MESON Chess Problem Database
Problem Display
PID: 17155 (8/8/1K6/1p1N4/kp6/q2n4/R2Q4/8 w - - 0 1)
Brunner, Erich Anselm
Basler Nachrichten, 1925
#2
4 + 5
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Kb3
- 2.Qc2#
- 1...Qxa2
- 2.Qxa2#
- 1...Sc1
- 2.Qxb4#
- 1...Se1
- 2.Qxb4#
- 1...Sb2
- 2.Qxb4#
- 1...Sf2
- 2.Qxb4#
- 1...Sf4
- 2.Qxb4#
- 1...Sc5
- 2.Qxb4#
- 1...Se5
- 2.Qxb4#
- 1...b3
- 2.Qa5#
- 1...Kb3
- Tries
- 1.Kc6?
- 1...Kb3
- 2.Qc2#
- 1...Ka5
- 2.Rxa3#
- 1...Qxa2
- 2.Qxa2#
- 1...Sc1
- 2.Qxb4#
- 1...Se1
- 2.Qxb4#
- 1...Sb2
- 2.Qxb4#
- 1...Sf2
- 2.Qxb4#
- 1...Sf4
- 2.Qxb4#
- 1...Sc5
- 2.Qxb4#
- 1...b3
- 2.Sb6#
- 1...Se5+!
- 1...Kb3
- 1.Ka7?
- 1...Ka5
- 2.Rxa3#
- 1...Qxa2
- 2.Qxa2#
- 1...Sc1
- 2.Qxb4#
- 1...Se1
- 2.Qxb4#
- 1...Sb2
- 2.Qxb4#
- 1...Sf2
- 2.Qxb4#
- 1...Sf4
- 2.Qxb4#
- 1...Sc5
- 2.Qxb4#
- 1...Se5
- 2.Qxb4#
- 1...b3
- 2.Sb6#
- 1...Kb3+!
- 1...Ka5
- 1.Kb7?
- 1...Kb3
- 2.Qc2#
- 1...Ka5
- 2.Rxa3#
- 1...Qxa2
- 2.Qxa2#
- 1...Sc1
- 2.Qxb4#
- 1...Se1
- 2.Qxb4#
- 1...Sb2
- 2.Qxb4#
- 1...Sf2
- 2.Qxb4#
- 1...Sf4
- 2.Qxb4#
- 1...Se5
- 2.Qxb4#
- 1...b3
- 2.Sb6#
- 1...Sc5+!
- 1...Kb3
- 1.Rxa3+?
- 1...bxa3
- 2.Qd1#
- 2.Qc2#
- 1...Kxa3!
- 1...bxa3
- 1.Qb2?
- 1...Qxa2
- 2.Qxa2#
- 1...Sc1
- 2.Qxb4#
- 1...Se1
- 2.Qxb4#
- 1...Sf2
- 2.Qxb4#
- 1...Sf4
- 2.Qxb4#
- 1...Sc5
- 2.Qxb4#
- 1...Se5
- 2.Qxb4#
- 1...b3
- 2.Rxa3#
- 2.Qxa3#
- 1...Sxb2!
- 1...Qxa2
- 1.Qxd3?
- 1...b3
- 2.Qxb5#
- 1...Qxa2!
- 1...b3
- 1.Kc6?
- Keys
- 1.Kc7!
- 1...Kb3
- 2.Qc2#
- 1...Ka5
- 2.Rxa3#
- 1...Qxa2
- 2.Qxa2#
- 1...Sc1
- 2.Qxb4#
- 1...Se1
- 2.Qxb4#
- 1...Sb2
- 2.Qxb4#
- 1...Sf2
- 2.Qxb4#
- 1...Sf4
- 2.Qxb4#
- 1...Sc5
- 2.Qxb4#
- 1...Se5
- 2.Qxb4#
- 1...b3
- 2.Sb6#
- 1...Kb3
- 1.Kc7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(c);N_SPINQ(a),S_FLIGHT::QAB1(B)
- Q(a);N_SPINQ(a),OGATE,XR(A)::QAR2(B),XQ(a)
- S(b);N_GUARD::QAR1(B),XP(d)
- P(d);OGATE,SBLOCK::QAR1(B)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- K(c);N_SPINQ(a),S_FLIGHT::QAB1(B)
- K(c);P-FLIGHT,P_SPINP(d)::R(A),XQ(a)
- Q(a);N_SPINQ(a),OGATE,XR(A)::QAR2(B),XQ(a)
- S(b);N_GUARD::QAR1(B),XP(d)
- P(d);SBLOCK::S(C)
- Refutation
- S(b);CHECK
- Try
- K(D);S_FLIGHT
- Vars
- K(c);P-FLIGHT,P_SPINP(d)::R(A),XQ(a)
- Q(a);N_SPINQ(a),OGATE,XR(A)::QAR2(B),XQ(a)
- S(b);N_GUARD::QAR1(B),XP(d)
- P(d);SBLOCK::S(C)
- Refutation
- K(c);CHECK,N_SPINQ(a),S_FLIGHT
- Try
- K(D);P-FLIGHT
- Vars
- K(c);N_SPINQ(a),S_FLIGHT::QAB1(B)
- K(c);P-FLIGHT,P_SPINP(d)::R(A),XQ(a)
- Q(a);N_SPINQ(a),OGATE,XR(A)::QAR2(B),XQ(a)
- S(b);N_GUARD::QAR1(B),XP(d)
- P(d);SBLOCK::S(C)
- Refutation
- S(b);CHECK
- Try
- R(A);CHECK,XQ(a)
- Refutation
- K(c);P-FLIGHT,XR(A)
- Try
- Q(B);
- Vars
- Q(a);N_SPINQ(a),OGATE,XR(A)::QAR2(B),XQ(a)
- S(b);N_GUARD::QAR1(B),XP(d)
- Refutation
- S(b);XQ(B)
- Try
- Q(B);XS(b)
- Vars
- P(d);::QAB1(B),XP(e)
- Refutation
- Q(a);N_SPINQ(a),XR(A)
- Try
- Actual
- K(D);S_FLIGHT
- Vars
- K(c);N_SPINQ(a),S_FLIGHT::QAB1(B)
- K(c);P-FLIGHT,P_SPINP(d)::R(A),XQ(a)
- Q(a);N_SPINQ(a),OGATE,XR(A)::QAR2(B),XQ(a)
- S(b);N_GUARD::QAR1(B),XP(d)
- P(d);SBLOCK::S(C)
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).