MESON Chess Problem Database
Problem Display
PID: 237265 (3q3b/B7/1r3p2/2Qp4/4kPPN/4p1K1/2P5/8 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Schweizerische Schachzeitung, 2014
#2
7 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qxe3#
- 2.Qd4#
- 1...Rb2
- 2.Qxe3#
- 2.Qd4#
- 1...Rb3
- 2.Qd4#
- 1...Rb4
- 2.Qxe3#
- 1...Rb5
- 2.Qxe3#
- 2.Qd4#
- 1...Ra6
- 2.Qxe3#
- 2.Qd4#
- 1...Rc6
- 2.Qxe3#
- 2.Qd4#
- 1...Rd6
- 2.Qxe3#
- 2.Qd4#
- 1...Re6
- 2.Qxe3#
- 2.Qd4#
- 1...Rb7
- 2.Qxe3#
- 2.Qd4#
- 1...Rb8
- 2.Qxe3#
- 2.Qd4#
- 1...d4
- 2.Qf5#
- 1...Rb1
- Tries
- 1.Sf3?
- threat
- 2.Qd4#
- 1...Rb4
- 2.Qxe3#
- 1...d4
- 2.Qf5#
- 1...f5!
- threat
- 1.Sf5?
- threat
- 2.Qxe3#
- 2.Qd4#
- 1...Rb3
- 2.Qd4#
- 1...Rb4
- 2.Qxe3#
- 1...e2
- 2.Qe3#
- 2.Qd4#
- 1...d4!
- threat
- 1.Bxb6?
- threat
- 2.Qxe3#
- 2.Qd4#
- 1...e2
- 2.Qe3#
- 2.Qd4#
- 1...d4
- 2.Qf5#
- 1...f5
- 2.Qxe3#
- 1...Qxb6!
- threat
- 1.Qxb6?
- threat
- 2.Qxe3#
- 2.Qd4#
- 2.Qe6#
- 1...d4
- 2.Qe6#
- 1...Qc7
- 2.Qxe3#
- 2.Qd4#
- 1...Qe7
- 2.Qxe3#
- 2.Qd4#
- 1...Qd6
- 2.Qxe3#
- 2.Qd4#
- 1...Qd7
- 2.Qxe3#
- 2.Qd4#
- 1...Qb8
- 2.Qxe3#
- 2.Qd4#
- 1...Qc8
- 2.Qxe3#
- 2.Qd4#
- 1...Qe8
- 2.Qxe3#
- 2.Qd4#
- 1...Qg8
- 2.Qxe3#
- 2.Qd4#
- 1...e2
- 2.Qe3#
- 2.Qd4#
- 2.Qe6#
- 1...f5
- 2.Qxe3#
- 1...Qxb6!
- threat
- 1.Qe7+?
- 1...Kd4
- 2.Qb4#
- 1...Re6
- 2.Qxe6#
- 1...Qxe7!
- 1...Kd4
- 1.Qc3?
- threat
- 2.Qd3#
- 1...Rb3
- 2.Qd4#
- 1...d4!
- threat
- 1.Qb5?
- threat
- 2.Qd3#
- 1...Kd4
- 2.Qb4#
- 1...d4
- 2.Qf5#
- 1...Rxb5!
- threat
- 1.Sf3?
- Keys
- 1.Sg2!
- threat
- 2.Qxe3#
- 1...Rb3
- 2.Qd4#
- 1...e2
- 2.Qe3#
- 1...d4
- 2.Qf5#
- threat
- 1.Sg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(d);::QAR1(F)
- R(d);::QAR1(F),XP(a)
- P(c);OGATE,SBLOCK::QAB1(F)
- Tries
- Try
- S(E);
- Threat
- QAR1(F)
- Vars
- R(d);::QAR1(F),XP(a)
- P(c);OGATE::QAB1(F)
- Refutation
- P(e);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(d);::QAR1(F)
- R(d);::QAR1(F),XP(a)
- Refutation
- P(c);
- Try
- B(G);XR(d)
- Threat
- DUALS(2)
- Vars
- P(c);OGATE::QAB1(F)
- P(e);::QAR1(F),XP(a)
- Refutation
- Q(f);XB(G)
- Try
- Q(F);XR(d)
- Threat
- DUALS(3)
- Vars
- P(c);::QAR2(F)
- P(e);::QAR1(F),XP(a)
- Refutation
- Q(f);XQ(F)
- Try
- Q(F);CHECK
- Vars
- K(b);P-FLIGHT,P_SPINR(d)::QAR2(F)
- R(d);N_GUARD,P_SPINR(d)::QAR2(F),XR(d)
- Refutation
- Q(f);XQ(F)
- Try
- Q(F);
- Threat
- QAB1(F)
- Vars
- R(d);::QAR1(F)
- Refutation
- P(c);
- Try
- Q(F);
- Threat
- QAB1(F)
- Vars
- K(b);P-FLIGHT,P_SPINR(d)::QAR2(F)
- P(c);OGATE,SBLOCK::QAB1(F)
- Refutation
- R(d);XQ(F)
- Try
- Actual
- S(E);
- Threat
- QAR1(F),XP(a)
- Vars
- R(d);::QAR1(F)
- P(a);::QAR1(F)
- P(c);OGATE,SBLOCK::QAB1(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).