MESON Chess Problem Database
Problem Display
PID: 257501 (K2RB3/1Pr1P3/p3k1p1/P1B3Pb/Qp1P2p1/6N1/8/2n5 w - - 0 1)
Kraemer, Adolf Herrmann Rudolf Ferdinand
Wiener Schachzeitung, 1932
#2
11 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rxc5
- 2.Qd7#
- 1...Rc6
- 2.Qxc6#
- 1...Rxb7
- 2.Qc6#
- 1...Rd7
- 2.Qxd7#
- 1...Rxe7
- 2.Rd6#
- 2.Qc6#
- 1...Rc8+
- 2.bxc8Q#
- 2.bxc8B#
- 1...Sa2
- 2.Qb3#
- 1...Se2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...b3
- 2.Qc4#
- 1...Rxc5
- Tries
- 1.Ka7?
- 1...Rxc5
- 2.Qd7#
- 1...Rxe7
- 2.Rd6#
- 2.Qc6#
- 1...Rd7
- 2.Qxd7#
- 1...Rc6
- 2.Qxc6#
- 1...Rc8
- 2.Qd7#
- 2.bxc8Q#
- 2.bxc8B#
- 1...Sa2
- 2.Qb3#
- 1...Se2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...b3
- 2.Qc4#
- 1...Rxb7+!
- 1...Rxc5
- 1.Kb8?
- 1...Rc8+
- 2.bxc8Q#
- 2.bxc8B#
- 1...Rxc5
- 2.Qd7#
- 1...Rxe7
- 2.Rd6#
- 2.Qc6#
- 1...Rd7
- 2.Qxd7#
- 1...Rc6
- 2.Qxc6#
- 1...Sa2
- 2.Qb3#
- 1...Se2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...b3
- 2.Qc4#
- 1...Rxb7+!
- 1...Rc8+
- 1.Bxg6?
- 1...Rc8+
- 2.bxc8Q#
- 2.bxc8B#
- 1...Rxc5
- 2.Qd7#
- 2.e8Q#
- 2.e8R#
- 1...Rxb7
- 2.Qc6#
- 1...Rxe7
- 2.Rd6#
- 2.Qc6#
- 1...Rd7
- 2.Qxd7#
- 1...Rc6
- 2.Qxc6#
- 2.e8Q#
- 2.e8R#
- 1...Sa2
- 2.Qb3#
- 1...Se2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...b3
- 2.Qc4#
- 1...Bxg6!
- 1...Rc8+
- 1.Rc8?
- 1...Kd5
- 2.Bf7#
- 1...Rxc5
- 2.Qd7#
- 1...Rxb7
- 2.Qc6#
- 1...Rxe7
- 2.Qc6#
- 1...Rc6
- 2.Qxc6#
- 1...Rd7
- 2.Qxd7#
- 1...Sa2
- 2.Qb3#
- 1...Se2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...b3
- 2.Qc4#
- 1...Rxc8+!
- 1...Kd5
- 1.Qc2?
- threat
- 2.Qe4#
- 2.Qc4#
- 1...Rc8+
- 2.bxc8Q#
- 2.bxc8B#
- 1...Rd7
- 2.Qe4#
- 1...Sd3
- 2.Qb3#
- 2.Qc4#
- 1...Rxc5!
- threat
- 1.Qb5?
- threat
- 2.Qc4#
- 1...Rc8+
- 2.bxc8Q#
- 2.bxc8B#
- 1...Rxc5
- 2.Qd7#
- 1...Rd7
- 2.Qxd7#
- 1...axb5!
- threat
- 1.b8Q?
- 1...Rxc5
- 2.Qd7#
- 2.Qd6#
- 1...Rxe7
- 2.Rd6#
- 2.Qc6#
- 2.Qe5#
- 2.Qd6#
- 2.Qb6#
- 2.d5#
- 1...Rd7
- 2.Qxd7#
- 2.Qe5#
- 1...Rc6
- 2.Qxc6#
- 2.Qe5#
- 2.d5#
- 1...Rb7
- 2.Qc6#
- 2.Qe5#
- 2.Qd6#
- 2.d5#
- 1...Rc8
- 2.Qd7#
- 2.Qxc8#
- 2.d5#
- 1...Sa2
- 2.Qb3#
- 1...Se2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...b3
- 2.Qc4#
- 1...Ra7+!
- 1...Rxc5
- 1.b8S?
- 1...Rxc5
- 2.Qd7#
- 1...Rxe7
- 2.Rd6#
- 2.Qc6#
- 1...Rd7
- 2.Qxd7#
- 1...Rc6
- 2.Qxc6#
- 1...Rb7
- 2.Qc6#
- 1...Rc8
- 2.Qd7#
- 1...Sa2
- 2.Qb3#
- 1...Se2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...b3
- 2.Qc4#
- 1...Ra7+!
- 1...Rxc5
- 1.b8B?
- 1...Rxc5
- 2.Qd7#
- 1...Rxe7
- 2.Rd6#
- 2.Qc6#
- 2.d5#
- 1...Rd7
- 2.Qxd7#
- 1...Rc6
- 2.Qxc6#
- 2.d5#
- 1...Rb7
- 2.Qc6#
- 2.d5#
- 1...Rc8
- 2.Qd7#
- 2.d5#
- 1...Sa2
- 2.Qb3#
- 1...Se2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...b3
- 2.Qc4#
- 1...Ra7+!
- 1...Rxc5
- 1.b8R?
- 1...Rxc5
- 2.Qd7#
- 1...Rxe7
- 2.Rb6#
- 2.Rd6#
- 2.Qc6#
- 1...Rd7
- 2.Qxd7#
- 1...Rc6
- 2.Qxc6#
- 1...Rb7
- 2.Qc6#
- 1...Rc8
- 2.Qd7#
- 1...Sa2
- 2.Qb3#
- 1...Se2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...b3
- 2.Qc4#
- 1...Ra7+!
- 1...Rxc5
- 1.Ka7?
- Keys
- 1.Rb8!
- 1...Kd5
- 2.Bf7#
- 1...Rxc5
- 2.Qd7#
- 1...Rxb7
- 2.Qc6#
- 1...Rxe7
- 2.Qc6#
- 1...Rc6
- 2.Qxc6#
- 1...Rd7
- 2.Qxd7#
- 1...Rc8
- 2.Qd7#
- 1...Sa2
- 2.Qb3#
- 1...Se2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...b3
- 2.Qc4#
- 1...Kd5
- 1.Rb8!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(h);N_GUARD,XB(E)::QAB1(B)
- R(h);N_GUARD::QAR2(B),XR(h)
- R(h);N_GUARD,XP(G)::QAR2(B)
- R(h);N_GUARD::QAB1(B),XR(h)
- R(h);CHECK,OGATE::PXR(h)=Q
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- P(b);OGATE::QAB(B)
- Tries
- Try
- K(I);P-FLIGHT,P_SPINP(G)
- Vars
- R(h);N_GUARD,N_PINP(G),XB(E)::QAB1(B)
- R(h);N_GUARD::QAB1(B),XR(h)
- R(h);N_GUARD,N_PINP(G)::QAR2(B),XR(h)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- P(b);OGATE::QAB(B)
- Refutation
- R(h);CHECK,XP(G)
- Try
- K(I);P-FLIGHT
- Vars
- R(h);CHECK,OGATE::PXR(h)=Q
- R(h);N_GUARD,XB(E)::QAB1(B)
- R(h);N_GUARD::QAB1(B),XR(h)
- R(h);N_GUARD::QAR2(B),XR(h)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- P(b);OGATE::QAB(B)
- Refutation
- R(h);CHECK,XP(G)
- Try
- B(K);XP(g)
- Vars
- R(h);CHECK,OGATE::PXR(h)=Q
- R(h);N_GUARD,XP(G)::QAR2(B)
- R(h);N_GUARD::QAB1(B),XR(h)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- P(b);OGATE::QAB(B)
- Refutation
- B(d);XB(K)
- Try
- R(J);
- Vars
- K(f);N_GUARD,S_FLIGHT::B(K)
- R(h);N_GUARD,XB(E)::QAB1(B)
- R(h);N_GUARD,XP(G)::QAR2(B)
- R(h);N_GUARD,XP(H)::QAR2(B)
- R(h);N_GUARD::QAR2(B),XR(h)
- R(h);N_GUARD::QAB1(B),XR(h)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- P(b);OGATE::QAB(B)
- Refutation
- R(h);CHECK,XR(J)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(h);CHECK,OGATE::PXR(h)=Q
- R(h);::QAR2(B)
- Refutation
- R(h);XB(E)
- Try
- Q(B);
- Threat
- QAB(B)
- Vars
- R(h);CHECK,OGATE::PXR(h)=Q
- R(h);N_GUARD,XB(E)::QAB1(B)
- R(h);N_GUARD::QAB1(B),XR(h)
- Refutation
- P(e);XQ(B)
- Try
- P(G);
- Vars
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- P(b);OGATE::QAB(B)
- Refutation
- R(h);CHECK
- Try
- P(G);
- Vars
- R(h);N_GUARD,XB(E)::QAB1(B)
- R(h);N_GUARD::QAB1(B),XR(h)
- R(h);N_GUARD::QAR2(B),XR(h)
- R(h);N_GUARD::QAR2(B)
- R(h);N_GUARD,P_PINS(G)::QAB1(B)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- P(b);OGATE::QAB(B)
- Refutation
- R(h);CHECK
- Try
- P(G);
- Vars
- R(h);N_GUARD,XB(E)::QAB1(B)
- R(h);N_GUARD::QAB1(B),XR(h)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- P(b);OGATE::QAB(B)
- Refutation
- R(h);CHECK
- Try
- P(G);
- Vars
- R(h);N_GUARD,XB(E)::QAB1(B)
- R(h);N_GUARD::QAB1(B),XR(h)
- R(h);N_GUARD::QAR2(B),XR(h)
- R(h);N_GUARD::QAR2(B)
- R(h);N_GUARD,P_PINR(G)::QAB1(B)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- P(b);OGATE::QAB(B)
- Refutation
- R(h);CHECK
- Try
- Actual
- R(J);
- Vars
- K(f);N_GUARD,S_FLIGHT::B(K)
- R(h);N_GUARD,XB(E)::QAB1(B)
- R(h);N_GUARD,XP(G)::QAR2(B)
- R(h);N_GUARD,XP(H)::QAR2(B)
- R(h);N_GUARD::QAR2(B),XR(h)
- R(h);N_GUARD::QAB1(B),XR(h)
- R(h);N_GUARD,P_PINR(J)::QAB1(B)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- P(b);OGATE::QAB(B)
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).