MESON Chess Problem Database
Problem Display
PID: 18527 (5N1b/2p4B/7r/q2R1P1p/5kNP/Br3P2/3RQ1PK/1b5n w - - 0 1)
van Dijk, Nils Gustav Gerard
2nd Place, Nederlandse Bond van Probleemvrienden TT, 1956
#2
12 + 9
| 3976 | FIDE Album (1956-1958) | 1961 |
SOLUTION
- SOUND
- Sets
- 1...Rb2
- 2.Qe3#
- 1...Rd3
- 2.Qe4#
- 1...Re3
- 2.Qxe3#
- 1...Rxf3
- 2.Qxf3#
- 1...Rb4
- 2.Qe3#
- 1...Rb5
- 2.Qe3#
- 1...Rbb6
- 2.Qe3#
- 1...Rb7
- 2.Qe3#
- 1...Rb8
- 2.Qe3#
- 1...Re6
- 2.Sxe6#
- 1...Rf6
- 2.Qe5#
- 1...Rg6
- 2.Sxg6#
- 1...Rxh7
- 2.Se6#
- 2.Sg6#
- 1...Ba2
- 2.Qe4#
- 1...Bd3
- 2.Qe3#
- 1...Be4
- 2.Qxe4#
- 1...Bc3
- 2.Qe3#
- 1...Be5
- 2.Qxe5#
- 1...Bf6
- 2.Se6#
- 1...Sf2
- 2.g3#
- 1...Rb2
- Tries
- 1.Sf2?
- threat
- 2.Sh3#
- 1...Rxf3
- 2.Qxf3#
- 1...Sxf2
- 2.g3#
- 1...Bxf5!
- threat
- 1.Sf6?
- threat
- 2.Se6#
- 2.Qe5#
- 1...Qxd5
- 2.Sxd5#
- 1...Rxf6
- 2.Qe5#
- 1...Bxf5
- 2.Qe5#
- 1...Bxf6
- 2.Se6#
- 1...Qc3
- 2.Se6#
- 1...Qb6
- 2.Qe5#
- 1...Qa6
- 2.Qe5#
- 1...Rb6
- 2.Qe5#
- 1...Be4
- 2.Se6#
- 2.Qxe4#
- 1...Re3!
- threat
- 1.Bc1?
- threat
- 2.R2d4#
- 1...Rd3
- 2.Qe4#
- 1...Re3
- 2.Qxe3#
- 1...Bd3
- 2.Qe3#
- 1...Be4
- 2.Qxe4#
- 1...Bd4
- 2.R2xd4#
- 1...Qxd2!
- threat
- 1.R2d3?
- threat
- 2.Qe3#
- 2.Qe4#
- 1...Qxd5
- 2.Bc1#
- 2.Qd2#
- 2.Qe3#
- 1...Rxd3
- 2.Qe4#
- 1...Bxd3
- 2.Qe3#
- 1...Qd2
- 2.Qxd2#
- 2.Qe4#
- 1...Qb4
- 2.Qe3#
- 1...Qb6
- 2.Qe4#
- 1...Qa4
- 2.Bc1#
- 2.Qd2#
- 2.Qe3#
- 1...Qc5
- 2.Qe4#
- 1...Qa7
- 2.Qe4#
- 1...Rb4
- 2.Bc1#
- 2.Qd2#
- 2.Qe3#
- 1...Re6
- 2.Sxe6#
- 1...Bd4
- 2.R5xd4#
- 2.Qe4#
- 1...Sf2
- 2.Qe3#
- 2.g3#
- 1...Sg3
- 2.Qe3#
- 1...Qe1!
- threat
- 1.R2d4+?
- 1...Be4
- 2.Rxe4#
- 2.Qxe4#
- 1...Bxd4!
- 1...Be4
- 1.R5d3?
- threat
- 2.Qe3#
- 2.Qe4#
- 1...Qxd2
- 2.Qxd2#
- 2.Qe4#
- 1...Qxf5
- 2.Qe3#
- 1...Rxd3
- 2.Qe4#
- 1...Rxh7
- 2.Qe4#
- 1...Bxd3
- 2.Qe3#
- 1...Rg6
- 2.Qe4#
- 1...Qb4
- 2.Qe3#
- 1...Qb6
- 2.Qe4#
- 1...Qa4
- 2.Qe3#
- 1...Qc5
- 2.Qe4#
- 1...Qd5
- 2.Qe3#
- 1...Qa7
- 2.Qe4#
- 1...Qa8
- 2.Qe3#
- 1...Rb4
- 2.Qe3#
- 1...Re6
- 2.Sxe6#
- 1...Bd4
- 2.Qe4#
- 1...Sf2
- 2.Qe3#
- 2.g3#
- 1...Sg3
- 2.Qe3#
- 1...Qe5!
- threat
- 1.R5d4+?
- 1...Be4
- 2.Rxe4#
- 2.Qxe4#
- 1...Bxd4!
- 1...Be4
- 1.Qc4+?
- 1...Be4
- 2.Qxe4#
- 1...Bd4!
- 1...Be4
- 1.Qe7?
- threat
- 2.Qg5#
- 1...Rf6
- 2.Qe5#
- 1...Rg6
- 2.Sxg6#
- 1...Bf6
- 2.Se6#
- 1...Rxf3!
- threat
- 1.f6?
- threat
- 2.Se6#
- 2.Qe5#
- 1...Rxf3
- 2.Qxf3#
- 1...Rxf6
- 2.Qe5#
- 1...Bxf6
- 2.Se6#
- 1...Qb6
- 2.Qe5#
- 1...Qc3
- 2.Se6#
- 1...Qa6
- 2.Qe5#
- 1...Re3
- 2.Qxe3#
- 1...Rb6
- 2.Qe3#
- 2.Qe5#
- 1...Be4
- 2.Se6#
- 2.Qxe4#
- 1...Bf5
- 2.Qe5#
- 1...Qxd5!
- threat
- 1.Sf2?
- Keys
- 1.Be7!
- threat
- 2.Bg5#
- 1...Rxf3
- 2.Qxf3#
- 1...Rf6
- 2.Qe5#
- 1...Rg6
- 2.Sxg6#
- 1...Bf6
- 2.Se6#
- threat
- 1.Be7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 15
- Sets
- R(c);N_GUARD::QAB1(B)
- R(c);S_CUTB(a)::QAR1(B)
- R(c);N_GUARD::QAB1(B),XR(c)
- R(c);OGATE,XP(F)::QAR1(B),XR(c)
- R(g);N_GUARD::S(L),XR(g)
- R(g);S_CUTB(i)::QAB1(B)
- B(a);N_GUARD::QAR1(B)
- B(a);S_CUTR(c)::QAB1(B)
- B(a);N_GUARD::QAR1(B),XB(a)
- B(i);S_CUTR(c)::QAB1(B)
- B(i);N_GUARD::QAB1(B),XB(i)
- B(i);S_CUTR(g)::S(L)
- S(b);N_GUARD::P(C)
- Tries
- Try
- S(G);
- Threat
- S(G)
- Vars
- R(c);OGATE,XP(F)::QAR1(B),XR(c)
- S(b);N_GUARD,XS(G)::P(C)
- Refutation
- B(a);XP(J)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- Q(e);XR(I)::S(G),XQ(e)
- R(g);XS(G)::QAB1(B)
- B(a);XP(J)::QAB1(B)
- B(i);XS(G)::S(L)
- Q(e);::S(L)
- Q(e);::QAB1(B)
- R(c);::QAB1(B)
- Refutation
- R(c);
- Try
- B(E);
- Threat
- B(E)+R(A),DCHECK
- Vars
- R(c);S_CUTB(a)::QAR1(B)
- R(c);N_GUARD::QAB1(B),XR(c)
- B(a);S_CUTR(c)::QAB1(B)
- B(a);N_GUARD::QAR1(B),XB(a)
- B(i);::B(E)+R(A),DCHECK,XB(i)
- Refutation
- Q(e);P_SPINQ(e),XR(A)
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- R(c);XR(A)::QAR1(B)
- B(a);XR(A)::QAB1(B)
- Q(e);::QAB1(B)
- Q(e);::QAR1(B)
- R(g);N_GUARD::S(L),XR(g)
- S(b);::QAB1(B)
- Refutation
- Q(e);
- Try
- R(A);CHECK
- Refutation
- B(i);XR(A)
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- Q(e);XP(J)::QAB1(B)
- R(c);XR(I)::QAR1(B)
- R(g);XB(K)::QAR1(B)
- B(a);XR(I)::QAB1(B)
- R(g);::QAR1(B)
- Q(e);::QAB1(B)
- Q(e);::QAR1(B)
- R(c);::QAB1(B)
- R(g);N_GUARD::S(L),XR(g)
- B(i);::QAR1(B)
- S(b);::QAB1(B)
- Refutation
- Q(e);
- Try
- R(I);CHECK
- Refutation
- B(i);XR(I)
- Try
- Q(B);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::QAR1(B),XB(a)
- Refutation
- B(i);P_SPINB(i)
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- R(g);S_CUTB(i)::QAB1(B)
- R(g);N_GUARD::S(L),XR(g)
- B(i);S_CUTR(g)::S(L)
- Refutation
- R(c);XP(F)
- Try
- P(J);
- Threat
- DUALS(2)
- Vars
- R(c);OGATE,XP(F)::QAR1(B),XR(c)
- R(g);XP(J)::QAB1(B)
- B(i);XP(J)::S(L)
- Q(e);::QAB1(B)
- Q(e);::S(L)
- R(c);N_GUARD::QAB1(B),XR(c)
- B(a);::QAB1(B)
- Refutation
- Q(e);XR(I)
- Try
- Actual
- B(E);
- Threat
- B(E)
- Vars
- R(c);OGATE,XP(F)::QAR1(B),XR(c)
- R(g);S_CUTB(i)::QAB1(B)
- R(g);N_GUARD::S(L),XR(g)
- B(i);S_CUTR(g)::S(L)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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