MESON Chess Problem Database
Problem Display
PID: 40471 (2brrbB1/7N/2Q5/1pR5/1p1k2p1/4p1N1/4K2B/8 w - - 0 1)
Wurzburg, Otto
American Chess Magazine, 1898
#2
7 + 9
| 15 | British Chess Magazine | 1909 |
| 3360 | Simple Two-move Themes | 1924 |
| 268 | Chess Life | 1960 |
| 5064 | 100 Years of the American Two-move Chess Problem | 1962 |
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Rxd5#
- 2.Qxd5#
- 1...Rd7
- 2.Sf5#
- 1...Re6
- 2.Sf5#
- 1...Bf5
- 2.Sxf5#
- 1...Ba6
- 2.Sf5#
- 1...Bb7
- 2.Sf5#
- 1...Bd7
- 2.Rd5#
- 2.Qd5#
- 1...Bd6
- 2.Rd5#
- 2.Qd5#
- 1...Rd5
- Tries
- 1.Rc2?
- 1...Ke5
- 2.Qf6#
- 1...Rd6
- 2.Qc5#
- 1...Rd5
- 2.Qxd5#
- 1...Rd7
- 2.Sf5#
- 1...Re4
- 2.Qxe4#
- 1...Re6
- 2.Sf5#
- 1...Re7
- 2.Qc5#
- 1...Bf5
- 2.Sxf5#
- 1...Ba6
- 2.Sf5#
- 1...Be6
- 2.Qe4#
- 1...Bb7
- 2.Sf5#
- 1...Bd7
- 2.Qd5#
- 1...Bc5
- 2.Qxc5#
- 1...Bd6
- 2.Qd5#
- 1...Bh6
- 2.Qc5#
- 1...Be7
- 2.Qe4#
- 1...Bg7
- 2.Qc5#
- 1...b3
- 2.Qc3#
- 1...Re5!
- 1...Ke5
- 1.Rc4+?
- 1...Ke5
- 2.Re4#
- 2.Qf6#
- 1...bxc4!
- 1...Ke5
- 1.Rxb5?
- threat
- 2.Qc4#
- 1...Rd5
- 2.Rxd5#
- 1...Bc5
- 2.Qxc5#
- 1...Re6
- 2.Sf5#
- 1...Be6!
- threat
- 1.Qf6+?
- 1...Re5
- 2.Qxe5#
- 1...Kxc5!
- 1...Re5
- 1.Rc2?
- Keys
- 1.Rc1!
- 1...Ke5
- 2.Qf6#
- 1...Rd6
- 2.Qc5#
- 1...Rd5
- 2.Qxd5#
- 1...Rd7
- 2.Sf5#
- 1...Re4
- 2.Qxe4#
- 1...Re5
- 2.Rd1#
- 1...Re6
- 2.Sf5#
- 1...Re7
- 2.Qc5#
- 1...Bf5
- 2.Sxf5#
- 1...Ba6
- 2.Sf5#
- 1...Be6
- 2.Qe4#
- 1...Bb7
- 2.Sf5#
- 1...Bd7
- 2.Qd5#
- 1...Bc5
- 2.Qxc5#
- 1...Bd6
- 2.Qd5#
- 1...Bh6
- 2.Qc5#
- 1...Be7
- 2.Qe4#
- 1...Bg7
- 2.Qc5#
- 1...b3
- 2.Qc3#
- 1...Ke5
- 1.Rc1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 14
- REMOVED MATES = 0
- Sets
- R(g);S_CUTB(f)::S(C)
- R(h);S_CUTB(f)::S(C)
- B(f);N_GUARD::S(C),XB(f)
- B(f);N_GUARD::S(C)
- Tries
- Try
- R(D);
- Vars
- K(c);S_FLIGHT::QAB1(E)
- R(g);S_CUTB(i)::QAB1(E)
- R(g);N_GUARD::QAR1(E),XR(g)
- R(g);S_CUTB(f)::S(C)
- R(h);N_GUARD::QAR1(E),XR(h)
- R(h);S_CUTB(f)::S(C)
- R(h);S_CUTB(i)::QAB1(E)
- B(f);N_GUARD::S(C),XB(f)
- B(f);N_GUARD::S(C)
- B(f);S_CUTR(h)::QAR1(E)
- B(f);S_CUTR(g)::QAR1(E)
- B(i);N_GUARD::QAB1(E),XB(i)
- B(i);S_CUTR(g)::QAR1(E)
- B(i);N_GUARD::QAB1(E)
- B(i);S_CUTR(h)::QAR1(E)
- P(b);N_GUARD::QAB1(E)
- Refutation
- R(h);
- Try
- R(D);CHECK
- Refutation
- P(e);XR(D)
- Try
- R(D);XP(e)
- Threat
- QAR1(E)
- Vars
- R(g);N_GUARD::R1(D),XR(g)
- B(i);N_GUARD::QAB1(E),XB(i)
- R(h);S_CUTB(f)::S(C)
- Refutation
- B(f);
- Try
- Q(E);CHECK
- Vars
- R(h);N_GUARD,P_SPINR(h)::QAB1(E),XR(h)
- Refutation
- K(c);S_FLIGHT,XR(D)
- Try
- Actual
- R(D);
- Vars
- K(c);S_FLIGHT::QAB1(E)
- R(g);S_CUTB(i)::QAB1(E)
- R(g);N_GUARD::QAR1(E),XR(g)
- R(g);S_CUTB(f)::S(C)
- R(h);N_GUARD::QAR1(E),XR(h)
- R(h);SBLOCK::R(D)
- R(h);S_CUTB(f)::S(C)
- R(h);S_CUTB(i)::QAB1(E)
- B(f);N_GUARD::S(C),XB(f)
- B(f);N_GUARD::S(C)
- B(f);S_CUTR(h)::QAR1(E)
- B(f);S_CUTR(g)::QAR1(E)
- B(i);N_GUARD::QAB1(E),XB(i)
- B(i);S_CUTR(g)::QAR1(E)
- B(i);N_GUARD::QAB1(E)
- B(i);S_CUTR(h)::QAR1(E)
- P(b);N_GUARD::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).