Problems with the four new pieces for the NK (ENG)

Problems especially to prepare oneself for the Dutch Championship

Group 1 : Elementary exercises

Group 3 : Advanced problems

Group 4 : Complex combinations

Group 5 : More difficult questions

Group 6 : Intricate problems

Please click the diagrams to enlarge them!

Group 2: Simple questions

Position 2.1

White: K e1, Ps b5, R b1, Kt e2, a5, f2, g2, g3 (4+4 pieces)
Black: K f8, Es e5, R g7, B b8, c4, f7, h4 (4+3 pieces)
2.1 W: White to move can win
2.1 B: Black to move wins quickly
Solution 2.1

Position 2.2

White: K g1, Ps a2, d4, f2, g2, h3 (2+4 pieces)
Black: K h8, Es b8, a6, e5, f7, g6, h7 (2+5 pieces)
2.2 W: White to move can easily win
2.2 B1: Move the black King to f8. Now Black to move easily wins
2.2 B2: Move pawn h3 to h2 and omit the black pawn on a6. Now Black to move also wins (black King on f8)
Solution 2.2

Position 2.3

White: K g1, Ps c2, c3, f2, g2, h2 (2+4 pieces)
Black: K h8, Es b7, Kt g6, d7, e6, f7, h7 (3+4 pieces)
2.3 W: White to move wins easily
2.3 B: Black to move wins easily
Solution 2.3

Position 2.4

White: K f1, A e1, R h2, b2, g2 (3+2 pieces)
Black: K g8, A a8, Es g7, b7, d7, e7 (3+3 pieces)
2.4 W: White to move mates in 6
2.4 B: Black to move mates in 5
Solution 2.4

Position 2.5

White: K g2, Q e3, Ps h4, R h1, B f3, B g1, Kt f1, Kt f2, b4, c5, e5, f4, g3 (8+5 pieces)
Black: K h8, Es b1, Ps h5, R g4, B c8, Kt c7, a4, b5, c6, f7 (6+4 pieces)
2.5 W: White to move mates quickly
2.5 B: Black to move mates in 5
Solution 2.5

Position 2.6

White: K h1, V b4, B c3, Kt c1, a5, g2, g5, h2 (4+4 pieces)
Black: K d8, V f4, B a7, Kt d1, f7 (4+1 pieces)
2.6 W: White to move mates in 5
2.6 B: Black to move mates in 6
Solution 2.6

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Solutions

Hereafter we give solutions (not yet completed) to the problems formulated above. Next to the main variants most, but not always all, variants are given. A (small) part of the solution complex is sometimes left to the reader as an exercise.

Solution 2.1 W 1. Ps b5-a3 † A. 1. ..., K f8-g8 2. R b1xb8 †, K g8-h7 3. Ps a3-f8 † a. 3. ..., K h7-g8 4. Ps f8-g6 †, Es e5-e8 5. R b8xe8 † mate b. 3. ..., K h7-h6 4. R b8-b6 † etc. B. 1. ..., K f8-e8 2. R b1xb8 †, K e8-d7 3. Ps a3-f8 † a. 3. ..., K d7-c7 4. R b8-b7 † a.1. 4. ..., K c7-c6 5. Ps f8-b4 † etc. a.2. 4. ..., K c7-d8 5. R b7-d7 †, K d8-c8 or e8 6. Ps f8-d6 † etc. b. 3. ..., K d7-c6 4. R b8-b6 †, K c6-c7 5. R b6-b7 † etc. (Please note: 4. Ps f8xg7?, Es e5-d3 † 5. K e1-f1, Es d3-d1 † mate ) Solution 2.1 B 1. ..., Es e5-d3 † 2. K e1-f1, Es d3-d2 † A. 3. K f1-e1, Es d2xb1 † etc. B. 3. K f1-g1, Es d2xb1 † 4. Kt e2-c1, Es b1xc1 † 5. K g1-h2, Es c1-f1 † 6. K h2-h3, Es f1-h1 † mate Position 2.2	Solution 2.2 W 1. Ps a2xf7 †, K h8-g7 2. Ps f7xe5 †, K g7-f8 3. Ps e5xb8 Solution 2.2 B1 1. ..., Es b8-b2 2. Ps a2-c3, Es b2-c2 3. Ps c3-d5, Es c2-c1 † 4. K g1-h2, Es c1-f1 † mate Solution 2.2 B2 1. ..., Es b8-b2 2. Ps a2-c3, Es b2-c2 3. Ps c3-b5, Es c2-e1 † 4. Ps b5-f1, e5xd4 5. f2-f4, d4-d3 6. K g1-f2, Es e1-d1 † 7. K f2-g1, d3-d2 and Black wins Position 2.3
Solution 2.3 W 1. Ps c2-e4, threatening Ps e4xb7 and Ps e4-f6 † mate Solution 2.3 B 1. ..., Es b7-b2 A. 2. Ps c2-d4 †, e6-e5 B. 2. Ps c2-e1, Es b2-d1 3. K g1-f1, Kt g6-f4 4. g2-g3, Kt f4-d3 5. K f1-e2, Es d1xe1 † C. 2. Ps c2-e3, Es b2-b1 † 3. Ps e3-f1, Kt g6-f4 a. 4. g2-g3, Kt f4-e2 † 5. K g1-g2, Es b1-e1 † b. 4. f2-f3, Es b1-d1 5. g2-g3, Kt f4-d3 6. K g1-g2, Es d1-f2 † Position 2.4	Solution 2.4 W 1. R h2-h8 †, K g8xh8 2. A e1-h4 †, K h8-g8 3. A h4-h6 †, K g8-f8 4. A h6-h8 †, Es g7-g8 5. A h8-h7 †, K f8-e8 6. A h7xg8 † mate Solution 2.4 B 1. ..., Es g7-f5 † A. 2. K f1-g1, A a8-b6 † 3. K g1-h1, Es f5-f2 † 4. K h1-g1, Es f2-d1 †! 5. K g1-f1, A b6-f2 † mate Also possible is 4. ..., Es f2-e2 or f3 † Also nice (but not mate in 5) is: 4. ..., Es f2-h3 † 5. K g1-h1, A b6-g1 † 6. A e1xg1, Es e2-g3 † mate B. 2. A e1-f3, A a8-a1 † 3. K f1-e2, A a1-c1 † 4. K e2-f2, A c1-d1 † mate C. 2. K f1-e2, A a8-a6 † a. 3. K e2-d1, Es f5-d4 † 4. K d1-c1, A a6-a1 † mate b. 3. K e2-d2, A a6-c4 † 4. K d2-d1, A c4xb2 † mate c. 3. A e1-d3, Es f5-f4 † 4. K e2-e1, A a6xd3 † mate Position 2.5
Solution 2.5 W 1. Ps h4-f6 †, R g4-g7 2. R h1xh5 † mate Solution 2.5 B 1. ..., Es b1-e1 † A. 2. Q e3xe1, Ps h5xf4 † 3. K g2-h2, R g4xh4 † 4. Kt f2-h3, R h4xh3 † mate B. 2. K g2-h3, R g4xg3 † 3. K h3-h2, Es e1xf1 † mate (Not 2. ..., R g4xh4 † 3. K h3xh4, Ps h5-g6 † 4. K h4-g5 †) C. 2. K g2-h2, Es e1xf1 † 3. K h2-g2, Es f1xe3 † 4. K g2-h2, R g4xh4 † a. 5. g3xh4, Ps h5xf4 † mate b. 5. Kt f2-h3, R h4xh3 † mate (or 5. ..., Ps h4xf3 † mate ) Transposition of moves is possible here Position 2.6	Solution 2.6 W 1. V b4-c6 † A. 1. ..., K d8-c8 2. V c6-d6 †, K c8-b8 (2.. ..., K c8-d8 3. B c3-f6 † mate ) 3. V d6-d7 †, K b8-b7 4. a5-a6 †, K b7-a8 or xa6 5. V d7-c7 † mate ! B. 1. ..., K d8-e8 2. V c6-d6 †, K e8-f8 3. V d6-d7 †, K f8-g8 4. V d7-e7 †, K g8-h7 5. V e7-f8 † mate Solution 2.6 B 1. ..., Kt d1-f2 † 2. K h1-g1, Kt f2-e4 † A. 3. K g1-h1, Kt e4-g3 †! 4. h2xg3, V f4xg3 † mate B. 3. K g1-f1, V f4-e3 † 4. K f1-e1, V e3-f2 † mate C. 3. V b4-c5, B a7xc5 † 4. B c3-d4, B c5xd4 † 5. K g1-f1, V f4-e3 † 6. K f1-e1, V e3-f2 † mate (or 6. ..., V e3-d2 † mate )

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With thanks to the webmaster Marion van den Bol for her dedication and to Wim Vriend for the diagrams and his assistance in analysing these problems.

S.E. et O.