MESON Chess Problem Database
Problem Display
PID: 37148 (2nRR3/4npK1/4N1B1/N1rPk3/5pQ1/1pP1r3/7b/B7 w - - 0 1)
van Dijk, Nils Gustav Gerard
2nd Prize, Israel Problemists' Association, 1955
#2
10 + 9
| 3105 | FIDE Album (1945-1955) | 1964 |
| 56 | The Problemist | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Re2
- 2.Qxe2#
- 1...Rexc3
- 2.Qe2#
- 1...Rg3
- 2.Qxf4#
- 1...Rcxc3
- 2.Sc4#
- 1...Rc4
- 2.Sxc4#
- 1...Rb5
- 2.Sc4#
- 1...Rxd5
- 2.Sc4#
- 1...Bg1
- 2.Qxf4#
- 1...Sxd5
- 2.Qf5#
- 1...Sf5+
- 2.Qxf5#
- 1...Sc6
- 2.Qf5#
- 1...Sg8
- 2.Qf5#
- 1...f3
- 2.Qd4#
- 1...fxe6
- 2.Qxe6#
- 1...Re2
- Tries
- 1.Sc6+?
- 1...Sxc6
- 2.Qf5#
- 1...Rxc6!
- 1...Sxc6
- 1.Sd4?
- threat
- 2.Qf5#
- 1...Rexc3
- 2.Sf3#
- 1...Rcxc3
- 2.Sdc6#
- 1...fxg6
- 2.Qe6#
- 1...f5
- 2.Qxf5#
- 1...Sd6!
- threat
- 1.Sxc5?
- threat
- 2.Sc4#
- 2.Sc6#
- 2.Qf5#
- 1...Rxc3
- 2.Sc6#
- 2.Bxc3#
- 1...fxg6
- 2.Sc4#
- 2.Sc6#
- 2.Qe6#
- 2.Qg5#
- 1...Re4
- 2.Sc6#
- 2.Sd3#
- 2.Qf5#
- 1...Sb6
- 2.Sc6#
- 2.Rxe7#
- 2.Qf5#
- 1...Sa7
- 2.Sc4#
- 2.Rxe7#
- 2.Qf5#
- 1...f5
- 2.Sc4#
- 2.Sc6#
- 2.Qxf5#
- 1...Sd6!
- threat
- 1.Sg5?
- threat
- 2.Sxf7#
- 2.Qf5#
- 1...Rexc3
- 2.Sf3#
- 1...Rcxc3
- 2.Sc6#
- 1...fxg6
- 2.Qe6#
- 1...f5
- 2.Qxf5#
- 1...f6
- 2.Sf7#
- 2.Qf5#
- 2.Qe6#
- 1...Sd6!
- threat
- 1.Sc7?
- threat
- 2.Qf5#
- 1...Rcxc3
- 2.Sc6#
- 1...fxg6
- 2.Qe6#
- 1...f5
- 2.Qxf5#
- 1...Sd6
- 2.Rxe7#
- 1...Rexc3!
- threat
- 1.Qh5+?
- 1...Sf5+
- 2.Qxf5#
- 1...f5!
- 1...Sf5+
- 1.Qg5+?
- 1...Sf5+
- 2.Qxf5#
- 1...f5!
- 1...Sf5+
- 1.c4+?
- 1...Rc3
- 2.Bxc3#
- 2.Qe2#
- 1...b2!
- 1...Rc3
- 1.Sc6+?
- Keys
- 1.Sxf4!
- threat
- 2.Qf5#
- 1...Rexc3
- 2.Sd3#
- 1...Rcxc3
- 2.Sc6#
- 1...fxg6
- 2.Sxg6#
- 1...f5
- 2.Qxf5#
- 1...Sd6
- 2.Rxe7#
- threat
- 1.Sxf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 12
- Sets
- R(c);OGATEB::QAR(C),XR(c)
- R(c);OGATEB,P_SPINR(c),XP(B)::QAR(C)
- R(c);S_CUTB(a)::QAB1(C),XP(d)
- R(e);N_GUARD,P_SPINR(e),XP(B)::S(D)
- R(e);N_GUARD::S(D),XR(e)
- R(e);N_GUARD::S(D)
- R(e);N_GUARD,XP(E)::S(D)
- B(a);N_GUARD::QAB1(C),XP(d)
- S(g);N_GUARD,XP(E)::QAR1(C)
- S(g);CHECK,N_GUARD::QAR1(C),XS(g)
- S(g);N_GUARD::QAR1(C)
- P(d);OGATE::QAB1(C)
- P(h);OGATE,XS(F)::QAR1(C),XP(h)
- Tries
- Try
- S(D);CHECK
- Vars
- S(g);XS(D)::QAR1(C)
- Refutation
- R(e);XS(D)
- Try
- S(F);P_PINS(g)
- Threat
- QAR1(C)
- Vars
- R(c);N_GUARD,XP(B)::S(F)
- R(e);N_GUARD,XP(B)::S(F)
- P(h);N_GUARD,XB(G)::QAR1(C)
- P(h);::QAR1(C),XP(h)
- Refutation
- S(i);
- Try
- S(F);P_PINS(g),XR(e)
- Threat
- DUALS(3)
- Refutation
- S(i);
- Try
- S(F);P_PINS(g)
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD,P_SPINR(c),XP(B)::S(F)
- R(e);N_GUARD,P_SPINR(e),XP(B)::S(D)
- P(h);N_GUARD,XB(G)::QAR1(C)
- P(h);::QAR1(C),XP(h)
- Refutation
- S(i);
- Try
- S(F);P_PINS(g)
- Threat
- QAR1(C)
- Vars
- R(e);N_GUARD,P_SPINR(e),XP(B)::S(D)
- P(h);N_GUARD,XB(G)::QAR1(C)
- P(h);::QAR1(C),XP(h)
- S(i);N_GUARD::R(J),XS(g)
- Refutation
- R(c);P_SPINR(c),XP(B)
- Try
- Q(C);CHECK
- Vars
- S(g);CHECK,N_GUARD,P_SPINS(g)::QAR1(C),XS(g)
- Refutation
- P(h);P_SPINP(h)
- Try
- Q(C);CHECK
- Vars
- S(g);CHECK,N_GUARD,P_SPINS(g)::QAR1(C),XS(g)
- Refutation
- P(h);P_SPINP(h)
- Try
- P(B);CHECK
- Refutation
- P(b);P_SPINP(b)
- Try
- Actual
- S(F);P_PINS(g),XP(d)
- Threat
- QAR1(C)
- Vars
- R(c);N_GUARD,P_SPINR(c),XP(B)::S(F)
- R(e);N_GUARD,P_SPINR(e),XP(B)::S(D)
- P(h);XB(G)::S(F),XP(h)
- P(h);::QAR1(C),XP(h)
- S(i);N_GUARD::R(J),XS(g)
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).