MESON Chess Problem Database
Problem Display
PID: 194129 (5Qnq/2p4p/4B1PP/K3kP1R/pR4p1/7b/3N1n2/5r2 w - - 0 1)
van Dijk, Johannes
De Maasbode, 1917
#2
9 + 10
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Qf6
- 2.Qc5#
- 1...Sd1
- 2.Re4#
- 1...Sh1
- 2.Re4#
- 1...Sd3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...g3
- 2.Sf3#
- 1...Qf6
- Tries
- 1.Bb3?
- threat
- 2.f6#
- 1...Sxh6
- 2.Qe7#
- 1...hxg6
- 2.fxg6#
- 1...Se4
- 2.Rxe4#
- 1...Se7
- 2.Qxe7#
- 1...Qf6
- 2.Qc5#
- 1...Sd1
- 2.Re4#
- 1...Sh1
- 2.Re4#
- 1...Sd3
- 2.Re4#
- 1...Sf6
- 2.Qe7#
- 1...g3
- 2.Sf3#
- 1...axb3!
- threat
- 1.Bxg8?
- threat
- 2.Qe7#
- 2.f6#
- 1...hxg6
- 2.Qe7#
- 2.fxg6#
- 1...Se4
- 2.Rxe4#
- 1...Qf6
- 2.Qc5#
- 1...Qg7
- 2.f6#
- 1...Sd1
- 2.Re4#
- 2.Qe7#
- 1...Sh1
- 2.Re4#
- 2.Qe7#
- 1...Sd3
- 2.Re4#
- 2.Qe7#
- 1...g3
- 2.Sf3#
- 2.Qe7#
- 1...Qxg8!
- threat
- 1.Qe7?
- threat
- 2.Bxg8#
- 2.f6#
- 1...Sxh6
- 2.Ba2#
- 2.Bb3#
- 2.Bf7#
- 2.Bg8#
- 1...hxg6
- 2.Bxg8#
- 2.fxg6#
- 1...Se4
- 2.Rxe4#
- 1...Qf6
- 2.Qc5#
- 2.Qxc7#
- 1...Qg7
- 2.f6#
- 1...Sd1
- 2.Bxg8#
- 2.Re4#
- 1...Sh1
- 2.Bxg8#
- 2.Re4#
- 1...Sd3
- 2.Bxg8#
- 2.Re4#
- 1...Sf6
- 2.Ba2#
- 2.Bb3#
- 2.Bf7#
- 2.Bg8#
- 2.Qxc7#
- 1...g3
- 2.Sf3#
- 2.Bxg8#
- 1...Sxe7!
- threat
- 1.Qd8?
- threat
- 2.Qd4#
- 1...Se4
- 2.Rxe4#
- 1...c5!
- threat
- 1.Bb3?
- Keys
- 1.Ba2!
- threat
- 2.f6#
- 1...Sxh6
- 2.Qe7#
- 1...hxg6
- 2.fxg6#
- 1...Se4
- 2.Rxe4#
- 1...Se7
- 2.Qxe7#
- 1...Qf6
- 2.Qc5#
- 1...Sd1
- 2.Re4#
- 1...Sh1
- 2.Re4#
- 1...Sd3
- 2.Re4#
- 1...Sf6
- 2.Qe7#
- 1...g3
- 2.Sf3#
- threat
- 1.Ba2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Q(j);SBLOCK::QAR2(I)
- S(b);N_GUARD::R1(B)
- S(b);N_GUARD::R1(B),XS(b)
- P(e);N_GUARD::S(A)
- Tries
- Try
- B(F);
- Threat
- R(E)+P(D)
- Vars
- S(i);N_GUARD,XP(H)::QAR2(I)
- P(h);OGATE,XP(G)::R(E)+P(D),XP(h)
- S(b);N_GUARD::R1(B),XS(b)
- S(i);N_GUARD::QAR2(I),XS(i)
- Q(j);SBLOCK::QAR2(I)
- S(b);N_GUARD::R1(B)
- S(i);N_GUARD::QAR2(I)
- P(e);N_GUARD::S(A)
- Refutation
- P(d);XB(F)
- Try
- B(F);XS(i)
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD::R1(B),XS(b)
- Q(j);SBLOCK::QAR2(I)
- Q(j);::R(E)+P(D)
- Refutation
- Q(j);XB(F)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD::R1(B),XS(b)
- Q(j);::R(E)+P(D)
- Refutation
- S(i);XQ(I)
- Try
- Q(I);
- Threat
- QAB1(I)
- Vars
- S(b);N_GUARD::R1(B),XS(b)
- Refutation
- P(g);
- Try
- Actual
- B(F);
- Threat
- R(E)+P(D)
- Vars
- S(i);N_GUARD,XP(H)::QAR2(I)
- P(h);OGATE,XP(G)::R(E)+P(D),XP(h)
- S(b);N_GUARD::R1(B),XS(b)
- S(i);N_GUARD::QAR2(I),XS(i)
- Q(j);SBLOCK::QAR2(I)
- S(b);N_GUARD::R1(B)
- S(i);N_GUARD::QAR2(I)
- P(e);N_GUARD::S(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).