MESON Chess Problem Database
Problem Display
PID: 156271 (1q3R2/pP6/2p4N/8/K3krpr/2Q3Pn/4N1p1/3R4 w - - 0 1)
van Dijk, Johannes
Comm., El Diluvio, 1932-1933
#2
8 + 9
| 1577 | Jaarboek | 1933 |
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Qd3#
- 1...Qe8
- 2.Rxe8#
- 1...Rf1
- 2.Qd4#
- 1...Rf2
- 2.Qd4#
- 1...Rf3
- 2.Qd4#
- 1...Qe5
- Tries
- 1.Sg1?
- threat
- 2.Qe1#
- 2.Qd4#
- 1...Qe5
- 2.Qe1#
- 2.Qd3#
- 1...Qd6
- 2.Qe1#
- 1...Qd8
- 2.Qe1#
- 1...Rf1
- 2.Qd4#
- 1...Rf2
- 2.Qd4#
- 1...Rf3
- 2.Qd4#
- 1...c5
- 2.Qe1#
- 1...Sxg1!
- threat
- 1.Sxg4?
- threat
- 2.Rd4#
- 2.Qd3#
- 2.Qe3#
- 2.Qxc6#
- 1...Qxb7
- 2.Rd4#
- 2.Qd3#
- 2.Qe3#
- 1...Qxf8
- 2.Qd3#
- 1...Rfxg4
- 2.Qd4#
- 1...Rxf8
- 2.Qd3#
- 1...Rf6
- 2.Qd3#
- 1...Rf7
- 2.Qd3#
- 1...g1Q
- 2.Qd3#
- 2.Qxc6#
- 1...g1B
- 2.Qd3#
- 2.Qxc6#
- 1...Qe5
- 2.Qd3#
- 2.Qe3#
- 1...Qd6
- 2.Qe3#
- 1...Qc7
- 2.Rd4#
- 2.Qd3#
- 2.Qe3#
- 1...Qc8
- 2.Rd4#
- 2.Qd3#
- 2.Qe3#
- 1...Qd8
- 2.Qe3#
- 1...Qe8
- 2.Rd4#
- 2.Qd3#
- 2.Qe3#
- 1...Rf3
- 2.Rd4#
- 2.Qb4#
- 2.Qd4#
- 2.Qxf3#
- 2.Qc4#
- 2.Qxc6#
- 1...Rf5
- 2.Rd4#
- 2.Qd3#
- 2.Qe3#
- 1...Rh5
- 2.Rd4#
- 2.Qd3#
- 2.Qe3#
- 1...Rh6
- 2.Rd4#
- 2.Qd3#
- 2.Qe3#
- 1...Sf2
- 2.Rd4#
- 2.Qe3#
- 2.Qxc6#
- 1...c5
- 2.Qd3#
- 2.Qe3#
- 1...Rhxg4!
- threat
- 1.Re8+?
- 1...Qe5
- 2.Rd4#
- 2.Rxe5#
- 2.Qd3#
- 1...Qxe8!
- 1...Qe5
- 1.gxf4?
- threat
- 2.Sg3#
- 2.Rd4#
- 2.Qd3#
- 1...Qxf8
- 2.Rd4#
- 2.Qd3#
- 1...Sxf4
- 2.Sg3#
- 1...g1Q
- 2.Qd3#
- 1...g1B
- 2.Sg3#
- 2.Qd3#
- 1...g1R
- 2.Rd4#
- 2.Qd3#
- 1...Qe5
- 2.Sg3#
- 2.Qd3#
- 1...Qd6
- 2.Sg3#
- 1...Qd8
- 2.Sg3#
- 1...Sf2
- 2.Sg3#
- 2.Rd4#
- 1...g3
- 2.Sxg3#
- 2.Rd4#
- 2.Qd3#
- 1...c5
- 2.Sg3#
- 2.Qd3#
- 1...Qxf4!
- threat
- 1.Sg1?
- Keys
- 1.Qe1!
- threat
- 2.Sg1#
- 1...Ke3+
- 2.Sd4#
- 1...Kf3+
- 2.Sd4#
- 1...Ke5+
- 2.Sxf4#
- 1...g1Q
- 2.Sxg1#
- 1...g1S
- 2.Sxg1#
- 1...g1B
- 2.Sxg1#
- 1...g1R
- 2.Sxg1#
- 1...Rf1
- 2.Sc3#
- 1...Rf2
- 2.Sc3#
- 1...Rf3
- 2.Sc3#
- 1...Sg1
- 2.Sxg1#
- threat
- 1.Qe1!
This is a version
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 8
- REMOVED MATES = 2
- Sets
- Q(i);SBLOCK::QAB1(C)
- Q(i);N_GUARD::R(H),XQ(i)
- R(d);::QAR1(C)
- Tries
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- Q(i);::QAR(C)
- R(d);::QAR1(C)
- P(g);::QAR(C)
- Refutation
- S(b);XS(B)
- Try
- S(F);XP(e)
- Threat
- DUALS(4)
- Vars
- Q(i);XR(H)::QAB1(C)
- R(d);XS(F)::QAR1(C)
- R(d);XR(H)::QAB1(C)
- R(d);::QAB1(C)
- Q(i);::QAR1(C)
- Refutation
- R(f);XS(F)
- Try
- R(H);CHECK
- Refutation
- Q(i);XR(H)
- Try
- P(D);XR(d)
- Threat
- DUALS(3)
- Vars
- S(b);XP(D)::S(B)
- P(a);::QAB1(C)
- Q(i);::S(B)
- Refutation
- Q(i);XP(D)
- Try
- Actual
- Q(C);
- Threat
- QAR(C)+S(B)
- Vars
- K(c);CHECK,P-FLIGHT::QAR(C)+S(B)
- K(c);CHECK,P_SPINR(d),S_FLIGHT::S(B)
- K(c);CHECK,P-FLIGHT::QAR(C)+S(B),XR(d)
- P(a);::QAR(C)+S(B),XQ(a)
- P(a);::QAR(C)+S(B),XS(a)
- P(a);::QAR(C)+S(B),XB(a)
- P(a);::QAR(C)+S(B),XR(a)
- R(d);::QAR(C)+S(B),DCHECK
- S(b);::QAR(C)+S(B),XS(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).