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Phénix

No. 120, July-August 2003

4301 - J-M. Chorein
Phenix 120, Jul-Aug 2003

[Rn2k2r/4p2p/1p2P3/1p6/6P1/4K3/P7/8]

5+7. Mate in 6 moves (Monochromatic Chess)

[Rn2k2r/4p2p/1p2P3/1p6/6P1/4K3/P7/8]

Link: Solution


4302 - A. Kisljak
Phenix 120, Jul-Aug 2003

[nb6/krpppp2/1p6/RPN3p1/Qp6/qRP3P1/1PrPPP2/1K3B1n]

13+14. Release the position

[nb6/krpppp2/1p6/RPN3p1/Qp6/qRP3P1/1PrPPP2/1K3B1n]

Link: Solution


4303 - Andrew Buchanan
Phenix 120, Jul-Aug 2003

[8/8/8/8/5P2/PPPPPRP1/pppppPpB/brrbk1K1]

11+11. a) Last move? b) -wRf3 +bPf3. Is the position legal? (Dead Reckonig)

[8/8/8/8/5P2/PPPPPRP1/pppppPpB/brrbk1K1]

Link: Solution


4304 - Andrew Buchanan
Phenix 120, Jul-Aug 2003

[rnbq1rk1/pppppp1p/6p1/8/8/3P4/PPPQPPPP/RN1K1BNR]

15+14. Shortest proof game in 5.0 moves. Before the last move: Shortest proof game in 4.5 moves? (C+)

[rnbq1rk1/pppppp1p/6p1/8/8/3P4/PPPQPPPP/RN1K1BNR]

Link: Solution


4305 (4044bis) - D. Innocenti
Phenix 120, Jul-Aug 2003

(This problem was later found to be cooked)

[rnbqkbnr/pppppppp/8/8/8/P5P1/1PPPPP1P/7K]

9+16. Remove a black officer and put in same place a white officer of the same rank. Then Shortest proof game in 12,0 moves (Einstein chess)

[rnbqkbnr/pppppppp/8/8/8/P5P1/1PPPPP1P/7K]

Link: Solution


4306 - Andrew Buchanan
Phenix 120, Jul-Aug 2003

Typo error. The diagram is a copy of n°4214 Phénix 117.
The problem is updated in Phénix 128.


4307 - Joost de Heer
Phenix 120, Jul-Aug 2003

[3q2nr/ppp2pp1/2p1pkp1/2b2b2/8/1P4n1/1PP1PPP1/RNBQKBNR]

14+15. Shortest proof game in 18,5 moves? (C+)

[3q2nr/ppp2pp1/2p1pkp1/2b2b2/8/1P4n1/1PP1PPP1/RNBQKBNR]

Link: Solution