MESON Chess Problem Database
Problem Display
PID: 16688 (7q/8/3Q2B1/4N3/3K1k2/3R2R1/4b3/8 w - - 0 1)
Wurzburg, Otto
2nd Prize, 02. Loyd MT, 1941-1942
#2
6 + 3
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
| 3325 | Wurzburg Artistry | 1974 |
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Qxe5+
- 2.Qxe5#
- 1...Qf6
- 2.Qxf6#
- 1...Qh1
- 2.Sf3#
- 2.Sc4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qf8#
- 2.Qf6#
- 1...Qh2
- 2.Sf3#
- 2.Sc4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qf8#
- 2.Qf6#
- 1...Qh3
- 2.Sf3#
- 2.Sc4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 1...Qh4
- 2.Sf3#
- 2.Sc4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 1...Qh6
- 2.Sf3#
- 2.Sc4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qf6#
- 1...Qh7
- 2.Sf3#
- 2.Sc4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qf6#
- 1...Qa8
- 2.Sf3#
- 2.Sc4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qf6#
- 1...Qb8
- 2.Qf6#
- 1...Qc8
- 2.Sf3#
- 2.Sc4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 1...Qd8
- 2.Sd7#
- 1...Qe8
- 2.Qf6#
- 1...Qf8
- 2.Qxf8#
- 1...Qg8
- 2.Sf3#
- 2.Sc4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qf6#
- 1...Bf1
- 2.Rdf3#
- 2.Rg4#
- 1...Bxd3
- 2.Rg4#
- 1...Bf3
- 2.Rdxf3#
- 1...Bg4
- 2.Rxg4#
- 1...Qxe5+
- Tries
- 1.Kc4?
- threat
- 2.Qd4#
- 1...Qc8+
- 2.Sc6#
- 1...Qg8+
- 2.Sf7#
- 1...Bxd3+
- 2.Sxd3#
- 1...Bf3
- 2.Rdxf3#
- 1...Bg4
- 2.Rxg4#
- 1...Qh1
- 2.Sf3#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qf6#
- 1...Qa8
- 2.Sf3#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qf6#
- 1...Qd8
- 2.Sd7#
- 1...Qxe5!
- threat
- 1.Qf8+?
- 1...Qf6
- 2.Qxf6#
- 1...Qxf8!
- 1...Qf6
- 1.Qd5?
- threat
- 2.Qe4#
- 1...Qxe5+
- 2.Qxe5#
- 1...Bxd3
- 2.Rg4#
- 2.Qf3#
- 1...Bf3
- 2.Rdxf3#
- 2.Qxf3#
- 1...Bg4
- 2.Rxg4#
- 1...Qh1
- 2.Qf7#
- 1...Qa8
- 2.Qf7#
- 1...Qd8!
- threat
- 1.Kc4?
- Keys
- 1.Kd5!
- threat
- 2.Qb4#
- 1...Qxe5+
- 2.Qxe5#
- 1...Qh1+
- 2.Sf3#
- 1...Qa8+
- 2.Sc6#
- 1...Qg8+
- 2.Sf7#
- 1...Bf3+
- 2.Rdxf3#
- 1...Bxd3
- 2.Sxd3#
- 1...Bg4
- 2.Rxg4#
- 1...Qb8
- 2.Qf6#
- 1...Qc8
- 2.Sf3#
- 2.Sc4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 1...Qd8
- 2.Sd7#
- 1...Qf8
- 2.Qxf8#
- threat
- 1.Kd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(D)::QAB1(E),XQ(c)
- Q(c);N_GUARD::QAR2(E),XQ(c)
- Q(c);N_GUARD,N_PINS(D)::QAR2(E)
- Q(c);N_PINS(D),P_PINQ(E)::QAB(E)+S(D)
- Q(c);N_GUARD,N_PINS(D)::QAR(E),XQ(c)
- B(a);N_GUARD,XR(A)::R1(B)
- B(a);N_GUARD::R1(A),XB(a)
- B(a);N_GUARD::R1(B),XB(a)
- Tries
- Try
- K(C);N_SPINS(D),P-FLIGHT,P_SPINR(A)
- Threat
- QAR2(E)
- Vars
- Q(c);CHECK,N_GUARD::QAB(E)+S(D)
- B(a);CHECK,XR(A)::QAB(E)+S(D),DCHECK,XB(a)
- B(a);N_PINR(A)::R1(A),XB(a)
- B(a);N_GUARD,N_PINR(A)::R1(B),XB(a)
- Q(c);N_GUARD::QAB(E)+S(D)
- Refutation
- Q(c);P_SPINQ(c),XS(D)
- Try
- Q(E);CHECK
- Vars
- Q(c);N_GUARD,P_SPINQ(c)::QAR2(E),XQ(c)
- Refutation
- Q(c);N_PINS(D),XQ(E)
- Try
- Q(E);
- Threat
- QAR1(E)
- Vars
- Q(c);CHECK,OGATE,XS(D)::QAB1(E),XQ(c)
- B(a);N_GUARD::R1(B),XB(a)
- Q(c);N_GUARD,N_PINS(D)::QAR(E)
- Refutation
- Q(c);N_PINS(D),P_PINQ(E)
- Try
- Actual
- K(C);N_SPINS(D),P-FLIGHT
- Threat
- QAR(E)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(D)::QAB1(E),XQ(c)
- Q(c);CHECK,N_GUARD::QAB(E)+S(D)
- B(a);CHECK,N_GUARD::R1(A),XB(a)
- B(a);XR(A)::QAB(E)+S(D),DCHECK,XB(a)
- B(a);N_GUARD::R1(B),XB(a)
- Q(c);N_GUARD::QAR2(E)
- Q(c);N_GUARD,P_PINQ(E)::QAB(E)+S(D)
- Q(c);N_GUARD::QAR(E),XQ(c)
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).