MESON Chess Problem Database
Problem Display
PID: 19116 (2K2n1n/8/RP1kB3/NQp1R1N1/2pp4/q6p/2r4B/7b w - - 0 1)
Wurzburg, Otto
1st Prize, Pittsburgh Gazette-Times, 1912
#2
9 + 10
| 3360 | Simple Two-move Themes | 1924 |
| 5424 | Versunkene Schatze | 1998 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Qxc5#
- 1...Qb2
- 2.Qxc5#
- 1...Qa1
- 2.Qxc5#
- 1...Qa2
- 2.Qxc5#
- 1...Qb3
- 2.Qxc5#
- 1...Qc3
- 2.Qxc5#
- 1...Qd3
- 2.Qxc5#
- 1...Qe3
- 2.Qxc5#
- 1...Qf3
- 2.Qxc5#
- 1...Qg3
- 2.Qxc5#
- 1...Qa4
- 2.Qxc5#
- 1...Sxe6
- 2.Qd7#
- 1...Sfg6
- 2.Qd7#
- 1...Sd7
- 2.Qxd7#
- 1...Sh7
- 2.Qd7#
- 1...Qc1
- Tries
- 1.Kd8?
- threat
- 2.Rd5#
- 1...Sf7+
- 2.Sxf7#
- 1...Rxh2
- 2.Sxc4#
- 1...Qg3
- 2.Qxc5#
- 1...Bd5
- 2.Rxd5#
- 1...Sxe6+!
- threat
- 1.Bxc4?
- threat
- 2.Re6#
- 1...Bb7+
- 2.Sxb7#
- 1...Rxc4
- 2.Sxc4#
- 1...Qg3
- 2.Qxc5#
- 1...Se6
- 2.Rxe6#
- 2.Qd7#
- 1...Rxh2!
- threat
- 1.Bd5?
- threat
- 2.Sb7#
- 2.Qc6#
- 2.b7#
- 1...Qxa5
- 2.Qc6#
- 1...Rxh2
- 2.Sxc4#
- 1...Bxd5
- 2.Re6#
- 1...Se6
- 2.Qd7#
- 1...Qa4
- 2.Sb7#
- 2.b7#
- 1...Sd7
- 2.Sb7#
- 2.Qc6#
- 2.Qxd7#
- 1...Qg3!
- threat
- 1.Bf7?
- 1...Bb7+
- 2.Sxb7#
- 1...Qxa5
- 2.Re2#
- 1...Rxh2
- 2.Sxc4#
- 1...Sxf7
- 2.Sxf7#
- 1...Qg3
- 2.Qxc5#
- 1...Se6
- 2.Qd7#
- 1...Qb4
- 2.Re2#
- 1...Qc1
- 2.Qxc5#
- 1...Qb2
- 2.Re2#
- 2.Qxc5#
- 1...Qa1
- 2.Re2#
- 2.Qxc5#
- 1...Qa2
- 2.Re2#
- 2.Qxc5#
- 1...Qb3
- 2.Qxc5#
- 1...Qc3
- 2.Qxc5#
- 1...Qd3
- 2.Qxc5#
- 1...Qe3
- 2.Qxc5#
- 1...Qf3
- 2.Qxc5#
- 1...Qa4
- 2.Re2#
- 2.Qxc5#
- 1...Rc1
- 2.Re3#
- 1...Ra2
- 2.Sxc4#
- 1...Rb2
- 2.Sxc4#
- 1...Rd2
- 2.Sxc4#
- 1...Re2
- 2.Sxc4#
- 1...Rf2
- 2.Sxc4#
- 1...Rg2
- 2.Sxc4#
- 2.Sb7#
- 2.Se4#
- 2.Qc6#
- 2.b7#
- 1...Rc3
- 2.Re3#
- 1...Bg2
- 2.Re3#
- 1...Bf3
- 2.Re2#
- 1...Be4
- 2.Sxe4#
- 1...Bd5
- 2.Re6#
- 1...Bc6
- 2.Qxc6#
- 1...Ba8
- 2.b7#
- 1...Sfg6
- 2.Qd7#
- 1...Sd7
- 2.Qxd7#
- 1...Sh7
- 2.Qd7#
- 1...c3
- 2.Sc4#
- 2.Re2#
- 1...d3
- 2.Re2#
- 1...Shg6!
- 1...Bb7+
- 1.Ra7?
- threat
- 2.Rd5#
- 1...Rxh2
- 2.Sxc4#
- 1...Sxe6
- 2.Rd7#
- 2.Qd7#
- 1...Qg3
- 2.Qxc5#
- 1...Sd7
- 2.Rxd7#
- 2.Qxd7#
- 1...Bd5
- 2.Rxd5#
- 1...Bb7+!
- threat
- 1.Qe8?
- threat
- 2.Rd5#
- 2.Qxf8#
- 1...Bb7+
- 2.Sxb7#
- 1...Qxa5
- 2.Re2#
- 2.Rd5#
- 1...Rxh2
- 2.Sxc4#
- 1...Sxe6
- 2.Qd7#
- 2.Qxe6#
- 1...Qf3
- 2.Rd5#
- 1...Rf2
- 2.Sxc4#
- 2.Rd5#
- 1...Bd5
- 2.Rxd5#
- 2.Qxf8#
- 1...Sfg6
- 2.Rd5#
- 2.Qd7#
- 2.Qd8#
- 1...Sd7
- 2.Rd5#
- 2.Qxd7#
- 1...Sh7
- 2.Rd5#
- 2.Qd7#
- 2.Qd8#
- 1...Shg6
- 2.Sf7#
- 2.Rd5#
- 1...Qg3!
- threat
- 1.Kd8?
- Keys
- 1.Bg8!
- 1...Bb7+
- 2.Sxb7#
- 1...Qxa5
- 2.Re2#
- 1...Rxh2
- 2.Sxc4#
- 1...Qg3
- 2.Qxc5#
- 1...Se6
- 2.Qd7#
- 1...Qb4
- 2.Re2#
- 1...Qc1
- 2.Qxc5#
- 1...Qb2
- 2.Re2#
- 2.Qxc5#
- 1...Qa1
- 2.Re2#
- 2.Qxc5#
- 1...Qa2
- 2.Re2#
- 2.Qxc5#
- 1...Qb3
- 2.Qxc5#
- 1...Qc3
- 2.Qxc5#
- 1...Qd3
- 2.Qxc5#
- 1...Qe3
- 2.Qxc5#
- 1...Qf3
- 2.Qxc5#
- 1...Qa4
- 2.Re2#
- 2.Qxc5#
- 1...Rc1
- 2.Re3#
- 1...Ra2
- 2.Sxc4#
- 1...Rb2
- 2.Sxc4#
- 1...Rd2
- 2.Sxc4#
- 1...Re2
- 2.Sxc4#
- 1...Rf2
- 2.Sxc4#
- 1...Rg2
- 2.Sxc4#
- 2.Sb7#
- 2.Se4#
- 2.Qc6#
- 2.b7#
- 1...Rc3
- 2.Re3#
- 1...Bg2
- 2.Re3#
- 1...Bf3
- 2.Re2#
- 1...Be4
- 2.Sxe4#
- 1...Bd5
- 2.Re6#
- 1...Bc6
- 2.Qxc6#
- 1...Ba8
- 2.b7#
- 1...Sfg6
- 2.Qd7#
- 1...Sd7
- 2.Qxd7#
- 1...Sh7
- 2.Qd7#
- 1...Shg6
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...c3
- 2.Sc4#
- 2.Re2#
- 1...d3
- 2.Re2#
- 1...Bb7+
- 1.Bg8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 20
- REMOVED MATES = 4
- Sets
- Q(c);N_GUARD::QAB1(C),XP(g)
- S(i);N_GUARD,XB(H)::QAR1(C)
- S(i);N_GUARD::QAR1(C)
- S(i);N_GUARD::QAR1(C),XS(i)
- Tries
- Try
- K(I);P-FLIGHT
- Threat
- B(A)+R(D),DCHECK
- Vars
- S(j);CHECK,N_GUARD::S(E),XS(j)
- R(b);N_GUARD,XB(A)::S(B),XP(e)
- Q(c);N_GUARD::QAB1(C),XP(g)
- B(a);::B(A)+R(D),DCHECK,XB(a)
- Refutation
- S(i);CHECK,XB(H)
- Try
- B(H);XP(e)
- Threat
- B(A)+R(D),DCHECK
- Vars
- B(a);CHECK,N_GUARD::S(B),XB(a)
- R(b);XB(H)::S(B),XR(b)
- Q(c);N_GUARD::QAB1(C),XP(g)
- Refutation
- R(b);XB(A)
- Try
- B(H);
- Threat
- DUALS(3)
- Vars
- Q(c);XS(B)::QAR1(C)
- R(b);N_GUARD,XB(A)::S(B),XP(e)
- B(a);SBLOCK,XB(H)::B(A)+R(D),DCHECK
- S(i);N_GUARD::QAR1(C)
- Refutation
- Q(c);
- Try
- B(H);
- Vars
- B(a);CHECK,N_GUARD::S(B),XB(a)
- Q(c);N_GUARD,XS(B)::B(A)+R(D)
- R(b);N_GUARD,XB(A)::S(B),XP(e)
- S(j);XB(H)::S(E),XS(j)
- Q(c);N_GUARD::QAB1(C),XP(g)
- S(i);N_GUARD::QAR1(C)
- Q(c);N_GUARD::B(A)+R(D)
- R(b);N_GUARD::B(A)+R(D)
- R(b);N_GUARD::S(B),XP(e)
- B(a);S_CUTR(b)::B(A)+R(D)
- B(a);S_CUTQ(c)::B(A)+R(D)
- B(a);N_GUARD::S(E),XB(a)
- B(a);SBLOCK::B(A)+R(D),DCHECK
- B(a);N_GUARD::QAR1(C),XB(a)
- B(a);N_GUARD::R(F)+P(G)
- S(i);N_GUARD::QAR1(C),XS(i)
- P(f);S_CUTQ(c)::B(A)+R(D)
- Refutation
- S(j);
- Try
- R(F);
- Threat
- B(A)+R(D),DCHECK
- Vars
- R(b);N_GUARD,XB(A)::S(B),XP(e)
- Q(c);N_GUARD::QAB1(C),XP(g)
- B(a);::B(A)+R(D),DCHECK,XB(a)
- Refutation
- B(a);CHECK
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,N_GUARD::S(B),XB(a)
- R(b);N_GUARD,XB(A)::S(B),XP(e)
- Q(c);::B(A)+R(D),DCHECK
- Refutation
- Q(c);
- Try
- Actual
- B(H);
- Vars
- B(a);CHECK,N_GUARD::S(B),XB(a)
- Q(c);N_GUARD,XS(B)::B(A)+R(D)
- R(b);N_GUARD,XB(A)::S(B),XP(e)
- Q(c);N_GUARD::QAB1(C),XP(g)
- S(i);N_GUARD::QAR1(C)
- Q(c);N_GUARD::B(A)+R(D)
- R(b);N_GUARD::B(A)+R(D)
- R(b);N_GUARD::S(B),XP(e)
- B(a);S_CUTR(b)::B(A)+R(D)
- B(a);S_CUTQ(c)::B(A)+R(D)
- B(a);N_GUARD::S(E),XB(a)
- B(a);SBLOCK::B(A)+R(D),DCHECK
- B(a);N_GUARD::QAR1(C),XB(a)
- B(a);N_GUARD::R(F)+P(G)
- S(i);N_GUARD::QAR1(C),XS(i)
- S(j);N_GUARD::S(E)
- S(j);N_GUARD::S(E),XS(j)
- P(f);S_CUTQ(c)::B(A)+R(D)
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).