MESON Chess Problem Database
Problem Display
PID: 91728 (5k2/6R1/3N4/p2p2pN/B4n2/2p2Q2/2K5/8 w - - 0 1)
Niemeijer, Meindert
Probleemblad, 1944
#2
6 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...d4
- 2.Qa8#
- 1...g4
- 2.Qxf4#
- 1...d4
- Tries
- 1.Kb1?
- 1...d4
- 2.Qa8#
- 1...g4
- 2.Qxf4#
- 1...c2+!
- 1...d4
- 1.Kc1?
- 1...d4
- 2.Qa8#
- 1...g4
- 2.Qxf4#
- 1...c2!
- 1...d4
- 1.Kd1?
- 1...d4
- 2.Qa8#
- 1...g4
- 2.Qxf4#
- 1...c2+!
- 1...d4
- 1.Kb3?
- 1...d4
- 2.Qa8#
- 1...g4
- 2.Qxf4#
- 1...c2!
- 1...d4
- 1.Kxc3?
- 1...g4
- 2.Qxf4#
- 1...d4+!
- 1...g4
- 1.Sb7?
- 1...g4
- 2.Qxf4#
- 1...d4!
- 1...g4
- 1.Sc8?
- 1...g4
- 2.Qxf4#
- 1...d4!
- 1...g4
- 1.Se8?
- 1...g4
- 2.Qxf4#
- 1...d4!
- 1...g4
- 1.Bb3?
- 1...d4
- 2.Qa8#
- 1...g4
- 2.Qxf4#
- 1...a4!
- 1...d4
- 1.Bb5?
- 1...d4
- 2.Qa8#
- 1...g4
- 2.Qxf4#
- 1...a4!
- 1...d4
- 1.Bd7?
- 1...d4
- 2.Qa8#
- 1...g4
- 2.Qxf4#
- 1...a4!
- 1...d4
- 1.Qe4?
- threat
- 2.Qf5#
- 2.Qe7#
- 2.Qe8#
- 1...Sxh5
- 2.Qe7#
- 1...Se6
- 2.Qf5#
- 1...Sg6
- 2.Qf5#
- 2.Qe8#
- 1...dxe4!
- threat
- 1.Qg4?
- threat
- 2.Qf5#
- 2.Qc8#
- 1...Se6
- 2.Qf5#
- 1...Sxh5!
- threat
- 1.Qxd5?
- threat
- 2.Qf7#
- 2.Qa8#
- 2.Qg8#
- 2.Qf5#
- 1...Sxh5
- 2.Qf7#
- 2.Qg8#
- 1...Se6
- 2.Qf5#
- 1...Sxd5!
- threat
- 1.Qf1?
- 1...g4
- 2.Qxf4#
- 1...d4!
- 1...g4
- 1.Qf2?
- 1...g4
- 2.Qxf4#
- 1...d4!
- 1...g4
- 1.Qxc3?
- threat
- 2.Qf6#
- 2.Qc8#
- 1...d4
- 2.Qc8#
- 1...Se6
- 2.Qf6#
- 1...Sxh5!
- threat
- 1.Qe3?
- threat
- 2.Qe7#
- 2.Qe8#
- 1...Sxh5
- 2.Qe7#
- 1...Sg6
- 2.Qe8#
- 1...Se6!
- threat
- 1.Kb1?
- Keys
- 1.Sc4!
- 1...dxc4
- 2.Qa8#
- 1...d4
- 2.Qa8#
- 1...g4
- 2.Qxf4#
- 1...dxc4
- 1.Sc4!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- P(d);OGATE::QAR(B)
- P(e);N_GUARD::QAR(B),XS(b)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- P(d);OGATE::QAR(B)
- P(e);N_GUARD::QAR(B),XS(b)
- Refutation
- P(a);CHECK
- Try
- K(A);P-FLIGHT
- Vars
- P(d);OGATE::QAR(B)
- P(e);N_GUARD::QAR(B),XS(b)
- Refutation
- P(a);
- Try
- K(A);S_FLIGHT
- Vars
- P(d);OGATE::QAR(B)
- P(e);N_GUARD::QAR(B),XS(b)
- Refutation
- P(a);CHECK
- Try
- K(A);S_FLIGHT
- Vars
- P(d);OGATE::QAR(B)
- P(e);N_GUARD::QAR(B),XS(b)
- Refutation
- P(a);
- Try
- K(A);P-FLIGHT,XP(a)
- Vars
- P(e);N_GUARD::QAR(B),XS(b)
- Refutation
- P(d);CHECK
- Try
- S(E);
- Vars
- P(e);N_GUARD::QAR(B),XS(b)
- Refutation
- P(d);
- Try
- S(E);
- Vars
- P(e);N_GUARD::QAR(B),XS(b)
- Refutation
- P(d);
- Try
- S(E);
- Vars
- P(e);N_GUARD::QAR(B),XS(b)
- Refutation
- P(d);
- Try
- B(C);
- Vars
- P(d);OGATE::QAR(B)
- P(e);N_GUARD::QAR(B),XS(b)
- Refutation
- P(c);
- Try
- B(C);
- Vars
- P(d);OGATE::QAR(B)
- P(e);N_GUARD::QAR(B),XS(b)
- Refutation
- P(c);
- Try
- B(C);
- Vars
- P(d);OGATE::QAR(B)
- P(e);N_GUARD::QAR(B),XS(b)
- Refutation
- P(c);
- Try
- Q(B);N_PINS(b)
- Threat
- DUALS(3)
- Vars
- S(b);XS(D)::QAB1(B)
- S(b);::QAR(B)
- Refutation
- P(d);XQ(B)
- Try
- Q(B);N_PINS(b)
- Threat
- DUALS(2)
- Vars
- S(b);::QAR(B)
- Refutation
- S(b);XS(D)
- Try
- Q(B);N_PINS(b),XP(d)
- Threat
- DUALS(4)
- Vars
- S(b);::QAR(B)
- Refutation
- S(b);XQ(B)
- Try
- Q(B);
- Vars
- P(e);N_GUARD::QAR(B),XS(b)
- Refutation
- P(d);
- Try
- Q(B);
- Vars
- P(e);N_GUARD::QAR(B),XS(b)
- Refutation
- P(d);
- Try
- Q(B);N_PINS(b),XP(a)
- Threat
- DUALS(2)
- Vars
- P(d);::QAR(B)
- S(b);::QAR2(B)
- Refutation
- S(b);XS(D)
- Try
- Q(B);N_PINS(b)
- Threat
- DUALS(2)
- Vars
- S(b);XS(D)::QAB1(B)
- S(b);::QAR1(B)
- Refutation
- S(b);
- Try
- Actual
- S(E);
- Vars
- P(d);OGATE,XS(E)::QAR(B)
- P(d);OGATE::QAR(B)
- P(e);N_GUARD::QAR(B),XS(b)
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).