MESON Chess Problem Database
Problem Display
PID: 203366 (b1Q5/6n1/3N4/3kBpR1/1P2R3/8/1n1K4/b7 w - - 0 1)
van Dijk, Johannes
De Standaard, 1924
#2
7 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sd1
- 2.Qc4#
- 1...Sd3
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sc4+
- 2.Qxc4#
- 1...Se6
- 2.Qxa8#
- 1...f4
- 2.Rd4#
- 1...Sd1
- Tries
- 1.Sb5?
- threat
- 2.Sc3#
- 1...Sc4+
- 2.Qxc4#
- 1...Sd1
- 2.Qc4#
- 1...Sd3
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Kxe4!
- threat
- 1.Bh2?
- threat
- 2.Qc5#
- 2.Qxa8#
- 1...Sc4+
- 2.Qxc4#
- 1...Bb7
- 2.Qxb7#
- 2.Qc5#
- 1...Sd3
- 2.Qc4#
- 2.Qxa8#
- 1...Sa4
- 2.Qc4#
- 2.Qxa8#
- 1...Se6
- 2.Rxf5#
- 2.Qxa8#
- 1...Bc6!
- threat
- 1.Bg3?
- threat
- 2.Qc5#
- 2.Qxa8#
- 1...Sc4+
- 2.Qxc4#
- 1...Bb7
- 2.Qxb7#
- 2.Qc5#
- 1...Sd3
- 2.Qc4#
- 2.Qxa8#
- 1...Sa4
- 2.Qc4#
- 2.Qxa8#
- 1...Se6
- 2.Rxf5#
- 2.Qxa8#
- 1...Bc6!
- threat
- 1.Bf4?
- threat
- 2.Qc5#
- 2.Qxa8#
- 1...Sc4+
- 2.Qxc4#
- 1...Bb7
- 2.Qxb7#
- 2.Qc5#
- 1...Sd3
- 2.Qc4#
- 2.Qxa8#
- 1...Sa4
- 2.Qc4#
- 2.Qxa8#
- 1...Se6
- 2.Rxf5#
- 2.Qxa8#
- 1...Bc6!
- threat
- 1.Rxf5?
- threat
- 2.Rd4#
- 1...Sc4+
- 2.Qxc4#
- 1...Sd1
- 2.Qc4#
- 1...Sd3
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Se6
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Qxa8#
- 1...Sxf5!
- threat
- 1.Rg6?
- threat
- 2.Qc5#
- 2.Qxa8#
- 1...Sc4+
- 2.Qxc4#
- 1...fxe4
- 2.Qc5#
- 1...Bb7
- 2.Qxb7#
- 2.Qc5#
- 1...Sd3
- 2.Qc4#
- 2.Qxa8#
- 1...Sa4
- 2.Qc4#
- 2.Qxa8#
- 1...Se6
- 2.Qxa8#
- 1...Bc6!
- threat
- 1.Qb7+?
- 1...Ke6
- 2.Rg6#
- 2.Qf7#
- 1...Bxb7!
- 1...Ke6
- 1.Qg8+?
- 1...Se6
- 2.Qxa8#
- 1...Kc6!
- 1...Se6
- 1.Sb5?
- Keys
- 1.Sf7!
- threat
- 2.Rd4#
- 1...Sc4+
- 2.Qxc4#
- 1...Kxe4
- 2.Qxa8#
- 1...fxe4
- 2.Bxg7#
- 1...Sd1
- 2.Qc4#
- 1...Sd3
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Se6
- 2.Qxa8#
- threat
- 1.Sf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- S(b);N_GUARD::QAB1(G)
- S(b);CHECK,N_GUARD::QAB1(G),XS(b)
- S(e);SBLOCK::QAB(G),XB(f)
- P(d);::R1(C)
- Tries
- Try
- S(F);
- Threat
- S(F)
- Vars
- S(b);CHECK,N_GUARD::QAB1(G),XS(b)
- S(b);N_GUARD::QAB1(G)
- Refutation
- K(c);S_FLIGHT,XR(C)
- Try
- B(D);P_PINP(d)
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,N_GUARD::QAB1(G),XS(b)
- Refutation
- B(f);
- Try
- B(D);P_PINP(d)
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,N_GUARD::QAB1(G),XS(b)
- Refutation
- B(f);
- Try
- B(D);P_PINP(d)
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,N_GUARD::QAB1(G),XS(b)
- Refutation
- B(f);
- Try
- R(E);XP(d)
- Threat
- R1(C)
- Vars
- S(b);CHECK,N_GUARD::QAB1(G),XS(b)
- S(b);N_GUARD::QAB1(G)
- Refutation
- S(e);XR(E)
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,N_GUARD::QAB1(G),XS(b)
- P(d);XR(C)::QAR1(G)
- S(e);::QAB(G),XB(f)
- Refutation
- B(f);
- Try
- Q(G);CHECK
- Refutation
- B(f);XQ(G)
- Try
- Q(G);CHECK
- Vars
- S(e);P_SPINS(e),SBLOCK::QAB(G),XB(f)
- Refutation
- K(c);S_FLIGHT
- Try
- Actual
- S(F);
- Threat
- R1(C)
- Vars
- S(b);CHECK,N_GUARD::QAB1(G),XS(b)
- K(c);S_FLIGHT,XR(C)::QAB(G),XB(f)
- P(d);OGATEB,SBLOCK,XR(C)::R(E)+B(D),XS(e)
- S(b);N_GUARD::QAB1(G)
- S(e);SBLOCK::QAB(G),XB(f)
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).