MESON Chess Problem Database
Problem Display
PID: 70509 (2Q4b/qn5p/8/NpR5/n2k4/3PR3/N3pP1p/K2bB3 w - - 0 1)
Mazul, Waldemar
1st Prize, Suomen Shakki, 1998
#2
9 + 10
| 56 | The Problemist | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Bb3
- 2.Sxb3#
- 1...Sb2
- 2.Bc3#
- 1...Sc3
- 2.Bxc3#
- 1...Sb6
- 2.Bc3#
- 1...Bb3
- Tries
- 1.Rc4+?
- 1...bxc4
- 2.Qxc4#
- 1...Kd5+!
- 1...bxc4
- 1.Rg5?
- threat
- 2.Sc6#
- 2.Qg4#
- 2.Qxh8#
- 1...Qxa5
- 2.Qg4#
- 2.Qxh8#
- 1...Sxa5
- 2.Qg4#
- 1...h1Q
- 2.Qxh8#
- 1...h1B
- 2.Qxh8#
- 1...Qc5
- 2.Qg4#
- 1...Qb6
- 2.Qg4#
- 1...Qb8
- 2.Sc6#
- 1...Qa6
- 2.Qg4#
- 1...Qa8
- 2.Sc6#
- 2.Qg4#
- 1...Bf6
- 2.Sc6#
- 2.Qg4#
- 1...Bg7
- 2.Sc6#
- 2.Qg4#
- 1...Sc3
- 2.Sc6#
- 2.Bxc3#
- 2.Qxc3#
- 2.Qxh8#
- 1...Sac5
- 2.Sc6#
- 2.Bc3#
- 2.Qxh8#
- 1...Sbc5
- 2.Sc6#
- 1...Sd6
- 2.Sc6#
- 1...Sd8
- 2.Qg4#
- 1...h5
- 2.Sc6#
- 2.Qxh8#
- 1...Be5!
- threat
- 1.Rh5?
- threat
- 2.Sc6#
- 2.Qg4#
- 2.Qxh8#
- 1...Qxa5
- 2.Qg4#
- 2.Qxh8#
- 1...Sxa5
- 2.Qg4#
- 1...h1Q
- 2.Qxh8#
- 1...h1B
- 2.Qxh8#
- 1...Qc5
- 2.Qg4#
- 1...Qb6
- 2.Qg4#
- 1...Qb8
- 2.Sc6#
- 1...Qa6
- 2.Qg4#
- 1...Qa8
- 2.Sc6#
- 2.Qg4#
- 1...Bf6
- 2.Sc6#
- 2.Qg4#
- 1...Bg7
- 2.Sc6#
- 2.Qg4#
- 1...Sc3
- 2.Sc6#
- 2.Bxc3#
- 2.Qxc3#
- 2.Qxh8#
- 1...Sac5
- 2.Sc6#
- 2.Bc3#
- 2.Qxh8#
- 1...Sbc5
- 2.Sc6#
- 1...Sd6
- 2.Sc6#
- 1...Sd8
- 2.Qg4#
- 1...Be5!
- threat
- 1.Qd7+?
- 1...Sd6
- 2.Qxd6#
- 1...Kxc5+!
- 1...Sd6
- 1.Rc4+?
- Keys
- 1.Sc3!
- threat
- 2.Sxb5#
- 2.Rd5#
- 1...Qxc5
- 2.Qg4#
- 1...Qxa5
- 2.Rd5#
- 1...Sxc3
- 2.Bxc3#
- 1...Saxc5
- 2.Qxh8#
- 1...Sbxc5
- 2.Sc6#
- 1...h1Q
- 2.Sxb5#
- 1...h1B
- 2.Sxb5#
- 1...Qb6
- 2.Rd5#
- 1...Qa6
- 2.Rd5#
- 1...Bb3
- 2.Sxe2#
- 2.Sxb5#
- 2.Sxb3#
- 1...Sb6
- 2.Sxb5#
- 1...Sd6
- 2.Rd5#
- 1...b4
- 2.Sb5#
- 2.Rc4#
- 2.Rd5#
- threat
- 1.Sc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 9
- REMOVED MATES = 2
- Sets
- B(a);N_GUARD::S(G),XB(a)
- S(d);N_GUARD::B(B)
- S(d);N_GUARD::B(B),XS(d)
- Tries
- Try
- R(H);CHECK
- Vars
- P(f);OGATE,XR(H)::QAR1(I),XP(f)
- Refutation
- K(e);CHECK,P-FLIGHT
- Try
- R(H);
- Threat
- DUALS(3)
- Vars
- S(h);XS(G)::QAR(I)
- P(c);::QAB(I),XB(j)
- Q(g);::QAR(I)
- Q(g);::S(G)
- S(h);::S(G)
- S(h);::QAR(I)
- Refutation
- B(j);
- Try
- R(H);
- Threat
- DUALS(3)
- Vars
- S(h);XS(G)::QAR(I)
- P(c);::QAB(I),XB(j)
- Q(g);::QAR(I)
- Q(g);::S(G)
- S(h);::S(G)
- S(h);::QAR(I)
- Refutation
- B(j);
- Try
- Q(I);CHECK
- Vars
- S(h);N_GUARD,P_SPINS(h)::QAR2(I),XS(h)
- Refutation
- K(e);CHECK,S_FLIGHT,XR(H)
- Try
- Actual
- S(C);
- Threat
- DUALS(2)
- Vars
- Q(g);SBLOCK,XR(H)::QAR(I)
- Q(g);XS(G)::R1(H)
- S(d);OGATE,P_PINS(G),XS(C)::B(B),XS(d)
- S(d);P_PINS(G),SBLOCK,XR(H)::QAB(I),XB(j)
- S(h);SBLOCK,XR(H)::S(G)
- P(c);::S(C),XP(f)
- Q(g);::R1(H)
- S(d);P_PINS(G)::S(C),XP(f)
- S(h);::R1(H)
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).