MESON Chess Problem Database
Problem Display
PID: 46314 (7K/8/1p5p/1R1p1P1r/2Nk4/1r1PR2P/1P6/Q7 w - - 0 1)
Barth, Michael
1st HM., Portoroz Internet Ty., 2002
#2
9 + 6
| 23 | Die Schwalbe | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Rxb2
- 2.Qxb2#
- 1...Ra3
- 2.bxa3#
- 1...Rc3
- 2.bxc3#
- 1...Rb4
- 2.b3#
- 1...Rxb5
- 2.b4#
- 1...Rxb2
- Tries
- 1.Rf3?
- threat
- 2.Qg1#
- 1...Rxb2
- 2.Qxb2#
- 1...Rxd3
- 2.Rf4#
- 1...Rg5!
- threat
- 1.Rg3?
- threat
- 2.Qg1#
- 1...Rxb2
- 2.Qxb2#
- 1...Rxd3
- 2.Rg4#
- 1...Rxf5!
- threat
- 1.Re4+?
- 1...Kxd3
- 2.Qb1#
- 1...dxe4!
- 1...Kxd3
- 1.Rf3?
- Keys
- 1.Qg1!
- threat
- 2.Rf3#
- 2.Rg3#
- 2.Qg4#
- 2.Qg7#
- 1...Rxb2
- 2.Qg7#
- 1...Rxd3
- 2.Qg4#
- 1...Rxb5
- 2.Rf3#
- 2.Rg3#
- 1...Rxf5
- 2.Rf3#
- 1...dxc4
- 2.Rf3#
- 2.Rg3#
- 1...Rh4
- 2.Rf3#
- 2.Rg3#
- 2.Qg7#
- 1...Rg5
- 2.Rg3#
- threat
- 1.Qg1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- R(a);OGATE,P_SPINR(a),XP(B)::QAB(A),XR(a)
- R(a);OGATE::QAB(A)+P(B),XR(a)
- R(a);OGATE::P(B),XR(a)
- R(a);OGATE::QAB(A)+P(B)
- R(a);OGATE,XR(G)::QAB(A)+P(B)
- Tries
- Try
- R(D);
- Threat
- QAB(A)
- Vars
- R(a);OGATE,P_SPINR(a),XP(B)::QAB(A),XR(a)
- R(a);SBLOCK,XP(C)::R(D)
- Refutation
- R(d);
- Try
- R(D);
- Threat
- QAB(A)
- Vars
- R(a);OGATE,P_SPINR(a),XP(B)::QAB(A),XR(a)
- R(a);SBLOCK,XP(C)::R(D)
- Refutation
- R(d);XP(H)
- Try
- R(D);CHECK
- Vars
- K(b);P-FLIGHT,XP(C)::QAB(A)
- Refutation
- P(c);XR(D)
- Try
- Actual
- Q(A);
- Threat
- DUALS(4)
- Vars
- R(a);XP(B)::QAB(A)
- R(a);XP(C)::QAR(A)
- R(d);XP(H)::QAB(A)+R(D)
- R(d);::QAB(A)+R(D)
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).