MESON Chess Problem Database
Problem Display
PID: 85749 (8/8/1Q2p3/2B1K3/r1k5/8/2PP4/8 w - - 0 1)
Speckmann, Werner
Heissener Schachpost, 1979
#2
5 + 3
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Ra8
- 2.Qb4#
- 1...Ra1
- Tries
- 1.Ke4?
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Ra8
- 2.Qb4#
- 1...e5!
- 1...Ra1
- 1.Kxe6?
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Ra8
- 2.Qb4#
- 1...Ra6!
- 1...Ra1
- 1.Bg1?
- threat
- 2.Qc5#
- 2.Qb3#
- 1...Ra3
- 2.Qc5#
- 1...Rb4
- 2.Qc5#
- 2.Qc6#
- 1...Ra5+!
- threat
- 1.Bf2?
- threat
- 2.Qc5#
- 2.Qb3#
- 1...Ra3
- 2.Qc5#
- 1...Rb4
- 2.Qc5#
- 2.Qc6#
- 1...Ra5+!
- threat
- 1.Be3?
- threat
- 2.Qc5#
- 2.Qb3#
- 1...Ra3
- 2.Qc5#
- 1...Rb4
- 2.Qc5#
- 2.Qc6#
- 1...Ra5+!
- threat
- 1.Bb4?
- threat
- 2.Qc5#
- 2.d3#
- 1...Rxb4
- 2.Qc6#
- 1...Ra3
- 2.Qc5#
- 1...Ra5+!
- threat
- 1.Bd4?
- threat
- 2.Qc5#
- 2.Qb3#
- 2.d3#
- 1...Ra3
- 2.Qc5#
- 1...Rb4
- 2.Qc5#
- 2.Qc6#
- 2.d3#
- 1...Ra5+!
- threat
- 1.Bd6?
- threat
- 2.Qc5#
- 2.Qb3#
- 2.Qc6#
- 1...Ra3
- 2.Qc5#
- 2.Qb4#
- 2.Qc6#
- 1...Rb4
- 2.Qc5#
- 2.Qxb4#
- 2.Qc6#
- 1...Ra6
- 2.Qc5#
- 2.Qb3#
- 2.Qb4#
- 2.Qxa6#
- 1...Ra5+!
- threat
- 1.Be7?
- threat
- 2.Qc5#
- 2.Qb3#
- 2.Qc6#
- 1...Ra3
- 2.Qc5#
- 2.Qb4#
- 2.Qc6#
- 1...Rb4
- 2.Qc5#
- 2.Qxb4#
- 2.Qc6#
- 1...Ra6
- 2.Qc5#
- 2.Qb3#
- 2.Qb4#
- 2.Qxa6#
- 1...Ra5+!
- threat
- 1.Bf8?
- threat
- 2.Qc5#
- 2.Qb3#
- 2.Qc6#
- 1...Ra3
- 2.Qc5#
- 2.Qb4#
- 2.Qc6#
- 1...Rb4
- 2.Qc5#
- 2.Qxb4#
- 2.Qc6#
- 1...Ra6
- 2.Qc5#
- 2.Qb3#
- 2.Qb4#
- 2.Qxa6#
- 1...Ra5+!
- threat
- 1.Qa5?
- threat
- 2.d3#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Rxa5!
- threat
- 1.Qb1?
- 1...Rb4
- 2.Qxb4#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Ra8
- 2.Qb4#
- 1...Kxc5!
- 1...Rb4
- 1.Qb2?
- 1...Rb4
- 2.Qxb4#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Ra8
- 2.Qb4#
- 1...Kxc5!
- 1...Rb4
- 1.Qb7?
- 1...Ra6
- 2.Qb4#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Ra8
- 2.Qb4#
- 1...Kxc5!
- 1...Ra6
- 1.Qb8?
- 1...Ra6
- 2.Qb4#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Ra8
- 2.Qb4#
- 1...Kxc5!
- 1...Ra6
- 1.d4?
- threat
- 2.Qb3#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Kc3!
- threat
- 1.Ke4?
- Keys
- 1.Kd6!
- threat
- 2.Qb3#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra6
- 2.Qxa6#
- threat
- 1.Kd6!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- R(a);N_GUARD,P_PINB(C)::QAR1(E)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- Refutation
- P(c);
- Try
- K(D);P-FLIGHT,XP(c)
- Vars
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- Refutation
- R(a);P_PINQ(E)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(a);::QAR1(E)
- Refutation
- R(a);CHECK
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(a);::QAR1(E)
- Refutation
- R(a);CHECK
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(a);::QAR1(E)
- Refutation
- R(a);CHECK
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(a);SBLOCK,XB(C)::QAR2(E)
- R(a);::QAR1(E)
- Refutation
- R(a);CHECK
- Try
- B(C);
- Threat
- DUALS(3)
- Vars
- R(a);::QAR1(E)
- Refutation
- R(a);CHECK
- Try
- B(C);
- Threat
- DUALS(3)
- Refutation
- R(a);CHECK
- Try
- B(C);
- Threat
- DUALS(3)
- Refutation
- R(a);CHECK
- Try
- B(C);
- Threat
- DUALS(3)
- Refutation
- R(a);CHECK
- Try
- Q(E);
- Threat
- P(B)
- Vars
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- Refutation
- R(a);P_PINB(C),XQ(E)
- Try
- Q(E);
- Vars
- R(a);N_GUARD::QAR1(E),XR(a)
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD,P_PINB(C)::QAR1(E)
- Refutation
- K(b);P-FLIGHT,XB(C)
- Try
- Q(E);
- Vars
- R(a);N_GUARD::QAR1(E),XR(a)
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD,P_PINB(C)::QAR1(E)
- Refutation
- K(b);P-FLIGHT,XB(C)
- Try
- Q(E);
- Vars
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- R(a);N_GUARD,P_PINB(C)::QAR1(E)
- Refutation
- K(b);P-FLIGHT,XB(C)
- Try
- Q(E);
- Vars
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- R(a);N_GUARD,P_PINB(C)::QAR1(E)
- Refutation
- K(b);P-FLIGHT,XB(C)
- Try
- P(B);
- Threat
- QAB1(E)
- Vars
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- K(D);S_FLIGHT
- Threat
- QAB1(E)
- Vars
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- R(a);N_GUARD,P_PINQ(E)::QAB(E),XR(a)
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).