[Retros] Probleemblad 3-2010

[Joost de Heer]

R371c - Andrei Kornilov, Andrei Frolkin
4BR1k/p3P1Rs/2p1pPKQ/1p3pbr/3p1p1p/2PP4/1P1P2P1/2B5 (13+12)
+---+---+---+---+---+---+---+---+

|   | . |   | . | B | R |   |*K |

+---+---+---+---+---+---+---+---+

|*P |   | . |   | P |   | R |*S |

+---+---+---+---+---+---+---+---+

|   | . |*P | . |*P | P | K | Q |

+---+---+---+---+---+---+---+---+

| . |*P | . |   | . |*P |*B |*R |

+---+---+---+---+---+---+---+---+

|   | . |   |*P |   |*P |   |*P |

+---+---+---+---+---+---+---+---+

| . |   | P | P | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | P |   | P |   | . | P | . |

+---+---+---+---+---+---+---+---+

| . |   | B |   | . |   | . |   |

+---+---+---+---+---+---+---+---+
Last 17 single moves?

R372 - Nikolai Beluhov
Dedicated to Dmitri Baibikov
qk2b3/r1Q1Rp2/PBKRpP2/prpp4/Bp6/1P6/2PPP3/S7 (13+11)
+---+---+---+---+---+---+---+---+

|*Q |*K |   | . |*B | . |   | . |

+---+---+---+---+---+---+---+---+

|*R |   | Q |   | R |*P | . |   |

+---+---+---+---+---+---+---+---+

| P | B | K | R |*P | P |   | . |

+---+---+---+---+---+---+---+---+

|*P |*R |*P |*P | . |   | . |   |

+---+---+---+---+---+---+---+---+

| B |*P |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . | P | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . | P | P | P | . |   | . |

+---+---+---+---+---+---+---+---+

| S |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+
Add the necessary pieces and release the position

R373 - Roberto Osorio, Jorge Lois, Rustam Ubaidullaev
2ss4/ppp2pp1/2r1p3/Pb5p/kr1P4/b7/1P1PPPPP/RSB1KB1R (14+14)
+---+---+---+---+---+---+---+---+

|   | . |*S |*S |   | . |   | . |

+---+---+---+---+---+---+---+---+

|*P |*P |*P |   | . |*P |*P |   |

+---+---+---+---+---+---+---+---+

|   | . |*R | . |*P | . |   | . |

+---+---+---+---+---+---+---+---+

| P |*B | . |   | . |   | . |*P |

+---+---+---+---+---+---+---+---+

|*K |*R |   | P |   | . |   | . |

+---+---+---+---+---+---+---+---+

|*B |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | P |   | P | P | P | P | P |

+---+---+---+---+---+---+---+---+

| R | S | B |   | K | B | . | R |

+---+---+---+---+---+---+---+---+
SPG 19.5 (C+)

R374 - Unto Heinonen
1s1k2s1/1pp1b2p/4pp1r/q3p1p1/1r6/1p5b/1PP1PPPP/RSBQKBSR (14+16)
+---+---+---+---+---+---+---+---+

|   |*S |   |*K |   | . |*S | . |

+---+---+---+---+---+---+---+---+

| . |*P |*P |   |*B |   | . |*P |

+---+---+---+---+---+---+---+---+

|   | . |   | . |*P |*P |   |*R |

+---+---+---+---+---+---+---+---+

|*Q |   | . |   |*P |   |*P |   |

+---+---+---+---+---+---+---+---+

|   |*R |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |*P | . |   | . |   | . |*B |

+---+---+---+---+---+---+---+---+

|   | P | P | . | P | P | P | P |

+---+---+---+---+---+---+---+---+

| R | S | B | Q | K | B | S | R |

+---+---+---+---+---+---+---+---+
SPG 21.5

R375 - Silvio Baier
rsbqk3/ppp5/7s/3P1p2/2PQ3r/PpKP3S/P5P1/RSB2BR1 (14+12)
+---+---+---+---+---+---+---+---+

|*R |*S |*B |*Q |*K | . |   | . |

+---+---+---+---+---+---+---+---+

|*P |*P |*P |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   |*S |

+---+---+---+---+---+---+---+---+

| . |   | . | P | . |*P | . |   |

+---+---+---+---+---+---+---+---+

|   | . | P | Q |   | . |   |*R |

+---+---+---+---+---+---+---+---+

| P |*P | K | P | . |   | . | S |

+---+---+---+---+---+---+---+---+

| P | . |   | . |   | . | P | . |

+---+---+---+---+---+---+---+---+

| R | S | B |   | . | B | R |   |

+---+---+---+---+---+---+---+---+
SPG 21.5 (C+)

R376 - Nicolas Dupont
Dedicated to Silvio Baier
rsbqkbs1/3ppSp1/7S/3B3r/PRR1P1K1/S3P1PS/1B4P1/2Q5 (15+11)
+---+---+---+---+---+---+---+---+

|*R |*S |*B |*Q |*K |*B |*S | . |

+---+---+---+---+---+---+---+---+

| . |   | . |*P |*P | S |*P |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | S |

+---+---+---+---+---+---+---+---+

| . |   | . | B | . |   | . |*R |

+---+---+---+---+---+---+---+---+

| P | R | R | . | P | . | K | . |

+---+---+---+---+---+---+---+---+

| S |   | . |   | P |   | P | S |

+---+---+---+---+---+---+---+---+

|   | B |   | . |   | . | P | . |

+---+---+---+---+---+---+---+---+

| . |   | Q |   | . |   | . |   |

+---+---+---+---+---+---+---+---+
SPG 30.0 (C+)

SOLUTIONS RETRO'S 1-2010
------------------------
R364c - Millour
1. a4(B) h5(B) 2. Ra6(B) h4(A) 3. Rf6(A) h3(B) 4. h4(B) Rh6(B) 5. Rh8(B) Sa6(B) 
6. Rb8(A) h2(A) 7. Rc8(B) h1=B(B) 8. Rcc6(A) Bd5(A) 9. f3(B) Qb8(B) 10. Kf2(B) 
OOO(B) 11. Qe1(B) Rdh8(A) 12. Qe4(A) Kd8(A) 13. Rcd6(B) Be6(B) 14. Kg3(A) 
Bc8(A) 15. Kg4(B) Qe8(A) 16. g3(B) Sb8(A) 17. Rda6(A) Rc6(A) 18. Bh3(B) gf6(B) 
19. Bg2(A) f5(B)
Bc8 is the promoted h-pawn, black queen and king switch places, Rh8 is 
originally from a8, Sb8 makes a switchback.

R367 - Heinonen
1. c4 b5 2. Nc3 b4 3. Rb1 bxc3 4. b4 Nf6 5. Rb3 Ne4 6. Bb2 Nxd2 7. Qa1 Nf3+ 8. 
exf3 g5 9. Ke2 g4 10. Kd3 g3 11. Ne2 gxh2 12. g4 Bh6 13. Bh3 Be3 14. Rd1 h1=N 
15. g5 Ng3 16. g6 Nf5 17. g7 Nh6 18. g8=N f5 19. Nf6+ Kf7 20. Ne4 Ng8 21. Nd2 
Kf6 22. Nb1
Black and white have a Phoenix-Pronkin knight

R368 - Beluhov
White captures are Bc1xb2 and gxh, black captures are axb and b7xc6. To unblock 
the position, one of the kings needs to get space. Because b7xc6 can't be 
retracted until Bc8 is back, the black king needs to be freed first.

1. Bc1xRb2 g3-g2 2. Rd5-d6 g4-g3 3. Rh5-d5 g5-g4 4. Rh8-h5 g6-g5 5. h7-h8=R 
g7-g6 6. g6xSh7 Sf6-h7 7. g5-g6 Sd5-f6 8. g4-g5 Sb6-d5 9. g3-g4 Ba7-b8 10. 
Sb8-a6 h4-h3 11. Sa6-b4 Sb4-a2 12. Qa2-a1 Ra1-b1 13. Qb1-a2 Ra2-a1 14. Qa1-b1 
Bb1-c2 15. Bc2-d1 h5-h4 16. Rd1-d2 h6-h5 and further e.g. 17. Rh1-d1 h7-h6 18. 
Bg5-c1 Kd2-c3 etc.