MESON Chess Problem Database
Problem Display
PID: 50740 (8/8/8/5n1N/4QR1p/6pk/7r/4K2R w K - 0 1)
Hannemann, Knud Harald
Nationaltidende, 1924
#2
5 + 5
| 249 | Schach-Echo | 1933 |
| 273 | Mat Plus | 1995 |
SOLUTION
- SOUND
- Sets
- 1...Rxh1+
- 2.Qxh1#
- 1...Se3
- 2.Rxh4#
- 1...Sd4
- 2.Rxh4#
- 1...Sd6
- 2.Rxh4#
- 1...Sh6
- 2.Rxh4#
- 1...Se7
- 2.Rxh4#
- 1...Sg7
- 2.Rxh4#
- 1...g2
- 2.Qxf5#
- 1...Rxh1+
- Tries
- 1.Kd1?
- 1...Rxh1+
- 2.Qxh1#
- 1...Sd4
- 2.Rxh4#
- 1...Sd6
- 2.Rxh4#
- 1...Sh6
- 2.Rxh4#
- 1...Se7
- 2.Rxh4#
- 1...Sg7
- 2.Rxh4#
- 1...g2
- 2.Qxf5#
- 1...Se3+!
- 1...Rxh1+
- 1.Kf1?
- threat
- 2.Qg2#
- 2.Qxf5#
- 1...Rxh1+
- 2.Qxh1#
- 1...g2+
- 2.Qxg2#
- 1...Sd4
- 2.Rxh4#
- 2.Qg2#
- 1...Sd6
- 2.Rxh4#
- 2.Qg2#
- 1...Sh6
- 2.Rxh4#
- 2.Qg2#
- 1...Se7
- 2.Rxh4#
- 2.Qg2#
- 1...Sg7
- 2.Rxh4#
- 2.Qg2#
- 1...Se3+!
- threat
- 1.Sf6?
- 1...Rxh1+
- 2.Qxh1#
- 1...Se3
- 2.Rxh4#
- 1...Sd4
- 2.Rxh4#
- 1...Sd6
- 2.Rxh4#
- 1...Sh6
- 2.Rxh4#
- 1...Se7
- 2.Rxh4#
- 1...Sg7
- 2.Rxh4#
- 1...g2!
- 1...Rxh1+
- 1.Sg7?
- 1...Rxh1+
- 2.Qxh1#
- 1...Sxg7
- 2.Rxh4#
- 1...Se3
- 2.Rxh4#
- 1...Sd4
- 2.Rxh4#
- 1...Sd6
- 2.Rxh4#
- 1...Sh6
- 2.Rxh4#
- 1...Se7
- 2.Rxh4#
- 1...g2!
- 1...Rxh1+
- 1.Rg4?
- 1...Se3
- 2.Rxh4#
- 1...Sd4
- 2.Rxh4#
- 1...Sd6
- 2.Rxh4#
- 1...Sh6
- 2.Rxh4#
- 1...Se7
- 2.Rxh4#
- 1...Sg7
- 2.Rxh4#
- 1...g2
- 2.Qxg2#
- 1...Rxh1+!
- 1...Se3
- 1.Rxf5?
- 1...g2
- 2.Rf3#
- 2.Qf3#
- 1...Rxh1+!
- 1...g2
- 1.Kd1?
- Keys
- 1.0-0!
- threat
- 2.Qxf5#
- 1...Rh1+
- 2.Qxh1#
- 1...Rg2+
- 2.Qxg2#
- 1...Se3
- 2.Rxh4#
- 1...Sd4
- 2.Rxh4#
- 1...Sd6
- 2.Rxh4#
- 1...Sh6
- 2.Rxh4#
- 1...Se7
- 2.Rxh4#
- 1...Sg7
- 2.Rxh4#
- threat
- 1.0-0!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(a);CHECK,N_SPINR(a),OGATE,XR(B)::QAR2(C),XR(a)
- S(e);N_GUARD::R1(D),XP(d)
- P(b);SBLOCK::QAB(C),XS(e)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- R(a);CHECK,N_SPINR(a),OGATE,XR(B)::QAR2(C),XR(a)
- S(e);N_GUARD::R1(D),XP(d)
- P(b);SBLOCK::QAB(C),XS(e)
- Refutation
- S(e);CHECK
- Try
- K(A);P-FLIGHT
- Threat
- DUALS(2)
- Vars
- R(a);CHECK,N_SPINR(a),OGATE,XR(B)::QAR2(C),XR(a)
- P(b);CHECK::QAB1(C),XP(b)
- Refutation
- S(e);CHECK
- Try
- S(E);
- Vars
- R(a);CHECK,N_SPINR(a),OGATE,XR(B)::QAR2(C),XR(a)
- S(e);N_GUARD::R1(D),XP(d)
- Refutation
- P(b);
- Try
- S(E);
- Vars
- R(a);CHECK,N_SPINR(a),OGATE,XR(B)::QAR2(C),XR(a)
- S(e);N_GUARD,XS(E)::R1(D),XP(d)
- S(e);N_GUARD::R1(D),XP(d)
- Refutation
- P(b);
- Try
- R(D);
- Vars
- S(e);N_GUARD::R1(D),XP(d)
- P(b);::QAB1(C),XP(b)
- Refutation
- R(a);CHECK,N_SPINR(a),XR(B)
- Try
- R(D);XS(e)
- Refutation
- R(a);CHECK,N_SPINR(a),XR(B)
- Try
- Actual
- K(A);0-0,N_PINR(a)
- Threat
- QAB(C),XS(e)
- Vars
- R(a);CHECK,OGATEB::QAR2(C),XR(a)
- R(a);CHECK,N_GUARD::QAB1(C),XR(a)
- S(e);N_GUARD::R1(D),XP(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).