MESON Chess Problem Database
Problem Display
PID: 234533 (4N3/8/8/4k3/2r2p1K/2P2Q1B/1B6/8 w - - 0 1)
Speckmann, Werner
Kristall, 1963
#2
6 + 3
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxc3
- 2.Bxc3#
- 1...Ra4
- 2.c4#
- 1...Rb4
- 2.cxb4#
- 1...Rd4
- 2.cxd4#
- 1...Re4
- 2.Qh5#
- 1...Rc5
- 2.c4#
- 1...Rc6
- 2.c4#
- 1...Rc7
- 2.c4#
- 1...Rc8
- 2.c4#
- 1...Rxc3
- Tries
- 1.Kg5?
- 1...Rxc3
- 2.Bxc3#
- 1...Ra4
- 2.c4#
- 1...Rb4
- 2.cxb4#
- 1...Rd4
- 2.cxd4#
- 1...Rc5
- 2.c4#
- 1...Rc6
- 2.c4#
- 1...Rc7
- 2.c4#
- 1...Rc8
- 2.c4#
- 1...Re4!
- 1...Rxc3
- 1.Kh5?
- 1...Rxc3
- 2.Bxc3#
- 1...Ra4
- 2.c4#
- 1...Rb4
- 2.cxb4#
- 1...Rd4
- 2.cxd4#
- 1...Rc5
- 2.c4#
- 1...Rc6
- 2.c4#
- 1...Rc7
- 2.c4#
- 1...Rc8
- 2.c4#
- 1...Re4!
- 1...Rxc3
- 1.Ba1?
- 1...Rxc3
- 2.Bxc3#
- 1...Re4
- 2.Qh5#
- 1...Rb4
- 2.cxb4#
- 1...Rd4
- 2.cxd4#
- 1...Rc5
- 2.c4#
- 1...Rc6
- 2.c4#
- 1...Rc7
- 2.c4#
- 1...Rc8
- 2.c4#
- 1...Ra4!
- 1...Rxc3
- 1.Bg4?
- 1...Rxc3
- 2.Bxc3#
- 1...Ra4
- 2.c4#
- 1...Rb4
- 2.cxb4#
- 1...Rd4
- 2.cxd4#
- 1...Rc5
- 2.c4#
- 1...Rc6
- 2.c4#
- 1...Rc7
- 2.c4#
- 1...Rc8
- 2.c4#
- 1...Re4!
- 1...Rxc3
- 1.Bc8?
- 1...Rxc3
- 2.Bxc3#
- 1...Re4
- 2.Qh5#
- 1...Ra4
- 2.c4#
- 1...Rb4
- 2.cxb4#
- 1...Rd4
- 2.cxd4#
- 1...Rc5
- 2.c4#
- 1...Rc6
- 2.c4#
- 1...Rc7
- 2.c4#
- 1...Rxc8!
- 1...Rxc3
- 1.Qe2+?
- 1...Re4
- 2.Qb5#
- 2.Qh5#
- 2.c4#
- 1...Kd5!
- 1...Re4
- 1.Qg2?
- 1...Rxc3
- 2.Bxc3#
- 1...Re4
- 2.Qg5#
- 1...Ra4
- 2.c4#
- 1...Rb4
- 2.cxb4#
- 1...Rd4
- 2.cxd4#
- 1...Rc5
- 2.c4#
- 1...Rc6
- 2.c4#
- 1...Rc7
- 2.c4#
- 1...Rc8
- 2.c4#
- 1...f3+!
- 1...Rxc3
- 1.Qd3?
- threat
- 2.Qf5#
- 1...Rxc3
- 2.Bxc3#
- 1...Re4
- 2.Qb5#
- 2.Qd6#
- 1...f3+!
- threat
- 1.Kg5?
- Keys
- 1.Bd7!
- 1...Rxc3
- 2.Bxc3#
- 1...Re4
- 2.Qh5#
- 1...Ra4
- 2.c4#
- 1...Rb4
- 2.cxb4#
- 1...Rd4
- 2.cxd4#
- 1...Rc5
- 2.c4#
- 1...Rc6
- 2.c4#
- 1...Rc7
- 2.c4#
- 1...Rc8
- 2.c4#
- 1...Rxc3
- 1.Bd7!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);OGATE,P_SPINR(a),XP(B)::B(A),XR(a)
- R(a);OGATE::B(A)+P(B)
- R(a);OGATE::B(A)+P(B),XR(a)
- R(a);OGATE::P(B),XR(a)
- R(a);SBLOCK::QAR(C)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- R(a);OGATE,P_SPINR(a),XP(B)::B(A),XR(a)
- R(a);OGATE::B(A)+P(B)
- R(a);OGATE::B(A)+P(B),XR(a)
- R(a);OGATE::P(B),XR(a)
- Refutation
- R(a);
- Try
- K(E);P-FLIGHT
- Vars
- R(a);OGATE,P_SPINR(a),XP(B)::B(A),XR(a)
- R(a);OGATE::B(A)+P(B)
- R(a);OGATE::B(A)+P(B),XR(a)
- R(a);OGATE::P(B),XR(a)
- Refutation
- R(a);
- Try
- B(A);
- Vars
- R(a);OGATE,P_SPINR(a),XP(B)::B(A),XR(a)
- R(a);SBLOCK::QAR(C)
- R(a);OGATE::B(A)+P(B),XR(a)
- R(a);OGATE::P(B),XR(a)
- R(a);OGATE::B(A)+P(B)
- Refutation
- R(a);
- Try
- B(D);
- Vars
- R(a);OGATE,P_SPINR(a),XP(B)::B(A),XR(a)
- R(a);OGATE::B(A)+P(B)
- R(a);OGATE::B(A)+P(B),XR(a)
- R(a);OGATE::P(B),XR(a)
- Refutation
- R(a);
- Try
- B(D);
- Vars
- R(a);OGATE,P_SPINR(a),XP(B)::B(A),XR(a)
- R(a);SBLOCK::QAR(C)
- R(a);OGATE::B(A)+P(B)
- R(a);OGATE::B(A)+P(B),XR(a)
- R(a);OGATE::P(B),XR(a)
- Refutation
- R(a);XB(D)
- Try
- Q(C);CHECK
- Refutation
- K(c);P-FLIGHT
- Try
- Q(C);
- Vars
- R(a);OGATE,P_SPINR(a),XP(B)::B(A),XR(a)
- R(a);SBLOCK::QAR2(C)
- R(a);OGATE::B(A)+P(B)
- R(a);OGATE::B(A)+P(B),XR(a)
- R(a);OGATE::P(B),XR(a)
- Refutation
- P(b);CHECK
- Try
- Q(C);
- Threat
- QAR1(C)
- Vars
- R(a);OGATE,P_SPINR(a),XP(B)::B(A),XR(a)
- Refutation
- P(b);CHECK
- Try
- Actual
- B(D);
- Vars
- R(a);OGATE,P_SPINR(a),XP(B)::B(A),XR(a)
- R(a);SBLOCK::QAR(C)
- R(a);OGATE::B(A)+P(B)
- R(a);OGATE::B(A)+P(B),XR(a)
- R(a);OGATE::P(B),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).