Recreation HomePage
Advanced shots available in 12x12

section 4
Problems
1. 2.
my-dam-12by12-adv-prob4-1.jpg (22158 bytes) my-dam-12by12-adv-prob4-2.jpg (21877 bytes)
3. (only one possibility for black to draw) 4.
my-dam-12by12-adv-prob4-3.jpg (20256 bytes) my-dam-12by12-adv-prob4-4.jpg (20324 bytes)
5. 6.
my-dam-12by12-adv-prob4-5.jpg (20167 bytes) my-dam-12by12-adv-prob4-6.jpg (20340 bytes)
7. 8.
my-dam-12by12-adv-prob4-7.jpg (20351 bytes) my-dam-12by12-adv-prob4-8.jpg (20477 bytes)
9. 10.
my-dam-12by12-adv-prob4-9.jpg (21484 bytes) my-dam-12by12-adv-prob4-10.jpg (22325 bytes)
Solutions :
Before you go through answers, make sure you tried enough so that you cannot solve it by yourself.
1. 2.
my-dam-12by12-adv-ans4-1.jpg (23234 bytes) my-dam-12by12-adv-ans4-2.jpg (23114 bytes)
3. 4.
notation : top left 1, down right 72
8,30,36,42//54,k45
==========================
1. 45-29 30-35(A)    2. 29-3 35-41(B)
3. 3x25 42-42(C)    4. 54-48 41-46(D)
see NNN

A1 :     1. ---- 42-48    2. 29-3 48x59
    3. 3x66
A2 :    1. ---- 8-14    see notes MMM
A3 :    1. ---- 8-15    see notes NNN
B :    2. ---- 42-48    3. 3-14 48x59
    4. 14-66
C1 :     3. ---- 42-48    4. 25-70
C2 :    3. ---- 41-46     see note OOO
==========================
MMM : 20,30,36//54,k48
1. 54-47 20-26        2. 48-65 26-31
3. 65-52 31-38        4. 52x24 38-44
5. 24-56
==========================
NNN : 21,30,36//54,k48
1. 54-47 21-28(P)    2. 48-54 28-34(Q)
3. 59-46

P :    5. ---- 21-27    6. 48-54 27-32
    7. 59-46 see notes at MMM
Q :    6. ---- 30-35    7. 47-41
==========================
OOO : 36,42,46//54,k25
1. 25-19 46-53(G)    2. 19-71 42-24(H)
3. 54x41 36-42(I)    4. 41-34 42-48
5. 34-28 53-59        6. 28-21 48-54
7. 21-15 54-60        8. 15-8 59-66 draw

G : 1. ---- 42-48     2. 19-14
H : 2. ---- 42-48     3. 54-47 53x42
4. 71-60
I : 3. ---- 53-59    4. 41-35

==========================

 notation : top left 1, down right 72
1,32,60//8,20,k64

==========================
1. 8-2 32-38(A)    2. 64-25 60-66(B)
3. 25-19 66-71(C)    4. 19-13 71-66(D)
5. 19-14 66x7     similar to NNN

A1: 1. --- 32-39    2. 2-54
A2: 1. --- 60-66    2. 64-53 66-71(E)
3. 53x66 71-60    4. 20-15

E1: 2. --- 66-72    3. 20-14
E2: 2. --- 32-39    3. 53-72 39-45
4. 72-46 45-51    5. 46-63

B: 2. --- 1-7    3. 2x13 60-66
4. similar to PPP
C: 3. --- 1-7    4. 2x13 66-72
5. 25-14 72-53    6. 14-1
D: 4. --- 1-7    5. 2-60
==========================
MMM : 7,k2//13,60
1. 13-19 7-14(P)     2. 19x8
P: 1. ---- 7-13    2. 19-8
==========================
NNN : 1,k7//2,13
1. 13-19 7-13(Q)    2. 19-71 1-7
3. 2-8 7-14        4. 8x19
Q: 1. ---- 7-33        2. 19-14
==========================
OOO : 1,57//20,k2,k72
1. 20-15 1-7(R)        2. 2x13 57-63
3. 13-2    63-68        4. 72-46
R: 1. ---- 57-63     2. 72-46 1-7
3. 46x68
==========================
PPP : 66//20,k13,k25
1. 13-71 66-72        2. 25-14 72-40
3. 14-1
==========================
5. 6.
==========================
notation : top left 1, down right 72
k5//k39,k61,k62
==========================
1. 62-49 5-24(A)    2. 49-68 24-5(B)
3. 39-50 5-18(C) similar to MMM
A: 1. ---- 5-18     2. 67-61 18-24
3. 49-68 24-5    4. 67-18 5x24
5. 39-52 24x57    5. 68x41
B: 2. ---- 24-18     3. 68-24 18-62
4. 24-18 62x12    5. 61-67
C: 3. ---- 5-24    4. 50-56 24-5
5. 56-43
==========================
MMM:
k18//k50,k61,k68
1. 68-24 18-40(M)    2. 24-18 40x12
3. 61-67 12-6        4. 50-61 6-12
5. 61-6
M: 1. --- 18-12        2. 61-67 12-6
3. 67-61
==========================		 ==========================
notation : top left 1, down right 72
42,k71//k54,k60,k66
==========================
1. 54-59 71-13(A)    2. 59-14 13-71(B)
3. 14-20 71-19(C)    4. 20-31 42-48(D)
5. 31-64 19-3(E)    6. 66-59 3-35(F)
7. 59-72 35-24(G)    8. 64-53 24-63
9. 53-42 48x35        10. 72-46 63x41
11. 60x28
==========================
A : 1. --- 42-48    2. 59-53 71-13(H)
3. 66-71
==========================
B : 2. --- 42-47    3. 60x2 13-39
4. 14-19 39x13    5. 66-71
==========================
C1: 3. --- 71-13     4. 66-71
C2: 3. --- 42-48    4. 60-2    71x60
5. 20-15
C3: 3. --- 19-65    4. 60-54 65x48
5. 31-70
==========================
D1: 4. --- 19-25    5. 66-53
D2: 4. --- 19-71    5. 60-2 71x60
6. 31-15
D3: 4. --- 19-3        5. 66-7 13x2
6. 31-15
==========================
E1: 5. --- 19-52    6. 64-42 48x35
7. 66-46
==========================
F1: 6. --- 48-54    7. 59x48 3-14
8. 60-8 14x3    9. 64-25
F2: 6. --- 3-9        7. 64-42 48x35
8. 60-41
==========================
G : 7. --- 35-3        8. 64-25
==========================
H : 2. --- 71-52    3. 53-42 48x35
4. 60-41
==========================
7. 8.
notation : top left 1, down right 72
10,24,k4//k37,k50,k70
1. 70-51 10-16(A)        2. 50-6 16-22(B)
3. 6x55 4-10        4. 51-62 10-4(F)
5. 55-6 4-36        6. 62-51 36-4(H)
7. 51-29 4-36(I)    8. 37-4 24-30(J)
9. 29-35 30x41        10. 6-17
==========================
A1: 1. --- 10-17    2. 50x6 24-30
3. 6-55 30-35(D)    4. 55-49 35-41(E)
5. 51-31
A2: 1. --- 24-30    2. 50-69 any mv
3. 37-31
==========================
D : 3. --- 4-10     4. 51-62 10-4(K)
5. 62-34 4-10    6. 55-49 10-17
7. 49-10
==========================
K : 4. --- 10-27     5. 37-43
==========================
E1: 4. --- 4-17(or 4-30)5. 51-29 35x22
6. 49-16
E2: 4. --- 4-36        5. 49-43 35-42
6. 51-31
==========================
B1: 2. --- 11-36    3. 51-64 36x69
4. 6-50
B2: 2. --- 4-10        3. 6-22
B3: 2. --- 24-30    3. 51-23
B4: 2. --- 16-21    3. 51-18
==========================
C1: 3. --- 24-30    4. 51-34 4-10
5. 55-49 10-17    6. 49-10 17x4
7. 34-15
C2: 3. --- 4-30    4. 55-6 30-68
5. 37-43 24-30    6. 43-49
==========================   
F1: 4. --- 10-21(24-30) 5. 37-43 21x49
6. 62-68
==========================   
G: 5. --- 24-30    6. 6-39 4-10
7. 62-49 10-23    8. 49-10
==========================   
H: 6. --- 36-47(24-30) 7. 51-64
==========================
I: 7. --- 24-30    8. 29-9
==========================   
J: 8. --- 36-69    9. 29-42
==========================    		notation : top left 1, down right 72
10,24,k36//k29,k44,k69

1. 29-62 10-16(A)    2. 69-37 36-4(B)
3. 44-6 4-36(C)    4. 62-40 16-22
5. 6x55 36-10(E)    6. 40-62 10-36(F)
7. 55-6 36-4        8. 62-29 4-36
9. 37-4 24-30        10. 29-35
==========================
A1: 1. --- 36-30    2. 44-6 10-17(P)
3. 6x55 30-36(Q) 4. 55-6 36-4
5. 69-37 4-36(R) 6. 62-29
A2: 1. --- 10-17    2. 44x6 36-4
3. 69-37 4-36    4. 62-29
==========================
B: 2. 16-22 44x6     3. 44x6 36-4
4. 62-29 now like in main variant
==========================
C1: 3. --- 16-22    4. 6x55 24-30(S)
5. 62-34 4-10    6. 55-49
C2: 3. --- 16-21    4. 62-18
C3: 3. --- 24-30    4. 62-23
==========================
E: 5. --- 36-30    6. 55-6 30-68
7. 37-43 24-30    8. 43-49
==========================
F: 6. --- 10-4    7. 55-6 24-30(T)
8. 6-28 4-10    9. 62-49
==========================
P1: 2. --- 30-68    3. 69-50
P2: 2. --- 10-16    3. 6-22
==========================
Q1: 3. --- 30-4    4. 69-37 24-30
5. 62-34 4-10    6. 55-49 10-17
7. 49-10
Q2: 3. --- 30-35    4. 69-63 30-68
5. 55-49
==========================
R: 5. --- 24-30    6. 6-28 4-10
7. 62-49
==========================
S: 4. --- 4-36    5. 55-6 36-4
6. 62-29 now like in main variant
==========================
T: 7. --- 4-36    8. 62-29
==========================
9. 10.
notation : top left 1, down right 72
1. 48-42 16x48    2. 36-30 4x36
3. 24-18 5x24        4. 68-63 24x68
5. 69-64 36x69    6. 70-65 48x70
7. 67-62 68x55    8. 61x50 69x43
9. 49x38 70x31    10. 37x4		 notation : top left 1, down right 72
1. 66-59 7x66        2. 72x40 67x34
3. 12x51 25x57    4. 70x44 6x50
5. 61x28 60x21    6. 2x41    68x30
7. 24x52 13x58    8. 71x32 5x38
9. 49x16 3x22        10. 48x3
Thushara Wickramasinghe,638/3,Athurugiriya,Sri Lanka
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