MESON Chess Problem Database
Problem Display
PID: 93281 (8/b7/4KB2/8/4k3/Q4R2/8/4n3 w - - 0 1)
Kjaer, Harald
Skakbladet, 1967
#2
4 + 3
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bg1
- 2.Qa8#
- 1...Bf2
- 2.Qa8#
- 1...Be3
- 2.Qxe3#
- 1...Bd4
- 2.Qa8#
- 1...Bc5
- 2.Qa8#
- 1...Bb6
- 2.Qa8#
- 1...Bb8
- 2.Qe3#
- 2.Qa8#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Bg1
- Tries
- 1.Ba1?
- 1...Be3
- 2.Qxe3#
- 1...Sd3
- 2.Qxd3#
- 1...Bg1
- 2.Qa8#
- 1...Bf2
- 2.Qa8#
- 1...Bd4
- 2.Qa8#
- 1...Bc5
- 2.Qa8#
- 1...Bb6
- 2.Qa8#
- 1...Bb8
- 2.Qe3#
- 2.Qa8#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sxf3!
- 1...Be3
- 1.Bb2?
- 1...Be3
- 2.Qxe3#
- 1...Sd3
- 2.Qxd3#
- 1...Bg1
- 2.Qa8#
- 1...Bf2
- 2.Qa8#
- 1...Bd4
- 2.Qa8#
- 1...Bc5
- 2.Qa8#
- 1...Bb6
- 2.Qa8#
- 1...Bb8
- 2.Qe3#
- 2.Qa8#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sxf3!
- 1...Be3
- 1.Be5?
- threat
- 2.Rf4#
- 1...Be3
- 2.Rxe3#
- 2.Qxe3#
- 1...Sd3
- 2.Qxd3#
- 1...Sg2
- 2.Qd3#
- 1...Sxf3!
- threat
- 1.Bg5?
- threat
- 2.Rf4#
- 1...Kd4
- 2.Rf4#
- 2.Qb4#
- 1...Be3
- 2.Qxe3#
- 1...Sd3
- 2.Qxd3#
- 1...Bb8
- 2.Qe3#
- 1...Sg2
- 2.Qd3#
- 1...Sxf3!
- threat
- 1.Bg7?
- 1...Be3
- 2.Qxe3#
- 1...Sd3
- 2.Qxd3#
- 1...Bg1
- 2.Qa8#
- 1...Bf2
- 2.Qa8#
- 1...Bd4
- 2.Qa8#
- 1...Bc5
- 2.Qa8#
- 1...Bb6
- 2.Qa8#
- 1...Bb8
- 2.Qe3#
- 2.Qa8#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sxf3!
- 1...Be3
- 1.Bh8?
- 1...Be3
- 2.Qxe3#
- 1...Sd3
- 2.Qxd3#
- 1...Bg1
- 2.Qa8#
- 1...Bf2
- 2.Qa8#
- 1...Bd4
- 2.Qa8#
- 1...Bc5
- 2.Qa8#
- 1...Bb6
- 2.Qa8#
- 1...Bb8
- 2.Qe3#
- 2.Qa8#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sxf3!
- 1...Be3
- 1.Qb4+?
- 1...Bd4
- 2.Qb7#
- 1...Kxf3!
- 1...Bd4
- 1.Qb3?
- threat
- 2.Qd5#
- 2.Qb7#
- 1...Be3
- 2.Qd5#
- 2.Qxe3#
- 1...Bb6
- 2.Qd5#
- 1...Sxf3!
- threat
- 1.Qa4+?
- 1...Bd4
- 2.Qc6#
- 2.Qa8#
- 1...Kxf3!
- 1...Bd4
- 1.Ba1?
- Keys
- 1.Bd4!
- threat
- 2.Qe3#
- 1...Kxd4
- 2.Rf4#
- 2.Qb4#
- 1...Bxd4
- 2.Qa8#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- threat
- 1.Bd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- B(c);OGATE::QAB(A)
- B(c);N_GUARD::QAR1(A),XB(c)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Tries
- Try
- B(D);
- Vars
- B(c);N_GUARD::QAR1(A),XB(c)
- S(a);N_GUARD::QAB1(A),XS(a)
- B(c);OGATE::QAB(A)
- S(a);N_GUARD::QAB1(A)
- Refutation
- S(a);XR(B)
- Try
- B(D);
- Vars
- B(c);N_GUARD::QAR1(A),XB(c)
- S(a);N_GUARD::QAB1(A),XS(a)
- B(c);OGATE::QAB(A)
- S(a);N_GUARD::QAB1(A)
- Refutation
- S(a);XR(B)
- Try
- B(D);
- Threat
- R1(B)
- Vars
- S(a);N_GUARD::QAB1(A),XS(a)
- S(a);N_GUARD::QAB1(A)
- Refutation
- S(a);XR(B)
- Try
- B(D);
- Threat
- R1(B)
- Vars
- B(c);N_GUARD::QAR1(A),XB(c)
- S(a);N_GUARD::QAB1(A),XS(a)
- B(c);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAB1(A)
- Refutation
- S(a);XR(B)
- Try
- B(D);
- Vars
- B(c);N_GUARD::QAR1(A),XB(c)
- S(a);N_GUARD::QAB1(A),XS(a)
- B(c);OGATE::QAB(A)
- S(a);N_GUARD::QAB1(A)
- Refutation
- S(a);XR(B)
- Try
- B(D);
- Vars
- B(c);N_GUARD::QAR1(A),XB(c)
- S(a);N_GUARD::QAB1(A),XS(a)
- B(c);OGATE::QAB(A)
- S(a);N_GUARD::QAB1(A)
- Refutation
- S(a);XR(B)
- Try
- Q(A);CHECK
- Vars
- B(c);P_SPINB(c)::QAB(A)
- Refutation
- K(b);S_FLIGHT,XR(B)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(c);::QAB1(A)
- Refutation
- S(a);XR(B)
- Try
- Q(A);CHECK
- Refutation
- K(b);S_FLIGHT,XR(B)
- Try
- Actual
- B(D);
- Threat
- QAR1(A)
- Vars
- B(c);OGATE,SBLOCK,XB(D)::QAB(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- S(a);N_GUARD::QAB1(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).