MESON Chess Problem Database
Problem Display
PID: 12305 (8/8/1pprbQ1K/1pk4p/1n2Bn1r/4N3/1B1N4/8 w - - 0 1)
Laiho, Aulis
1st Prize, Satakunnan TT, 1977
#2
6 + 10
| 3750 | FIDE Album (1977-1979) | 1984 |
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Qxd4#
- 1...Bb3
- 2.Sxb3#
- 1...Bh3
- 2.Sb3#
- 1...Bg4
- 2.Sb3#
- 1...Bd5
- 2.Bd4#
- 1...Bf5
- 2.Sb3#
- 1...Bd7
- 2.Sb3#
- 1...Bc8
- 2.Sb3#
- 1...Sbd5
- 2.Qd4#
- 1...Sfd5
- 2.Sb3#
- 2.Bd4#
- 2.Qd4#
- 1...Rd4
- Tries
- 1.Qe5+?
- 1...Rd5
- 2.Sb3#
- 2.Bd4#
- 1...Sbd5
- 2.Qd4#
- 1...Sfd5
- 2.Sb3#
- 2.Bd4#
- 2.Qd4#
- 1...Bd5+!
- 1...Rd5
- 1.Qe5+?
- Keys
- 1.Bd5!
- threat
- 2.Sb3#
- 2.Se4#
- 2.Bd4#
- 2.Qc3#
- 2.Qd4#
- 1...Rxd5
- 2.Se4#
- 1...Bxd5
- 2.Bd4#
- 1...Sbxd5
- 2.Qd4#
- 1...Sfxd5
- 2.Sb3#
- 1...cxd5
- 2.Qc3#
- 1...Rd7
- 2.Se4#
- 1...Rd8
- 2.Se4#
- 1...Sa2
- 2.Qd4#
- 1...Sc2
- 2.Qc3#
- 1...Sbd3
- 2.Qc3#
- 2.Qd4#
- 1...Sa6
- 2.Qc3#
- 2.Qd4#
- 1...Bh3
- 2.Sb3#
- 2.Se4#
- 2.Bd4#
- 1...Bg4
- 2.Sb3#
- 2.Se4#
- 2.Bd4#
- 1...Bf5
- 2.Sb3#
- 2.Bd4#
- 1...Bd7
- 2.Sb3#
- 2.Se4#
- 2.Bd4#
- 1...Bf7
- 2.Sb3#
- 2.Se4#
- 2.Bd4#
- 1...Bc8
- 2.Sb3#
- 2.Se4#
- 2.Bd4#
- 1...Bg8
- 2.Sb3#
- 2.Se4#
- 2.Bd4#
- 1...Se2
- 2.Sb3#
- 1...Sg2
- 2.Sb3#
- 1...Sfd3
- 2.Sb3#
- 1...Sh3
- 2.Sb3#
- 1...Sg6
- 2.Sb3#
- threat
- 1.Bd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 7
- Sets
- R(i);N_GUARD::QAB1(E),XR(i)
- B(j);N_GUARD,P_PINQ(E)::S(B),XB(j)
- B(j);N_GUARD,P_PINQ(E)::S(B)
- B(j);P_PINQ(E),S_CUTR(i)::B(A)
- S(a);S_CUTR(i)::QAB1(E)
- Tries
- Try
- Q(E);CHECK
- Vars
- S(a);P_SPINS(a),S_CUTR(i)::QAB1(E)
- Refutation
- B(j);CHECK,P_SPINB(j)
- Try
- Actual
- B(D);
- Threat
- DUALS(5)
- Vars
- R(i);XB(D)::S(B)
- B(j);P_PINQ(E),XB(D)::B(A)
- S(a);XB(D)::QAB1(E)
- S(b);XB(D)::S(B)
- P(h);XB(D)::QAR2(E)
- R(i);::S(B)
- S(a);::QAB1(E)
- S(a);::QAR2(E)
- S(b);::S(B)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).