rd3 Na3  27.Rd2 Nc4  28.Rd3 Na5  29.Rd2 Nb3  30.Rd3 Na1  31.Rd2 Nb3  32.Rd3 Na5  33.Rd2 Nc4  34.Rd3 Nb6  35.Rd2 Na8  36.Rd3 Nb6  37.Rd2 Nb6-a8  38.Rd3-d2 b3-b2
C.
39.~ Na8-b6  40.~ Na8  41.~ Nb6  42.~ Na4  43.~ Nb2  44.~ Na4  45.~ Nb2  46.~ Nc4  47.~ Na5  48.~ Nc4  49.~ Na3  50.~ Nb1  51.~ Na3  52.~ Nb5  53.~ Na7  54.~ Nb5  55.~ Nb5-a7  56.Rd3-d2 b4-b3
D.
57.~ Na7-b5  58.~ Na7  59.~ Nb5  60.~ Na3  61.~ Nb1  62.~ Na3  63.~ Nc4  64.~ Na5  65.~ Nb3  66.~ Na1  67.~ Nb3  68.~ Na5  69.~ Nc4  70.~ Nb2  71.~ Na4  72.~ Nb2  73.~ Na4  74.~ Nb6  75.~ Na8  76.~ Nb6  77.~ Nb6-a8  78.Rd3-d2 g3-g2 because Blacks select the longer cycle to move the Pg (best defense).
D2.
79.~ Na8-b6  80.~ Na8  81.~ Nb6  82.~ Na4  83.~ Nb2  84.~ Na4  85.~ Nb2  86.~ Nc4  87.~ Na5  88.~ Nb3  89.~ Na1  90.~ Nb3  91.~ Na5  92.~ Nc4  93.~ Na3  94.~ Nb1  95.~ Na3  96.~ Nb5  97.~ Na7  98.~ Nb5  99.~ Nb5-a7  100.Rd3-d2 g4-g3
D3.
101.~ Na7-b5  102.~ Na7  103.~ Nb5  104.~ Na3  105.~ Nb1  106.~ Na3  107.~ Nc4  108.~ Na5  109.~ Nb3  110.~ Na1  111.~ Nb3  112.~ Na5  113.~ Nc4  114.~ Nb2  115.~ Na4  116.~ Nb2  117.~ Na4  118.~ Nb6  119.~ Na8  120.~ Nb6  121.~ Nb6-a8  122.Rd3-d2 g5-g4
D4.
123.~ Na8-b6  124.~ Na8  125.~ Nb6  126.~ Na4  127.~ Nb2  128.~ Na4  129.~ Nb2  130.~ Nc4  131.~ Na5  132.~ Nb3  133.~ Na1  134.~ Nb3  135.~ Na5  136.~ Nc4  137.~ Na3  138.~ Nb1  139.~ Na3  140.~ Nb5  141.~ Na7  142.~ Nb5  143.~ Nb5-a7  144.Rd3-d2 g6-g5
D5.
145.~ Na7-b5  146.~ Na7  147.~ Nb5  148.~ Na3  149.~ Nb1  150.~ Na3  151.~ Nc4  152.~ Na5  153.~ Nb3  154.~ Na1  155.~ Nb3  156.~ Na5  157.~ Nc4  158.~ Nb2  159.~ Na4  160.~ Nb2  161.~ Na4  162.~ Nb6  163.~ Na8  164.~ Nb6  165.~ Nb6-a8  166.Rd3-d2 b5-b4
E.
167.~ Na8-b6  168.~ Na8  169.~ Nb6  170.~ Na4  171.~ Nb2  172.~ Na4  173.~ Nb2  174.~ Nc4  175.~ Na5  176.~ Nb3  177.~ Na1  178.~ Nb3  179.~ Na5  180.~ Nc4  181.~ Na3  182.~ Nb1  183.~ Na3  184.~ Na3-b1  185.Rd2-d3 b6-b5
F.
186.~ Nb1-a3  187.~ Nb5  188.~ Na7  189.~ Nb5  190.~ Na3  191.~ Nc4  192.~ Na5  193.~ Nb3  194.~ Na1  195.~ Nb3  196.~ Na5  197.~ Nc4  198.~ Nb2  199.~ Na4  200.~ Nb2  201.~ Nb2-a4  202.Rd3-d2 b7-b6  203.Rd2-d3  and 1.cxd7#
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