MESON Chess Problem Database
Problem Display
PID: 264054 (1r2q3/brNpp1P1/b1p3RB/Q3R3/3k2PK/4Np2/2Bn4/8 w - - 0 1)
van Dijk, Johannes
Tijdschrift vd KNSB, 1954
#2
10 + 11
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rb6
- 2.Qc5#
- 1...Bc4
- 2.Sf5#
- 1...Bb5
- 2.Qa1#
- 1...Bc5
- 2.Qxc5#
- 1...Bb6
- 2.Qa1#
- 1...Sb1
- 2.Re4#
- 1...Sf1
- 2.Re4#
- 1...Sb3
- 2.Re4#
- 1...Sc4
- 2.Sf5#
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...c5
- 2.Rd5#
- 1...d6
- 2.Se6#
- 1...Rb6
- Tries
- 1.Rf5?
- threat
- 2.Qe5#
- 1...Rb5
- 2.Qxd2#
- 1...Bb5
- 2.Qa1#
- 1...Bc5
- 2.Qxc5#
- 1...c5
- 2.Rd5#
- 1...d5
- 2.Se6#
- 1...d6
- 2.Se6#
- 1...e5
- 2.Rd6#
- 1...Sc4!
- threat
- 1.Rxc6?
- threat
- 2.Sf5#
- 2.Rd5#
- 2.Qc3#
- 2.Qd5#
- 1...dxc6
- 2.Se6#
- 1...Rb5
- 2.Qc3#
- 1...Bb5
- 2.Rd5#
- 2.Qc3#
- 2.Qa1#
- 1...Bc5
- 2.Rd5#
- 2.Qxc5#
- 1...d5
- 2.Rxd5#
- 2.Qc3#
- 2.Qxd5#
- 1...Rb3
- 2.Sf5#
- 2.Rd5#
- 2.Qd5#
- 1...Qg6
- 2.Rd5#
- 2.Qc3#
- 2.Qd5#
- 1...Qf7
- 2.Qc3#
- 1...Qf8
- 2.Rd5#
- 2.Qc3#
- 2.Qd5#
- 1...Qg8
- 2.Sf5#
- 2.Qc3#
- 1...Rb4
- 2.Sf5#
- 2.Rd5#
- 2.Qd5#
- 1...Bd3
- 2.Qc3#
- 2.Qd5#
- 1...Bc4
- 2.Sf5#
- 1...Sb1
- 2.Sf5#
- 2.Re4#
- 2.Rd5#
- 2.Qd5#
- 1...Sc4
- 2.Sf5#
- 2.Re4#
- 2.Rd5#
- 1...Se4
- 2.Sf5#
- 2.Rxe4#
- 2.Rd5#
- 2.Qd5#
- 1...e6
- 2.Rd6#
- 2.Qc3#
- 1...Qh5+!
- threat
- 1.Rf5?
- Keys
- 1.Rh5!
- threat
- 2.Qe5#
- 1...Rb5
- 2.Qxd2#
- 1...Bb5
- 2.Qa1#
- 1...Bc5
- 2.Qxc5#
- 1...Sc4
- 2.Sf5#
- 1...c5
- 2.Rd5#
- 1...d5
- 2.Se6#
- 1...d6
- 2.Se6#
- 1...e5
- 2.Rd6#
- threat
- 1.Rh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- R(g);S_CUTB(f)::QAB1(E)
- B(d);SBLOCK::S(B)
- B(d);S_CUTR(g)::QAB(E)
- B(f);N_GUARD::QAB1(E),XB(f)
- B(f);S_CUTR(g)::QAB(E)
- S(a);N_GUARD::R1(F)
- S(a);N_GUARD::R1(F),XS(a)
- P(e);N_GUARD::R1(F)
- P(h);N_GUARD::S(I)
- Tries
- Try
- R(F);
- Threat
- QAB1(E)
- Vars
- R(g);S_CUTB(d)::QAR2(E),XS(a)
- B(d);S_CUTR(g)::QAB(E)
- B(f);N_GUARD::QAB1(E),XB(f)
- P(e);N_GUARD::R1(F)
- P(h);N_GUARD::S(I)
- P(i);N_GUARD::R(G)
- Refutation
- S(a);
- Try
- R(G);XP(e)
- Threat
- DUALS(4)
- Vars
- P(h);N_GUARD,XR(G)::S(I)
- R(g);::QAB1(E)
- Q(k);::QAB1(E)
- B(d);::S(B)
- Refutation
- Q(k);CHECK
- Try
- Actual
- R(F);
- Threat
- QAB1(E)
- Vars
- R(g);S_CUTB(d)::QAR2(E),XS(a)
- B(d);S_CUTR(g)::QAB(E)
- B(f);N_GUARD::QAB1(E),XB(f)
- S(a);SBLOCK::S(B)
- P(e);N_GUARD::R1(F)
- P(h);N_GUARD::S(I)
- P(i);N_GUARD::R(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).