MESON Chess Problem Database
Problem Display
PID: 91465 (8/1q6/6B1/2p5/2Pk1P2/5pK1/Nn1N1P2/5Q2 w - - 0 1)
Visbeen, Frank
Probleemblad, 1975
#2
8 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe4
- 2.Sb3#
- 1...Qd5
- 2.Sb3#
- 1...Qa6
- 2.Sb3#
- 2.Sxf3#
- 1...Qc6
- 2.Sb3#
- 1...Qa8
- 2.Sb3#
- 1...Qc8
- 2.Sb3#
- 2.Sxf3#
- 1...Qb3
- 2.Sxb3#
- 1...Qb4
- 2.Sxf3#
- 1...Qb5
- 2.Sxf3#
- 1...Qb6
- 2.Sxf3#
- 1...Qa7
- 2.Sb3#
- 2.Sxf3#
- 1...Qc7
- 2.Sb3#
- 2.Sxf3#
- 1...Qd7
- 2.Sb3#
- 2.Sxf3#
- 1...Qe7
- 2.Sb3#
- 2.Sxf3#
- 1...Qf7
- 2.Sb3#
- 2.Sxf3#
- 1...Qg7
- 2.Sb3#
- 2.Sxf3#
- 1...Qh7
- 2.Sb3#
- 2.Sxf3#
- 1...Qb8
- 2.Sxf3#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sxc4
- 2.Qd3#
- 2.Qxc4#
- 1...Qe4
- Tries
- 1.Kh2?
- 1...Sxc4
- 2.Qd3#
- 2.Qxc4#
- 1...Qe4
- 2.Sb3#
- 1...Qd5
- 2.Sb3#
- 1...Qa6
- 2.Sb3#
- 2.Sxf3#
- 1...Qc6
- 2.Sb3#
- 1...Qa8
- 2.Sb3#
- 1...Qc8
- 2.Sb3#
- 2.Sxf3#
- 1...Qb3
- 2.Sxb3#
- 1...Qb4
- 2.Sxf3#
- 1...Qb5
- 2.Sxf3#
- 1...Qb6
- 2.Sxf3#
- 1...Qa7
- 2.Sb3#
- 2.Sxf3#
- 1...Qc7
- 2.Sb3#
- 2.Sxf3#
- 1...Qd7
- 2.Sb3#
- 2.Sxf3#
- 1...Qe7
- 2.Sb3#
- 2.Sxf3#
- 1...Qf7
- 2.Sb3#
- 2.Sxf3#
- 1...Qg7
- 2.Sb3#
- 2.Sxf3#
- 1...Qb8
- 2.Sxf3#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Qh7+!
- 1...Sxc4
- 1.Bb1?
- 1...Sxc4
- 2.Qd3#
- 2.Qxc4#
- 1...Qe4
- 2.Sb3#
- 1...Qd5
- 2.Sb3#
- 1...Qa6
- 2.Sb3#
- 2.Sxf3#
- 1...Qc6
- 2.Sb3#
- 1...Qa8
- 2.Sb3#
- 1...Qc8
- 2.Sb3#
- 2.Sxf3#
- 1...Qb3
- 2.Sxb3#
- 1...Qb4
- 2.Sxf3#
- 1...Qb5
- 2.Sxf3#
- 1...Qb6
- 2.Sxf3#
- 1...Qa7
- 2.Sb3#
- 2.Sxf3#
- 1...Qc7
- 2.Sb3#
- 2.Sxf3#
- 1...Qd7
- 2.Sb3#
- 2.Sxf3#
- 1...Qe7
- 2.Sb3#
- 2.Sxf3#
- 1...Qf7
- 2.Sb3#
- 2.Sxf3#
- 1...Qh7
- 2.Sb3#
- 2.Sxf3#
- 1...Qb8
- 2.Sxf3#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Qg7+!
- 1...Sxc4
- 1.Bc2?
- 1...Sxc4
- 2.Qd3#
- 2.Qxc4#
- 1...Qe4
- 2.Sb3#
- 1...Qd5
- 2.Sb3#
- 1...Qa6
- 2.Sb3#
- 2.Sxf3#
- 1...Qc6
- 2.Sb3#
- 1...Qa8
- 2.Sb3#
- 1...Qc8
- 2.Sb3#
- 2.Sxf3#
- 1...Qb3
- 2.Sxb3#
- 1...Qb4
- 2.Sxf3#
- 1...Qb5
- 2.Sxf3#
- 1...Qb6
- 2.Sxf3#
- 1...Qa7
- 2.Sb3#
- 2.Sxf3#
- 1...Qc7
- 2.Sb3#
- 2.Sxf3#
- 1...Qd7
- 2.Sb3#
- 2.Sxf3#
- 1...Qe7
- 2.Sb3#
- 2.Sxf3#
- 1...Qf7
- 2.Sb3#
- 2.Sxf3#
- 1...Qh7
- 2.Sb3#
- 2.Sxf3#
- 1...Qb8
- 2.Sxf3#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Qg7+!
- 1...Sxc4
- 1.Bf5?
- 1...Sxc4
- 2.Qd3#
- 2.Qxc4#
- 1...Qe4
- 2.Sb3#
- 1...Qd5
- 2.Sb3#
- 1...Qa6
- 2.Sb3#
- 2.Sxf3#
- 1...Qc6
- 2.Sb3#
- 1...Qa8
- 2.Sb3#
- 1...Qc8
- 2.Sb3#
- 2.Sxf3#
- 1...Qb3
- 2.Sxb3#
- 1...Qb4
- 2.Sxf3#
- 1...Qb5
- 2.Sxf3#
- 1...Qb6
- 2.Sxf3#
- 1...Qa7
- 2.Sb3#
- 2.Sxf3#
- 1...Qc7
- 2.Sb3#
- 2.Sxf3#
- 1...Qd7
- 2.Sb3#
- 2.Sxf3#
- 1...Qe7
- 2.Sb3#
- 2.Sxf3#
- 1...Qf7
- 2.Sb3#
- 2.Sxf3#
- 1...Qh7
- 2.Sb3#
- 2.Sxf3#
- 1...Qb8
- 2.Sxf3#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Qg7+!
- 1...Sxc4
- 1.Qe2?
- threat
- 2.Qe3#
- 2.Qe5#
- 1...Sxc4
- 2.Qd3#
- 2.Qxc4#
- 1...Qd5
- 2.Sb3#
- 2.Qe3#
- 1...Qe4
- 2.Sb3#
- 2.Qxe4#
- 1...Qb3
- 2.Sxb3#
- 2.Qe4#
- 2.Qe5#
- 1...Qc7
- 2.Sb3#
- 2.Sxf3#
- 2.Qe3#
- 2.Qe4#
- 1...Qe7
- 2.Sb3#
- 2.Sxf3#
- 1...Qg7
- 2.Sb3#
- 2.Sxf3#
- 2.Qe3#
- 2.Qe4#
- 1...Qb8
- 2.Sxf3#
- 2.Qe3#
- 2.Qe4#
- 1...Sd1
- 2.Qd3#
- 2.Qe5#
- 1...Sd3
- 2.Qxd3#
- 2.Qe3#
- 1...fxe2!
- threat
- 1.Kh2?
- Keys
- 1.Qb1!
- 1...Sxc4
- 2.Qd3#
- 1...Qd5
- 2.Qxb2#
- 1...Qe4
- 2.Qxe4#
- 1...Qa6
- 2.Qe4#
- 2.Qxb2#
- 1...Qc6
- 2.Qxb2#
- 1...Qa8
- 2.Qxb2#
- 1...Qc8
- 2.Qe4#
- 2.Qxb2#
- 1...Qb3
- 2.Qe4#
- 1...Qb4
- 2.Qe4#
- 1...Qb5
- 2.Qe4#
- 1...Qb6
- 2.Qe4#
- 1...Qa7
- 2.Qe4#
- 2.Qxb2#
- 1...Qc7
- 2.Qe4#
- 2.Qxb2#
- 1...Qd7
- 2.Qe4#
- 2.Qxb2#
- 1...Qe7
- 2.Qxb2#
- 1...Qf7
- 2.Qe4#
- 2.Qxb2#
- 1...Qg7
- 2.Qe4#
- 2.Qxb2#
- 1...Qh7
- 2.Qe4#
- 2.Qxb2#
- 1...Qb8
- 2.Qe4#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sxc4
- 1.Qb1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 9
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Q(e);N_GUARD::S(C)
- Q(e);N_GUARD::S(C),XQ(e)
- Q(e);N_GUARD::S(C),XP(b)
- Q(e);N_GUARD,P_PINP(G)::S(C),XP(b)
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- Q(e);N_GUARD::S(C)
- Q(e);N_GUARD::S(C),XQ(e)
- Q(e);N_GUARD::S(C),XP(b)
- Q(e);N_GUARD,P_PINP(G)::S(C),XP(b)
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- Q(e);CHECK
- Try
- B(H);
- Vars
- Q(e);N_GUARD::S(C)
- Q(e);N_GUARD::S(C),XQ(e)
- Q(e);N_GUARD::S(C),XP(b)
- Q(e);N_GUARD,P_PINP(G)::S(C),XP(b)
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- Q(e);CHECK
- Try
- B(H);
- Vars
- Q(e);N_GUARD::S(C)
- Q(e);N_GUARD::S(C),XQ(e)
- Q(e);N_GUARD::S(C),XP(b)
- Q(e);N_GUARD,P_PINP(G)::S(C),XP(b)
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- Q(e);CHECK
- Try
- B(H);
- Vars
- Q(e);N_GUARD::S(C)
- Q(e);N_GUARD::S(C),XQ(e)
- Q(e);N_GUARD::S(C),XP(b)
- Q(e);N_GUARD,P_PINP(G)::S(C),XP(b)
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- Q(e);CHECK
- Try
- Q(A);
- Threat
- DUALS(2)
- Refutation
- P(b);XQ(A)
- Try
- Actual
- Q(A);
- Vars
- S(a);N_GUARD,XP(F)::QAR1(A)
- Q(e);N_GUARD::QAB(A),XS(a)
- Q(e);N_GUARD::QAR1(A),XQ(e)
- Q(e);N_GUARD::QAR1(A)
- Q(e);N_GUARD,P_PINP(G)::QAR1(A)
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
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).