MESON Chess Problem Database
Problem Display
PID: 231148 (8/p1p5/rbp1P3/p1rp4/P2P1k2/Qb3NNB/6R1/K4RB1 w - - 0 1)
Kraemer, Adolf Herrmann Rudolf Ferdinand
Westfalia Solving Ty., 1927
#2
11 + 10
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rc1+
- 2.Qxc1#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rb5
- 2.Qc1#
- 2.Qf8#
- 1...Bd1
- 2.Be3#
- 2.Qe3#
- 1...Ba2
- 2.Be3#
- 2.Qe3#
- 1...Bc2
- 2.Be3#
- 2.Qc1#
- 2.Qe3#
- 1...Bxa4
- 2.Be3#
- 2.Qe3#
- 1...Bc4
- 2.Be3#
- 2.Qc1#
- 2.Qe3#
- 1...Rc1+
- Tries
- 1.Kb2?
- 1...Bxa4
- 2.Be3#
- 2.Qe3#
- 1...Rc1
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Bd1
- 2.Be3#
- 2.Qe3#
- 1...Ba2
- 2.Be3#
- 2.Qe3#
- 1...Bc2
- 2.Be3#
- 2.Qe3#
- 1...Bc4
- 2.Be3#
- 2.Qe3#
- 1...Rc2+!
- 1...Bxa4
- 1.Bf2?
- 1...Kxf3
- 2.Bg1#
- 1...Bxa4
- 2.Be3#
- 2.Qe3#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Bd1
- 2.Be3#
- 2.Qe3#
- 1...Ba2
- 2.Be3#
- 2.Qe3#
- 1...Bc2
- 2.Be3#
- 2.Qe3#
- 1...Bc4
- 2.Be3#
- 2.Qe3#
- 1...Rc1+!
- 1...Kxf3
- 1.Rc1?
- 1...Kxf3
- 2.Rf1#
- 1...Bxa4
- 2.Qe3#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Bd1
- 2.Qe3#
- 1...Ba2
- 2.Qe3#
- 1...Bc2
- 2.Qe3#
- 1...Bc4
- 2.Qe3#
- 1...Rxc1+!
- 1...Kxf3
- 1.Rd1?
- 1...Kxf3
- 2.Rf1#
- 1...Bxd1
- 2.Qe3#
- 1...Bxa4
- 2.Qe3#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Ba2
- 2.Qe3#
- 1...Bc2
- 2.Qe3#
- 1...Bc4
- 2.Qe3#
- 1...Rc1+!
- 1...Kxf3
- 1.Re1?
- 1...Kxf3
- 2.Rf1#
- 1...Bxa4
- 2.Sh5#
- 2.Qe3#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Bd1
- 2.Sh5#
- 2.Qe3#
- 1...Ba2
- 2.Sh5#
- 2.Qe3#
- 1...Bc2
- 2.Sh5#
- 2.Qe3#
- 1...Bc4
- 2.Sh5#
- 2.Qe3#
- 1...Rc1+!
- 1...Kxf3
- 1.Kb2?
- Keys
- 1.Rb1!
- 1...Kxf3
- 2.Rf1#
- 1...Bxa4
- 2.Qe3#
- 1...Rc1
- 2.Qf8#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Bd1
- 2.Qe3#
- 1...Ba2
- 2.Qe3#
- 1...Bc2
- 2.Qe3#
- 1...Bc4
- 2.Qe3#
- 1...Kxf3
- 1.Rb1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- R(d);CHECK,N_GUARD::QAB(E),XR(d)
- R(d);OGATE::QAR(E)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- R(d);OGATE::QAR(E)
- Refutation
- R(d);CHECK
- Try
- B(C);
- Vars
- K(b);OGATEB,P-FLIGHT,P_SPINB(a),XS(F)::R(B)+B(C)
- R(d);OGATE::QAR(E)
- Refutation
- R(d);CHECK
- Try
- R(B);
- Vars
- K(b);OGATEB,P-FLIGHT,P_SPINB(a),XS(F)::R(B)
- B(a);OGATE,XP(I)::QAB1(E)
- R(d);OGATE::QAR(E)
- B(a);OGATE::QAB1(E)
- Refutation
- R(d);CHECK,XR(B)
- Try
- R(B);
- Vars
- K(b);OGATEB,P-FLIGHT,P_SPINB(a),XS(F)::R(B)
- B(a);OGATE,XR(B)::QAB1(E)
- B(a);OGATE,XP(I)::QAB1(E)
- R(d);OGATE::QAR(E)
- B(a);OGATE::QAB1(E)
- Refutation
- R(d);CHECK
- Try
- R(B);
- Vars
- K(b);OGATEB,P-FLIGHT,P_SPINB(a),XS(F)::R(B)
- R(d);OGATE::QAR(E)
- Refutation
- R(d);CHECK
- Try
- Actual
- R(B);
- Vars
- K(b);OGATEB,P-FLIGHT,P_SPINB(a),XS(F)::R(B)
- B(a);OGATE,XP(I)::QAB1(E)
- R(d);OGATE,P_PINR(B)::QAR(E)
- R(d);OGATE::QAR(E)
- B(a);OGATE::QAB1(E)
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).