MESON Chess Problem Database
Problem Display
PID: 145352 (b4r2/6N1/B3Q3/1p4K1/1P1R4/q4k2/1PR3pn/3NBrn1 w - - 0 1)
van Dijk, Nils Gustav Gerard
The Problemist, 1996
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxb2
- 2.Rd3#
- 2.Qe3#
- 1...Qxb4
- 2.Rd3#
- 2.Qe3#
- 1...Qa1
- 2.Rc3#
- 2.Rd3#
- 2.Qb3#
- 2.Qe3#
- 1...Qa2
- 2.Rc3#
- 2.Rd3#
- 2.Qe3#
- 1...Qb3
- 2.Qxb3#
- 1...Qc3
- 2.Rxc3#
- 1...Qd3
- 2.Rxd3#
- 1...Qe3+
- 2.Qxe3#
- 1...Qa4
- 2.Rc3#
- 2.Rd3#
- 2.Qe3#
- 1...Qa5
- 2.Rc3#
- 2.Rd3#
- 2.Qb3#
- 2.Qe3#
- 1...Qxa6
- 2.Rc3#
- 2.Rd3#
- 2.Qb3#
- 2.Qe3#
- 1...Rf4
- 2.Rxf4#
- 1...Rf5+
- 2.Qxf5#
- 1...Rf6
- 2.Qxf6#
- 1...Rf7
- 2.Qxf7#
- 1...Rb8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Rc8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Rd8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Re8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Rg8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Rh8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Be4
- 2.Qxe4#
- 1...Bd5
- 2.Qxd5#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Bxb7#
- 1...Se2
- 2.Qxe2#
- 1...Sh3+
- 2.Qxh3#
- 1...Sg4
- 2.Qxg4#
- 1...Qxb2
- Tries
- 1.Sh5?
- 1...Qe3+
- 2.Qxe3#
- 1...Rf5+
- 2.Qxf5#
- 1...Sh3+
- 2.Qxh3#
- 1...Qxb2
- 2.Rd3#
- 2.Qe3#
- 1...Qxb4
- 2.Rd3#
- 2.Qe3#
- 1...Qxa6
- 2.Rc3#
- 2.Rd3#
- 2.Qb3#
- 2.Qe3#
- 1...Rxe1
- 2.Rf2#
- 1...Qa1
- 2.Rc3#
- 2.Rd3#
- 2.Qb3#
- 2.Qe3#
- 1...Qa2
- 2.Rc3#
- 2.Rd3#
- 2.Qe3#
- 1...Qb3
- 2.Qxb3#
- 1...Qc3
- 2.Rxc3#
- 1...Qd3
- 2.Rxd3#
- 1...Qa4
- 2.Rc3#
- 2.Rd3#
- 2.Qe3#
- 1...Qa5
- 2.Rc3#
- 2.Rd3#
- 2.Qb3#
- 2.Qe3#
- 1...Rf2
- 2.Rxf2#
- 1...Rf4
- 2.Rxf4#
- 1...Rf6
- 2.Qxf6#
- 1...Rf7
- 2.Qxf7#
- 1...Rb8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Rc8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Rd8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Re8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Rh8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Be4
- 2.Qxe4#
- 1...Bd5
- 2.Qxd5#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Bxb7#
- 1...Se2
- 2.Qxe2#
- 1...Sg4
- 2.Qxg4#
- 1...Rg8+!
- 1...Qe3+
- 1.Rf2+?
- 1...Kg3
- 2.Sh5#
- 1...Rxf2!
- 1...Kg3
- 1.Rg4?
- threat
- 2.Rg3#
- 1...Qe3+
- 2.Qxe3#
- 1...Rf5+
- 2.Qxf5#
- 1...Rxe1
- 2.Rf2#
- 1...Sxg4
- 2.Qxg4#
- 1...Rf2
- 2.Rxf2#
- 1...Se2
- 2.Qxe2#
- 1...Sh3+!
- threat
- 1.Qe5?
- threat
- 2.Qg3#
- 1...Qe3+
- 2.Qxe3#
- 1...Rf5+
- 2.Qxf5#
- 1...Rxe1
- 2.Rf2#
- 1...Rf2
- 2.Rxf2#
- 1...Rf4
- 2.Rxf4#
- 2.Qxf4#
- 1...Se2
- 2.Qxe2#
- 1...Sh3+!
- threat
- 1.bxa3?
- threat
- 2.Rc3#
- 2.Rd3#
- 2.Qb3#
- 2.Qe3#
- 1...Rf5+
- 2.Qxf5#
- 1...Sh3+
- 2.Qxh3#
- 1...Rc8
- 2.Rd3#
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qe3#
- 2.Qf6#
- 1...Rd8
- 2.Rc3#
- 2.Rf4#
- 2.Qb3#
- 2.Qf5#
- 2.Qf7#
- 2.Qe3#
- 2.Qf6#
- 1...Re8
- 2.Rc3#
- 2.Rd3#
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Be4
- 2.Qxe4#
- 1...Bd5
- 2.Rc3#
- 2.Rd3#
- 2.Qxd5#
- 2.Qe3#
- 1...Se2
- 2.Rd3#
- 2.Qxe2#
- 2.Qe3#
- 1...Sg4
- 2.Qxg4#
- 1...Rxe1!
- threat
- 1.Sh5?
- Keys
- 1.Bh4!
- 1...Qe3+
- 2.Qxe3#
- 1...Rf5+
- 2.Qxf5#
- 1...Sh3+
- 2.Qxh3#
- 1...Qxb2
- 2.Rd3#
- 2.Qe3#
- 1...Qxb4
- 2.Rd3#
- 2.Qe3#
- 1...Qxa6
- 2.Rc3#
- 2.Rd3#
- 2.Qb3#
- 2.Qe3#
- 1...Rxd1
- 2.Rf2#
- 1...Qa1
- 2.Rc3#
- 2.Rd3#
- 2.Qb3#
- 2.Qe3#
- 1...Qa2
- 2.Rc3#
- 2.Rd3#
- 2.Qe3#
- 1...Qb3
- 2.Qxb3#
- 1...Qc3
- 2.Rxc3#
- 1...Qd3
- 2.Rxd3#
- 1...Qa4
- 2.Rc3#
- 2.Rd3#
- 2.Qe3#
- 1...Qa5
- 2.Rc3#
- 2.Rd3#
- 2.Qb3#
- 2.Qe3#
- 1...Re1
- 2.Rf2#
- 1...Rf2
- 2.Rxf2#
- 1...Rf4
- 2.Rxf4#
- 1...Rf6
- 2.Qxf6#
- 1...Rf7
- 2.Qxf7#
- 1...Rb8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Rc8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Rd8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Re8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Rg8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Rh8
- 2.Rf4#
- 2.Qf5#
- 2.Qf7#
- 2.Qf6#
- 1...Be4
- 2.Qxe4#
- 1...Bd5
- 2.Qxd5#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Bxb7#
- 1...Se2
- 2.Qxe2#
- 1...Sg4
- 2.Qxg4#
- 1...Qe3+
- 1.Bh4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(e);N_GUARD::QAR(I),XQ(e)
- Q(e);N_GUARD::R(D),XQ(e)
- Q(e);N_GUARD::R(F),XQ(e)
- Q(e);CHECK,N_GUARD::QAR1(I),XQ(e)
- R(i);N_GUARD::R1(F),XR(i)
- R(i);CHECK,N_GUARD::QAR2(I),XR(i)
- R(i);N_GUARD::QAR(I),XR(i)
- B(h);N_GUARD::QAB1(I),XB(h)
- B(h);N_GUARD::QAB(I),XB(h)
- B(h);N_GUARD::B(H),XB(h)
- S(b);N_GUARD::QAB1(I),XS(b)
- S(b);CHECK,N_GUARD::QAR2(I),XS(b)
- S(d);N_GUARD::QAB1(I),XS(d)
- Tries
- Try
- S(J);
- Vars
- Q(e);CHECK,N_GUARD::QAR1(I),XQ(e)
- R(i);CHECK,N_GUARD::QAR2(I),XR(i)
- S(b);CHECK,N_GUARD::QAR2(I),XS(b)
- R(a);N_GUARD,XB(B)::R1(D)
- Q(e);N_GUARD::QAR(I),XQ(e)
- Q(e);N_GUARD::R(D),XQ(e)
- Q(e);N_GUARD::R(F),XQ(e)
- R(a);N_GUARD::R1(D),XR(a)
- R(i);N_GUARD::R1(F),XR(i)
- R(i);N_GUARD::QAR(I),XR(i)
- B(h);N_GUARD::QAB1(I),XB(h)
- B(h);N_GUARD::QAB(I),XB(h)
- B(h);N_GUARD::B(H),XB(h)
- S(b);N_GUARD::QAB1(I),XS(b)
- S(d);N_GUARD::QAB1(I),XS(d)
- Refutation
- R(i);CHECK
- Try
- R(D);CHECK
- Vars
- K(f);P-FLIGHT::S(J)
- Refutation
- R(a);XR(D)
- Try
- R(F);
- Threat
- R1(F)
- Vars
- Q(e);CHECK,N_GUARD::QAR1(I),XQ(e)
- R(i);CHECK,N_GUARD::QAR2(I),XR(i)
- R(a);N_GUARD,XB(B)::R1(D)
- S(d);OGATE,XR(F)::QAB1(I),XS(d)
- R(a);N_GUARD::R1(D),XR(a)
- S(b);N_GUARD::QAB1(I),XS(b)
- Refutation
- S(b);CHECK
- Try
- Q(I);
- Threat
- QAR1(I)
- Vars
- Q(e);CHECK,N_GUARD::QAR1(I),XQ(e)
- R(i);CHECK,N_GUARD::QAR2(I),XR(i)
- R(a);N_GUARD,XB(B)::R1(D)
- R(a);N_GUARD::R1(D),XR(a)
- S(b);N_GUARD::QAB1(I),XS(b)
- Refutation
- S(b);CHECK
- Try
- P(C);XQ(e)
- Threat
- DUALS(4)
- Vars
- R(i);CHECK,N_GUARD::QAR2(I),XR(i)
- S(b);CHECK,N_GUARD::QAR2(I),XS(b)
- B(h);N_GUARD::QAB1(I),XB(h)
- S(d);N_GUARD::QAB1(I),XS(d)
- Refutation
- R(a);XB(B)
- Try
- Actual
- B(B);
- Vars
- Q(e);CHECK,N_GUARD::QAR1(I),XQ(e)
- R(i);CHECK,N_GUARD::QAR2(I),XR(i)
- S(b);CHECK,N_GUARD::QAR2(I),XS(b)
- R(a);N_GUARD,XS(A)::R1(D)
- Q(e);N_GUARD::QAR(I),XQ(e)
- Q(e);N_GUARD::R(D),XQ(e)
- Q(e);N_GUARD::R(F),XQ(e)
- R(a);N_GUARD::R1(D)
- R(a);N_GUARD::R1(D),XR(a)
- R(i);N_GUARD::R1(F),XR(i)
- R(i);N_GUARD::QAR(I),XR(i)
- B(h);N_GUARD::QAB1(I),XB(h)
- B(h);N_GUARD::QAB(I),XB(h)
- B(h);N_GUARD::B(H),XB(h)
- S(b);N_GUARD::QAB1(I),XS(b)
- S(d);N_GUARD::QAB1(I),XS(d)
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).