MESON Chess Problem Database
Problem Display
PID: 92253 (1K2RN1n/2Pr1p2/5k2/3B1N2/nQb1P3/3p4/3B4/8 w - - 0 1)
Kraemer, Adolf Herrmann Rudolf Ferdinand
Deutsche Schachbund, 1929
#2
9 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxd5
- 2.Qe7#
- 1...Rd6
- 2.Qxd6#
- 1...Rxc7
- 2.Qd6#
- 1...Re7
- 2.Qxe7#
- 1...Rd8+
- 2.cxd8Q#
- 2.cxd8B#
- 1...Ba2
- 2.Qd4#
- 1...Bb3
- 2.Qd4#
- 1...Bb5
- 2.Qd4#
- 1...Bxd5
- 2.Qd4#
- 1...Ba6
- 2.Qd4#
- 1...Sb2
- 2.Qc3#
- 2.Qxb2#
- 1...Sc3
- 2.Qxc3#
- 1...Sc5
- 2.Qc3#
- 2.Qb2#
- 1...Sb6
- 2.Qc3#
- 2.Qb2#
- 1...Sg6
- 2.Sxd7#
- 2.Sh7#
- 1...Rxd5
- Tries
- 1.Ka7?
- 1...Rxd5
- 2.Qe7#
- 1...Bxd5
- 2.Qd4#
- 1...Re7
- 2.Qxe7#
- 1...Rd6
- 2.Qxd6#
- 1...Rd8
- 2.Qe7#
- 2.cxd8Q#
- 2.cxd8B#
- 1...Ba2
- 2.Qd4#
- 1...Bb3
- 2.Qd4#
- 1...Bb5
- 2.Qd4#
- 1...Ba6
- 2.Qd4#
- 1...Sb2
- 2.Qc3#
- 2.Qxb2#
- 1...Sc3
- 2.Qxc3#
- 1...Sc5
- 2.Qc3#
- 2.Qb2#
- 1...Sb6
- 2.Qc3#
- 2.Qb2#
- 1...Sg6
- 2.Sxd7#
- 2.Sh7#
- 1...Rxc7+!
- 1...Rxd5
- 1.Bc1?
- 1...Rd8+
- 2.cxd8Q#
- 2.cxd8B#
- 1...Rxd5
- 2.Qe7#
- 1...Rxc7
- 2.Qd6#
- 1...Bxd5
- 2.Qd4#
- 1...Re7
- 2.Qxe7#
- 1...Rd6
- 2.Qxd6#
- 1...Ba2
- 2.Qd4#
- 1...Bb3
- 2.Qd4#
- 1...Bb5
- 2.Qd4#
- 1...Ba6
- 2.Qd4#
- 1...Sb2
- 2.Qc3#
- 2.Qxb2#
- 1...Sc3
- 2.Qxc3#
- 1...Sc5
- 2.Qc3#
- 2.Qb2#
- 1...Sb6
- 2.Qc3#
- 2.Qb2#
- 1...Sg6
- 2.Sxd7#
- 2.Sh7#
- 1...d2!
- 1...Rd8+
- 1.Be1?
- threat
- 2.Bh4#
- 1...Rd8+
- 2.cxd8Q#
- 2.cxd8B#
- 1...Re7
- 2.Qxe7#
- 1...Sg6
- 2.Sh7#
- 1...Kg5!
- threat
- 1.Be3?
- 1...Rd8+
- 2.cxd8Q#
- 2.cxd8B#
- 1...Rxd5
- 2.Qe7#
- 1...Rxc7
- 2.Qd6#
- 1...Bxd5
- 2.Qd4#
- 1...Re7
- 2.Qxe7#
- 1...Rd6
- 2.Qxd6#
- 1...Ba2
- 2.Qd4#
- 1...Bb3
- 2.Qd4#
- 1...Bb5
- 2.Qd4#
- 1...Ba6
- 2.Qd4#
- 1...Sb2
- 2.Qc3#
- 2.Qxb2#
- 1...Sc3
- 2.Qxc3#
- 1...Sc5
- 2.Qc3#
- 2.Qb2#
- 1...Sb6
- 2.Qc3#
- 2.Qb2#
- 1...Sg6
- 2.Sxd7#
- 2.Sh7#
- 1...d2!
- 1...Rd8+
- 1.Bf4?
- 1...Rd8+
- 2.cxd8Q#
- 2.cxd8B#
- 1...Rxd5
- 2.Qe7#
- 1...Rxc7
- 2.Qd6#
- 1...Bxd5
- 2.Qd4#
- 1...Rd6
- 2.Qxd6#
- 1...Re7
- 2.Qxe7#
- 1...Ba2
- 2.Qd4#
- 1...Bb3
- 2.Qd4#
- 1...Bb5
- 2.Qd4#
- 1...Ba6
- 2.Qd4#
- 1...Sb2
- 2.Qc3#
- 2.Qxb2#
- 1...Sc3
- 2.Qxc3#
- 1...Sc5
- 2.Qc3#
- 2.Qb2#
- 1...Sb6
- 2.Qc3#
- 2.Qb2#
- 1...Sg6
- 2.Sxd7#
- 2.Sh7#
- 1...d2!
- 1...Rd8+
- 1.Bh6?
- 1...Rd8+
- 2.cxd8Q#
- 2.cxd8B#
- 1...Rxd5
- 2.Qe7#
- 1...Rxc7
- 2.Qd6#
- 1...Bxd5
- 2.Qd4#
- 1...Re7
- 2.Qxe7#
- 1...Rd6
- 2.Qxd6#
- 1...Ba2
- 2.Qd4#
- 1...Bb3
- 2.Qd4#
- 1...Bb5
- 2.Qd4#
- 1...Ba6
- 2.Qd4#
- 1...Sb2
- 2.Qc3#
- 2.Qxb2#
- 1...Sc3
- 2.Qxc3#
- 1...Sc5
- 2.Qc3#
- 2.Qb2#
- 1...Sb6
- 2.Qc3#
- 2.Qb2#
- 1...Sg6
- 2.Sxd7#
- 2.Sh7#
- 1...d2!
- 1...Rd8+
- 1.Rd8?
- 1...Ke5
- 2.Sxd7#
- 1...Rxd5
- 2.Qe7#
- 1...Rxc7
- 2.Qd6#
- 1...Bxd5
- 2.Qd4#
- 1...Rd6
- 2.Qxd6#
- 1...Re7
- 2.Qxe7#
- 1...Ba2
- 2.Qd4#
- 1...Bb3
- 2.Qd4#
- 1...Bb5
- 2.Qd4#
- 1...Ba6
- 2.Qd4#
- 1...Sb2
- 2.Qc3#
- 2.Qxb2#
- 1...Sc3
- 2.Qxc3#
- 1...Sc5
- 2.Qc3#
- 2.Qb2#
- 1...Sb6
- 2.Qc3#
- 2.Qb2#
- 1...Sg6
- 2.Sxd7#
- 1...Rxd8+!
- 1...Ke5
- 1.Qc5?
- threat
- 2.Qd4#
- 1...Rd8+
- 2.cxd8Q#
- 2.cxd8B#
- 1...Rxd5
- 2.Qe7#
- 1...Re7
- 2.Qxe7#
- 1...Sg6
- 2.Sxd7#
- 2.Sh7#
- 1...Sxc5!
- threat
- 1.Qb2+?
- 1...Sc3
- 2.Qxc3#
- 1...Sxb2!
- 1...Sc3
- 1.Qb6+?
- 1...Rd6
- 2.Qd4#
- 2.Qxd6#
- 1...Sxb6!
- 1...Rd6
- 1.c8Q?
- 1...Rxd5
- 2.Qe7#
- 1...Bxd5
- 2.Qd4#
- 1...Re7
- 2.Qxe7#
- 1...Rd6
- 2.Qxd6#
- 2.e5#
- 1...Ra7
- 2.Qd6#
- 2.Qc6#
- 2.e5#
- 1...Rc7
- 2.Qd6#
- 2.e5#
- 1...Rd8
- 2.Qe7#
- 2.Qxd8#
- 2.e5#
- 1...Ba2
- 2.Qd4#
- 1...Bb3
- 2.Qd4#
- 1...Bb5
- 2.Qd4#
- 1...Ba6
- 2.Qd4#
- 1...Sb2
- 2.Qc3#
- 2.Qxb2#
- 1...Sc3
- 2.Qxc3#
- 1...Sc5
- 2.Qc3#
- 2.Qb2#
- 1...Sb6
- 2.Qc3#
- 2.Qb2#
- 1...Sg6
- 2.Sxd7#
- 2.Sh7#
- 1...Rb7+!
- 1...Rxd5
- 1.c8S?
- 1...Rxd5
- 2.Qe7#
- 1...Bxd5
- 2.Qd4#
- 1...Re7
- 2.Qxe7#
- 1...Rd6
- 2.Qxd6#
- 1...Ra7
- 2.Qd6#
- 1...Rc7
- 2.Qd6#
- 1...Rd8
- 2.Qe7#
- 1...Ba2
- 2.Qd4#
- 1...Bb3
- 2.Qd4#
- 1...Bb5
- 2.Qd4#
- 1...Ba6
- 2.Qd4#
- 1...Sb2
- 2.Qc3#
- 2.Qxb2#
- 1...Sc3
- 2.Qxc3#
- 1...Sc5
- 2.Qc3#
- 2.Qb2#
- 1...Sb6
- 2.Qc3#
- 2.Qb2#
- 1...Sg6
- 2.Sxd7#
- 2.Sh7#
- 1...Rb7+!
- 1...Rxd5
- 1.c8B?
- 1...Rxd5
- 2.Qe7#
- 1...Bxd5
- 2.Qd4#
- 1...Re7
- 2.Qxe7#
- 1...Rd6
- 2.Qxd6#
- 2.e5#
- 1...Ra7
- 2.Qd6#
- 2.e5#
- 1...Rc7
- 2.Qd6#
- 2.e5#
- 1...Rd8
- 2.Qe7#
- 2.e5#
- 1...Ba2
- 2.Qd4#
- 1...Bb3
- 2.Qd4#
- 1...Bb5
- 2.Qd4#
- 1...Ba6
- 2.Qd4#
- 1...Sb2
- 2.Qc3#
- 2.Qxb2#
- 1...Sc3
- 2.Qxc3#
- 1...Sc5
- 2.Qc3#
- 2.Qb2#
- 1...Sb6
- 2.Qc3#
- 2.Qb2#
- 1...Sg6
- 2.Sxd7#
- 2.Sh7#
- 1...Rb7+!
- 1...Rxd5
- 1.c8R?
- 1...Rxd5
- 2.Qe7#
- 1...Bxd5
- 2.Qd4#
- 1...Re7
- 2.Qxe7#
- 1...Rd6
- 2.Qxd6#
- 1...Ra7
- 2.Rc6#
- 2.Qd6#
- 1...Rc7
- 2.Qd6#
- 1...Rd8
- 2.Qe7#
- 1...Ba2
- 2.Qd4#
- 1...Bb3
- 2.Qd4#
- 1...Bb5
- 2.Qd4#
- 1...Ba6
- 2.Qd4#
- 1...Sb2
- 2.Qc3#
- 2.Qxb2#
- 1...Sc3
- 2.Qxc3#
- 1...Sc5
- 2.Qc3#
- 2.Qb2#
- 1...Sb6
- 2.Qc3#
- 2.Qb2#
- 1...Sg6
- 2.Sxd7#
- 2.Sh7#
- 1...Rb7+!
- 1...Rxd5
- 1.Ka7?
- Keys
- 1.Rc8!
- 1...Ke5
- 2.Sxd7#
- 1...Rxd5
- 2.Qe7#
- 1...Rxc7
- 2.Qd6#
- 1...Bxd5
- 2.Qd4#
- 1...Rd6
- 2.Qxd6#
- 1...Re7
- 2.Qxe7#
- 1...Rd8
- 2.Qe7#
- 1...Ba2
- 2.Qd4#
- 1...Bb3
- 2.Qd4#
- 1...Bb5
- 2.Qd4#
- 1...Ba6
- 2.Qd4#
- 1...Sb2
- 2.Qc3#
- 2.Qxb2#
- 1...Sc3
- 2.Qxc3#
- 1...Sc5
- 2.Qc3#
- 2.Qb2#
- 1...Sb6
- 2.Qc3#
- 2.Qb2#
- 1...Sg6
- 2.Sxd7#
- 1...Ke5
- 1.Rc8!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD,XB(D)::QAB1(B)
- R(e);N_GUARD::QAR2(B),XR(e)
- R(e);N_GUARD,XP(F)::QAR2(B)
- R(e);N_GUARD::QAB1(B),XR(e)
- R(e);CHECK,OGATE::PXR(e)=Q
- B(c);OGATE::QAB(B)
- B(c);OGATE,XB(D)::QAB(B)
- S(b);N_GUARD::QAB(B),XS(b)
- Tries
- Try
- K(G);P_SPINP(F),S_FLIGHT
- Vars
- R(e);N_GUARD,N_PINP(F),XB(D)::QAB1(B)
- B(c);OGATE,XB(D)::QAB(B)
- R(e);N_GUARD::QAB1(B),XR(e)
- R(e);N_GUARD,N_PINP(F)::QAR2(B),XR(e)
- B(c);OGATE::QAB(B)
- S(b);N_GUARD::QAB(B),XS(b)
- Refutation
- R(e);CHECK,XP(F)
- Try
- B(A);
- Vars
- R(e);CHECK,OGATE::PXR(e)=Q
- R(e);N_GUARD,XB(D)::QAB1(B)
- R(e);N_GUARD,XP(F)::QAR2(B)
- B(c);OGATE,XB(D)::QAB(B)
- R(e);N_GUARD::QAB1(B),XR(e)
- R(e);N_GUARD::QAR2(B),XR(e)
- B(c);OGATE::QAB(B)
- S(b);N_GUARD::QAB(B),XS(b)
- Refutation
- P(a);
- Try
- B(A);
- Threat
- B(A)
- Vars
- R(e);CHECK,OGATE::PXR(e)=Q
- R(e);N_GUARD::QAB1(B),XR(e)
- S(g);SBLOCK::S(I)
- Refutation
- K(d);S_FLIGHT
- Try
- B(A);
- Vars
- R(e);CHECK,OGATE::PXR(e)=Q
- R(e);N_GUARD,XB(D)::QAB1(B)
- R(e);N_GUARD,XP(F)::QAR2(B)
- B(c);OGATE,XB(D)::QAB(B)
- R(e);N_GUARD::QAB1(B),XR(e)
- R(e);N_GUARD::QAR2(B),XR(e)
- B(c);OGATE::QAB(B)
- S(b);N_GUARD::QAB(B),XS(b)
- Refutation
- P(a);
- Try
- B(A);
- Vars
- R(e);CHECK,OGATE::PXR(e)=Q
- R(e);N_GUARD,XB(D)::QAB1(B)
- R(e);N_GUARD,XP(F)::QAR2(B)
- B(c);OGATE,XB(D)::QAB(B)
- R(e);N_GUARD::QAR2(B),XR(e)
- R(e);N_GUARD::QAB1(B),XR(e)
- B(c);OGATE::QAB(B)
- S(b);N_GUARD::QAB(B),XS(b)
- Refutation
- P(a);
- Try
- B(A);
- Vars
- R(e);CHECK,OGATE::PXR(e)=Q
- R(e);N_GUARD,XB(D)::QAB1(B)
- R(e);N_GUARD,XP(F)::QAR2(B)
- B(c);OGATE,XB(D)::QAB(B)
- R(e);N_GUARD::QAB1(B),XR(e)
- R(e);N_GUARD::QAR2(B),XR(e)
- B(c);OGATE::QAB(B)
- S(b);N_GUARD::QAB(B),XS(b)
- Refutation
- P(a);
- Try
- R(H);
- Vars
- K(d);S_FLIGHT::S(I),XR(e)
- R(e);N_GUARD,XB(D)::QAB1(B)
- R(e);N_GUARD,XP(F)::QAR2(B)
- B(c);OGATE,XB(D)::QAB(B)
- R(e);N_GUARD::QAR2(B),XR(e)
- R(e);N_GUARD::QAB1(B),XR(e)
- B(c);OGATE::QAB(B)
- S(b);N_GUARD::QAB(B),XS(b)
- S(g);SBLOCK::S(I),XR(e)
- Refutation
- R(e);CHECK,XR(H)
- Try
- Q(B);
- Threat
- QAB(B)
- Vars
- R(e);CHECK,OGATE::PXR(e)=Q
- R(e);N_GUARD,XB(D)::QAB1(B)
- R(e);N_GUARD::QAB1(B),XR(e)
- Refutation
- S(b);XQ(B)
- Try
- Q(B);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::QAB(B),XS(b)
- Refutation
- S(b);XQ(B)
- Try
- Q(B);CHECK
- Refutation
- S(b);XQ(B)
- Try
- P(F);
- Vars
- R(e);N_GUARD,XB(D)::QAB1(B)
- B(c);OGATE,XB(D)::QAB(B)
- R(e);N_GUARD::QAB1(B),XR(e)
- B(c);OGATE::QAB(B)
- S(b);N_GUARD::QAB(B),XS(b)
- Refutation
- R(e);CHECK
- Try
- P(F);
- Vars
- R(e);N_GUARD,XB(D)::QAB1(B)
- B(c);OGATE,XB(D)::QAB(B)
- R(e);N_GUARD::QAB1(B),XR(e)
- R(e);N_GUARD::QAR2(B),XR(e)
- R(e);N_GUARD::QAR2(B)
- R(e);N_GUARD,P_PINS(F)::QAB1(B)
- B(c);OGATE::QAB(B)
- S(b);N_GUARD::QAB(B),XS(b)
- Refutation
- R(e);CHECK
- Try
- P(F);
- Vars
- R(e);N_GUARD,XB(D)::QAB1(B)
- B(c);OGATE,XB(D)::QAB(B)
- R(e);N_GUARD::QAB1(B),XR(e)
- B(c);OGATE::QAB(B)
- S(b);N_GUARD::QAB(B),XS(b)
- Refutation
- R(e);CHECK
- Try
- P(F);
- Vars
- R(e);N_GUARD,XB(D)::QAB1(B)
- B(c);OGATE,XB(D)::QAB(B)
- R(e);N_GUARD::QAB1(B),XR(e)
- R(e);N_GUARD::QAR2(B),XR(e)
- R(e);N_GUARD::QAR2(B)
- R(e);N_GUARD,P_PINR(F)::QAB1(B)
- B(c);OGATE::QAB(B)
- S(b);N_GUARD::QAB(B),XS(b)
- Refutation
- R(e);CHECK
- Try
- Actual
- R(H);
- Vars
- K(d);S_FLIGHT::S(I),XR(e)
- R(e);N_GUARD,XB(D)::QAB1(B)
- R(e);N_GUARD,XP(F)::QAR2(B)
- B(c);OGATE,XB(D)::QAB(B)
- R(e);N_GUARD::QAR2(B),XR(e)
- R(e);N_GUARD::QAB1(B),XR(e)
- R(e);N_GUARD,P_PINR(H)::QAB1(B)
- B(c);OGATE::QAB(B)
- S(b);N_GUARD::QAB(B),XS(b)
- S(g);SBLOCK::S(I),XR(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).