MESON Chess Problem Database
Problem Display
PID: 10329 (5n2/4p2B/2p1NN1R/2P1kP1R/1pQ3pB/1p4p1/1K1p2P1/3brrbn w - - 0 1)
van Dijk, Nils Gustav Gerard
4th Prize, Schakend Nederland, 1963
#2
11 + 14
| 3188 | Dutch Solving Championship | 2010 |
| 102 | Probleemblad | 2010 |
| 133 | The Problemist Supplement | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Re2
- 2.Sxg4#
- 1...Re3
- 2.Qd4#
- 1...Re4
- 2.Qxe4#
- 1...Rf2
- 2.Qd4#
- 1...Rf3
- 2.Sxg4#
- 1...Rf4
- 2.Qxf4#
- 1...Rxf5
- 2.Rxf5#
- 1...Bc2
- 2.Sxg4#
- 1...Be2
- 2.Qe4#
- 1...Bf3
- 2.Qf4#
- 1...Bf2
- 2.Qf4#
- 1...Bh2
- 2.Qd4#
- 1...Be3
- 2.Qe4#
- 1...Bd4+
- 2.Qxd4#
- 1...Bxc5
- 2.Qxc5#
- 1...Sf2
- 2.Bxg3#
- 2.Qd4#
- 2.Qf4#
- 1...Sxe6
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sxh7
- 2.Sd7#
- 1...exf6
- 2.Bxf6#
- 1...Re2
- Tries
- 1.Sg5?
- threat
- 2.Sf7#
- 1...Re4
- 2.Qxe4#
- 1...Bd4+!
- threat
- 1.Sd8?
- threat
- 2.Sxc6#
- 2.Sf7#
- 1...Bxc5
- 2.Sf7#
- 1...Re4
- 2.Qxe4#
- 1...Bf3
- 2.Sf7#
- 1...Bd4+!
- threat
- 1.Sxf8?
- threat
- 2.S6d7#
- 2.Sg6#
- 2.S8d7#
- 1...Bxc5
- 2.S6d7#
- 1...exf6
- 2.Sg6#
- 2.Sd7#
- 2.Bxf6#
- 1...Re4
- 2.Sg6#
- 2.Qxe4#
- 1...Bd4+!
- threat
- 1.Bxg3+?
- 1...Rf4
- 2.Bxf4#
- 2.Qxf4#
- 1...Sxg3!
- 1...Rf4
- 1.Bg6?
- 1...Bd4+
- 2.Qxd4#
- 1...Rxf5
- 2.Rxf5#
- 1...Bxc5
- 2.Qxc5#
- 1...Sxe6
- 2.Sd7#
- 1...Sxg6
- 2.Sd7#
- 1...Re2
- 2.Sxg4#
- 1...Re3
- 2.Qd4#
- 1...Re4
- 2.Qxe4#
- 1...Rf2
- 2.Qd4#
- 1...Rf3
- 2.Sxg4#
- 1...Rf4
- 2.Qxf4#
- 1...Bc2
- 2.Sxg4#
- 1...Be2
- 2.Qe4#
- 1...Bf3
- 2.Qf4#
- 1...Bf2
- 2.Qf4#
- 1...Bh2
- 2.Qd4#
- 1...Be3
- 2.Qe4#
- 1...Sf2
- 2.Qd4#
- 2.Qf4#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...exf6!
- 1...Bd4+
- 1.Rg5?
- 1...Bd4+
- 2.Qxd4#
- 1...Rxf5
- 2.Rxf5#
- 1...Bxc5
- 2.Qxc5#
- 1...Sxe6
- 2.Sd7#
- 1...Sxh7
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Re2
- 2.Sxg4#
- 1...Re3
- 2.Qd4#
- 1...Re4
- 2.Qxe4#
- 1...Rf2
- 2.Qd4#
- 1...Rf3
- 2.Sxg4#
- 1...Rf4
- 2.Qxf4#
- 1...Bc2
- 2.Sxg4#
- 1...Be2
- 2.Qe4#
- 1...Bf3
- 2.Qf4#
- 1...Bf2
- 2.Qf4#
- 1...Bh2
- 2.Qd4#
- 1...Be3
- 2.Qe4#
- 1...Sf2
- 2.Bxg3#
- 2.Qd4#
- 2.Qf4#
- 1...Sd7
- 2.Sxd7#
- 1...exf6!
- 1...Bd4+
- 1.Rg6?
- 1...Bd4+
- 2.Qxd4#
- 1...Bxc5
- 2.Qxc5#
- 1...Sxe6
- 2.Sd7#
- 1...Sxg6
- 2.Sd7#
- 1...Sxh7
- 2.Sd7#
- 1...exf6
- 2.Bxf6#
- 1...Re2
- 2.Sxg4#
- 1...Re3
- 2.Qd4#
- 1...Re4
- 2.Qxe4#
- 1...Rf2
- 2.Qd4#
- 1...Rf3
- 2.Sxg4#
- 1...Rf4
- 2.Qxf4#
- 1...Bc2
- 2.Sxg4#
- 1...Be2
- 2.Qe4#
- 1...Bf3
- 2.Qf4#
- 1...Bf2
- 2.Qf4#
- 1...Bh2
- 2.Qd4#
- 1...Be3
- 2.Qe4#
- 1...Sf2
- 2.Bxg3#
- 2.Qd4#
- 2.Qf4#
- 1...Sd7
- 2.Sxd7#
- 1...Rxf5!
- 1...Bd4+
- 1.Qc3+?
- 1...Bd4
- 2.Qxd4#
- 1...bxc3+!
- 1...Bd4
- 1.Sg5?
- Keys
- 1.Bg8!
- 1...Bd4+
- 2.Qxd4#
- 1...Rxf5
- 2.Qf4#
- 1...Bxc5
- 2.Qxc5#
- 1...Sxe6
- 2.Sd7#
- 1...exf6
- 2.Bxf6#
- 1...Re2
- 2.Sxg4#
- 1...Re3
- 2.Qd4#
- 1...Re4
- 2.Qxe4#
- 1...Rf2
- 2.Qd4#
- 1...Rf3
- 2.Sxg4#
- 1...Rf4
- 2.Qxf4#
- 1...Bc2
- 2.Sxg4#
- 1...Be2
- 2.Qe4#
- 1...Bf3
- 2.Qf4#
- 1...Bf2
- 2.Qf4#
- 1...Bh2
- 2.Qd4#
- 1...Be3
- 2.Qe4#
- 1...Sf2
- 2.Bxg3#
- 2.Qd4#
- 2.Qf4#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Bd4+
- 1.Bg8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(b);S_CUTB(a)::S(I),XP(j)
- R(b);S_CUTB(d)::QAB1(C)
- R(b);N_GUARD::QAR1(C),XR(b)
- R(c);S_CUTB(d)::QAB1(C)
- R(c);S_CUTB(a)::S(I),XP(j)
- R(c);N_GUARD::QAB1(C),XR(c)
- R(c);OGATE,P_SPINR(c),XP(F)::R1(G),XR(c)
- B(a);N_GUARD::S(I),XP(j)
- B(a);S_CUTR(b)::QAR1(C)
- B(a);S_CUTR(c)::QAB1(C)
- B(d);S_CUTR(c)::QAB1(C)
- B(d);N_GUARD::QAB1(C)
- B(d);S_CUTR(b)::QAR1(C)
- B(d);CHECK,N_GUARD::QAB1(C),XB(d)
- B(d);OGATE,XP(E)::QAR2(C),XB(d)
- S(n);N_GUARD,XS(H)::S(I)
- S(n);N_GUARD::S(I)
- S(n);N_GUARD::S(I),XS(n)
- S(n);N_GUARD,XB(K)::S(I)
- P(m);OGATE,XS(I)::B(D),XP(m)
- Tries
- Try
- S(H);
- Threat
- S(H)
- Vars
- R(b);N_GUARD::QAR1(C),XR(b)
- Refutation
- B(d);CHECK
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- B(d);XP(E)::S(H)
- R(b);N_GUARD::QAR1(C),XR(b)
- B(a);::S(H)
- Refutation
- B(d);CHECK
- Try
- S(H);XS(n)
- Threat
- DUALS(3)
- Vars
- B(d);XP(E)::S(I)
- Refutation
- B(d);CHECK
- Try
- B(D);CHECK,XP(h)
- Refutation
- S(e);XB(D)
- Try
- B(K);
- Vars
- B(d);CHECK,N_GUARD::QAB1(C),XB(d)
- R(c);OGATE,P_SPINR(c),XP(F)::R1(G),XR(c)
- B(d);OGATE,XP(E)::QAR2(C),XB(d)
- S(n);N_GUARD,XS(H)::S(I)
- S(n);N_GUARD,XB(K)::S(I)
- R(b);S_CUTB(a)::S(I),XP(j)
- R(b);S_CUTB(d)::QAB1(C)
- R(b);N_GUARD::QAR1(C),XR(b)
- R(c);S_CUTB(d)::QAB1(C)
- R(c);S_CUTB(a)::S(I),XP(j)
- R(c);N_GUARD::QAB1(C),XR(c)
- B(a);N_GUARD::S(I),XP(j)
- B(a);S_CUTR(b)::QAR1(C)
- B(a);S_CUTR(c)::QAB1(C)
- B(d);S_CUTR(c)::QAB1(C)
- B(d);N_GUARD::QAB1(C)
- B(d);S_CUTR(b)::QAR1(C)
- S(n);N_GUARD::S(I),XS(n)
- S(n);N_GUARD::S(I)
- Refutation
- P(m);XS(I)
- Try
- R(G);
- Vars
- B(d);CHECK,N_GUARD::QAB1(C),XB(d)
- R(c);OGATE,P_SPINR(c),XP(F)::R1(G),XR(c)
- B(d);OGATE,XP(E)::QAR2(C),XB(d)
- S(n);N_GUARD,XS(H)::S(I)
- S(n);N_GUARD,XB(K)::S(I)
- S(n);N_GUARD::S(I)
- R(b);S_CUTB(a)::S(I),XP(j)
- R(b);S_CUTB(d)::QAB1(C)
- R(b);N_GUARD::QAR1(C),XR(b)
- R(c);S_CUTB(d)::QAB1(C)
- R(c);S_CUTB(a)::S(I),XP(j)
- R(c);N_GUARD::QAB1(C),XR(c)
- B(a);N_GUARD::S(I),XP(j)
- B(a);S_CUTR(b)::QAR1(C)
- B(a);S_CUTR(c)::QAB1(C)
- B(d);S_CUTR(c)::QAB1(C)
- B(d);N_GUARD::QAB1(C)
- B(d);S_CUTR(b)::QAR1(C)
- S(n);N_GUARD::S(I),XS(n)
- Refutation
- P(m);XS(I)
- Try
- R(J);
- Vars
- B(d);CHECK,N_GUARD::QAB1(C),XB(d)
- B(d);OGATE,XP(E)::QAR2(C),XB(d)
- S(n);N_GUARD,XS(H)::S(I)
- S(n);N_GUARD,XR(J)::S(I)
- S(n);N_GUARD,XB(K)::S(I)
- P(m);OGATE,XS(I)::B(D),XP(m)
- R(b);S_CUTB(a)::S(I),XP(j)
- R(b);S_CUTB(d)::QAB1(C)
- R(b);N_GUARD::QAR1(C),XR(b)
- R(c);S_CUTB(d)::QAB1(C)
- R(c);S_CUTB(a)::S(I),XP(j)
- R(c);N_GUARD::QAB1(C),XR(c)
- B(a);N_GUARD::S(I),XP(j)
- B(a);S_CUTR(b)::QAR1(C)
- B(a);S_CUTR(c)::QAB1(C)
- B(d);S_CUTR(c)::QAB1(C)
- B(d);N_GUARD::QAB1(C)
- B(d);S_CUTR(b)::QAR1(C)
- S(n);N_GUARD::S(I),XS(n)
- Refutation
- R(c);P_SPINR(c),XP(F)
- Try
- Q(C);CHECK
- Vars
- B(d);N_GUARD,P_PINQ(C),P_SPINB(d)::QAB1(C),XB(d)
- Refutation
- P(i);CHECK,XQ(C)
- Try
- Actual
- B(K);
- Vars
- B(d);CHECK,N_GUARD::QAB1(C),XB(d)
- R(c);N_GUARD,P_SPINR(c),XP(F)::QAB1(C)
- B(d);OGATE,XP(E)::QAR2(C),XB(d)
- S(n);N_GUARD,XS(H)::S(I)
- P(m);OGATE,XS(I)::B(D),XP(m)
- R(b);S_CUTB(a)::S(I),XP(j)
- R(b);S_CUTB(d)::QAB1(C)
- R(b);N_GUARD::QAR1(C),XR(b)
- R(c);S_CUTB(d)::QAB1(C)
- R(c);S_CUTB(a)::S(I),XP(j)
- R(c);N_GUARD::QAB1(C),XR(c)
- B(a);N_GUARD::S(I),XP(j)
- B(a);S_CUTR(b)::QAR1(C)
- B(a);S_CUTR(c)::QAB1(C)
- B(d);S_CUTR(c)::QAB1(C)
- B(d);N_GUARD::QAB1(C)
- B(d);S_CUTR(b)::QAR1(C)
- S(n);N_GUARD::S(I)
- S(n);N_GUARD::S(I),XS(n)
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).