MESON Chess Problem Database
Problem Display
PID: 89787 (7k/3pN1p1/2pP2K1/2P5/bP1R2p1/1n1B4/Qb6/NRn5 w - - 0 1)
Ehrmann, Willi
Die Schwalbe, 1949
#2
10 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bxa1
- 2.Qh2#
- 1...Ba3
- 2.Qh2#
- 1...Bc3
- 2.Qh2#
- 1...Bxd4
- 2.Qh2#
- 1...Bb5
- 2.Qa8#
- 1...Sxa2
- 2.Rh1#
- 1...Se2
- 2.Rh1#
- 1...Sxd3
- 2.Rh1#
- 1...Sxa1
- 2.Qg8#
- 1...Sd2
- 2.Qg8#
- 1...Sxd4
- 2.Qg8#
- 1...Sa5
- 2.Qg8#
- 1...Sxc5
- 2.Qg8#
- 1...g3
- 2.Rh4#
- 1...Bxa1
- Tries
- 1.Kg5?
- 1...Bxa1
- 2.Qh2#
- 1...Bxd4
- 2.Qh2#
- 1...Sxa2
- 2.Rh1#
- 1...Sxd3
- 2.Rh1#
- 1...Sxa1
- 2.Qg8#
- 1...Sxd4
- 2.Qg8#
- 1...Sxc5
- 2.Qg8#
- 1...Ba3
- 2.Qh2#
- 1...Bc3
- 2.Qh2#
- 1...Bb5
- 2.Qa8#
- 1...Se2
- 2.Rh1#
- 1...Sd2
- 2.Qg8#
- 1...Sa5
- 2.Qg8#
- 1...g3
- 2.Rh4#
- 1...g6!
- 1...Bxa1
- 1.Sxb3?
- 1...Bxd4
- 2.Qh2#
- 1...Sxa2
- 2.Rh1#
- 1...Sxb3
- 2.Rh1#
- 1...Sxd3
- 2.Rh1#
- 1...Ba1
- 2.Qh2#
- 1...Ba3
- 2.Qh2#
- 1...Bc3
- 2.Qh2#
- 1...Bb5
- 2.Qa8#
- 1...Se2
- 2.Rh1#
- 1...g3
- 2.Rh4#
- 1...Bxb3!
- 1...Bxd4
- 1.Be4?
- 1...Bxa1
- 2.Qh2#
- 1...Bxd4
- 2.Qh2#
- 1...Sxa2
- 2.Rh1#
- 1...Sxa1
- 2.Qg8#
- 1...Sxd4
- 2.Qg8#
- 1...Sxc5
- 2.Qg8#
- 1...Ba3
- 2.Qh2#
- 1...Bc3
- 2.Qh2#
- 1...Bb5
- 2.Qa8#
- 1...Se2
- 2.Rh1#
- 1...Sd3
- 2.Rh1#
- 1...Sd2
- 2.Qg8#
- 1...Sa5
- 2.Qg8#
- 1...g3!
- 1...Bxa1
- 1.Bb5?
- 1...Bxa1
- 2.Qh2#
- 1...Bxd4
- 2.Qh2#
- 1...Bxb5
- 2.Qa8#
- 1...Sxa2
- 2.Rh1#
- 1...Sxa1
- 2.Qg8#
- 1...Sxd4
- 2.Qg8#
- 1...Sxc5
- 2.Qg8#
- 1...Ba3
- 2.Qh2#
- 1...Bc3
- 2.Qh2#
- 1...Se2
- 2.Rh1#
- 1...Sd3
- 2.Rh1#
- 1...Sd2
- 2.Qg8#
- 1...Sa5
- 2.Qg8#
- 1...g3
- 2.Rh4#
- 1...cxb5!
- 1...Bxa1
- 1.Ba6?
- 1...Bxa1
- 2.Qh2#
- 1...Bxd4
- 2.Qh2#
- 1...Sxa2
- 2.Rh1#
- 1...Sxa1
- 2.Qg8#
- 1...Sxd4
- 2.Qg8#
- 1...Sxc5
- 2.Qg8#
- 1...Ba3
- 2.Qh2#
- 1...Bc3
- 2.Qh2#
- 1...Se2
- 2.Rh1#
- 1...Sd3
- 2.Rh1#
- 1...Sd2
- 2.Qg8#
- 1...Sa5
- 2.Qg8#
- 1...g3
- 2.Rh4#
- 1...Bb5!
- 1...Bxa1
- 1.Rxc1?
- threat
- 2.Rh1#
- 1...Sxc1
- 2.Qg8#
- 1...Bxc1!
- threat
- 1.Rxb2?
- threat
- 2.Rh2#
- 1...Sd2
- 2.Qg8#
- 1...g3
- 2.Rh4#
- 1...Se2!
- threat
- 1.Qxb3?
- threat
- 2.Qg8#
- 1...Sxb3
- 2.Rh1#
- 1...Bxb3!
- threat
- 1.Qxb2?
- threat
- 2.Qh2#
- 1...Se2
- 2.Rh1#
- 1...g3
- 2.Rh4#
- 1...Sd2!
- threat
- 1.b5?
- 1...Bxa1
- 2.Qh2#
- 1...Bxd4
- 2.Qh2#
- 1...Bxb5
- 2.Qa8#
- 1...Sxa2
- 2.Rh1#
- 1...Sxd3
- 2.Rh1#
- 1...Sxa1
- 2.Qg8#
- 1...Sxd4
- 2.Qg8#
- 1...Sxc5
- 2.Qg8#
- 1...Ba3
- 2.Qh2#
- 1...Bc3
- 2.Qh2#
- 1...Se2
- 2.Rh1#
- 1...Sd2
- 2.Qg8#
- 1...Sa5
- 2.Qg8#
- 1...g3
- 2.Rh4#
- 1...cxb5!
- 1...Bxa1
- 1.Kg5?
- Keys
- 1.Bf5!
- 1...Bxa1
- 2.Qh2#
- 1...Bxd4
- 2.Qh2#
- 1...Sxa2
- 2.Rh1#
- 1...Sxa1
- 2.Qg8#
- 1...Sxd4
- 2.Qg8#
- 1...Sxc5
- 2.Qg8#
- 1...Ba3
- 2.Qh2#
- 1...Bc3
- 2.Qh2#
- 1...Bb5
- 2.Qa8#
- 1...Se2
- 2.Rh1#
- 1...Sd3
- 2.Rh1#
- 1...Sd2
- 2.Qg8#
- 1...Sa5
- 2.Qg8#
- 1...g3
- 2.Rh4#
- 1...Bxa1
- 1.Bf5!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(b);OGATE,XS(A)::QAR(C)
- B(b);OGATE::QAR(C)
- B(b);OGATE,XR(F)::QAR(C)
- B(d);OGATE::QAB1(C)
- S(a);OGATE,XQ(C)::R(B)
- S(a);OGATE::R(B)
- S(a);OGATE,XB(D)::R(B)
- S(c);OGATE,XS(A)::QAR1(C)
- S(c);OGATE::QAR1(C)
- S(c);OGATE,XR(F)::QAR1(C)
- S(c);OGATE,XP(G)::QAR1(C)
- P(e);OGATE::R(F)
- Tries
- Try
- K(I);P-FLIGHT
- Vars
- B(b);OGATE,XS(A)::QAR(C)
- B(b);OGATE,XR(F)::QAR(C)
- S(a);OGATE,XQ(C)::R(B)
- S(a);OGATE,XB(D)::R(B)
- S(c);OGATE,XS(A)::QAR1(C)
- S(c);OGATE,XR(F)::QAR1(C)
- S(c);OGATE,XP(G)::QAR1(C)
- B(b);OGATE::QAR(C)
- B(d);OGATE::QAB1(C)
- S(a);OGATE::R(B)
- S(c);OGATE::QAR1(C)
- P(e);OGATE::R(F)
- Refutation
- P(h);
- Try
- S(A);XS(c)
- Vars
- B(b);OGATE,XR(F)::QAR(C)
- S(a);OGATE,XQ(C)::R(B)
- S(a);OGATE,XS(A)::R(B)
- S(a);OGATE,XB(D)::R(B)
- B(b);OGATE::QAR(C)
- B(d);OGATE::QAB1(C)
- S(a);OGATE::R(B)
- P(e);OGATE::R(F)
- Refutation
- B(d);XS(A)
- Try
- B(D);
- Vars
- B(b);OGATE,XS(A)::QAR(C)
- B(b);OGATE,XR(F)::QAR(C)
- S(a);OGATE,XQ(C)::R(B)
- S(c);OGATE,XS(A)::QAR1(C)
- S(c);OGATE,XR(F)::QAR1(C)
- S(c);OGATE,XP(G)::QAR1(C)
- B(b);OGATE::QAR(C)
- B(d);OGATE::QAB1(C)
- S(a);OGATE::R(B)
- S(c);OGATE::QAR1(C)
- Refutation
- P(e);
- Try
- B(D);
- Vars
- B(b);OGATE,XS(A)::QAR(C)
- B(b);OGATE,XR(F)::QAR(C)
- B(d);OGATE,XB(D)::QAB1(C)
- S(a);OGATE,XQ(C)::R(B)
- S(c);OGATE,XS(A)::QAR1(C)
- S(c);OGATE,XR(F)::QAR1(C)
- S(c);OGATE,XP(G)::QAR1(C)
- B(b);OGATE::QAR(C)
- S(a);OGATE::R(B)
- S(c);OGATE::QAR1(C)
- P(e);OGATE::R(F)
- Refutation
- P(f);XB(D)
- Try
- B(D);
- Vars
- B(b);OGATE,XS(A)::QAR(C)
- B(b);OGATE,XR(F)::QAR(C)
- S(a);OGATE,XQ(C)::R(B)
- S(c);OGATE,XS(A)::QAR1(C)
- S(c);OGATE,XR(F)::QAR1(C)
- S(c);OGATE,XP(G)::QAR1(C)
- B(b);OGATE::QAR(C)
- S(a);OGATE::R(B)
- S(c);OGATE::QAR1(C)
- P(e);OGATE::R(F)
- Refutation
- B(d);
- Try
- R(B);XS(a)
- Threat
- R(B)
- Vars
- S(c);OGATE,XR(B)::QAR1(C)
- Refutation
- B(b);XR(B)
- Try
- R(B);XB(b)
- Threat
- R(B)
- Vars
- S(c);OGATE::QAR1(C)
- P(e);OGATE::R(F)
- Refutation
- S(a);
- Try
- Q(C);XS(c)
- Threat
- QAR1(C)
- Vars
- S(a);OGATE,XQ(C)::R(B)
- Refutation
- B(d);XQ(C)
- Try
- Q(C);XB(b)
- Threat
- QAR(C)
- Vars
- S(a);OGATE::R(B)
- P(e);OGATE::R(F)
- Refutation
- S(c);
- Try
- P(E);
- Vars
- B(b);OGATE,XS(A)::QAR(C)
- B(b);OGATE,XR(F)::QAR(C)
- B(d);OGATE,XP(E)::QAB1(C)
- S(a);OGATE,XQ(C)::R(B)
- S(a);OGATE,XB(D)::R(B)
- S(c);OGATE,XS(A)::QAR1(C)
- S(c);OGATE,XR(F)::QAR1(C)
- S(c);OGATE,XP(G)::QAR1(C)
- B(b);OGATE::QAR(C)
- S(a);OGATE::R(B)
- S(c);OGATE::QAR1(C)
- P(e);OGATE::R(F)
- Refutation
- P(f);XP(E)
- Try
- Actual
- B(D);
- Vars
- B(b);OGATE,XS(A)::QAR(C)
- B(b);OGATE,XR(F)::QAR(C)
- S(a);OGATE,XQ(C)::R(B)
- S(c);OGATE,XS(A)::QAR1(C)
- S(c);OGATE,XR(F)::QAR1(C)
- S(c);OGATE,XP(G)::QAR1(C)
- B(b);OGATE::QAR(C)
- B(d);OGATE::QAB1(C)
- S(a);OGATE::R(B)
- S(c);OGATE::QAR1(C)
- P(e);OGATE::R(F)
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).