MESON Chess Problem Database
Problem Display
PID: 225821 (8/1p1pQ3/1B1p4/3P4/B1pPn3/K1R3NR/3kpn2/2N1b3 w - - 0 1)
Ulanov, Lev
Praca, 1994
#2
10 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kxc3
- 2.Sxe4#
- 1...Sd1
- 2.Sxe4#
- 1...Sh1
- 2.Sxe4#
- 1...Sd3
- 2.Sxe4#
- 1...Sxh3
- 2.Sxe4#
- 1...Sg4
- 2.Sxe4#
- 1...Sxc3
- 2.Qg5#
- 1...Sxg3
- 2.Qe3#
- 1...Sc5
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Kxc3
- Tries
- 1.Kb4?
- 1...Sxh3
- 2.Sxe4#
- 1...Sxc3
- 2.Qg5#
- 1...Sxg3
- 2.Qg5#
- 2.Qe3#
- 1...Sd1
- 2.Sxe4#
- 1...Sh1
- 2.Sxe4#
- 1...Sg4
- 2.Sxe4#
- 1...Sc5
- 2.Qg5#
- 2.Qxe2#
- 2.Qe3#
- 1...Sg5
- 2.Qxg5#
- 2.Qxe2#
- 2.Qe3#
- 1...Sf6
- 2.Qxe2#
- 2.Qe3#
- 1...Sd3+!
- 1...Sxh3
- 1.Sa2?
- 1...Sxh3
- 2.Sxe4#
- 1...Sxg3
- 2.Qg5#
- 2.Qe3#
- 1...Sd3
- 2.Sxe4#
- 1...Sd1
- 2.Sxe4#
- 1...Sh1
- 2.Sxe4#
- 1...Sg4
- 2.Sxe4#
- 1...Sc5
- 2.Qg5#
- 2.Qxe2#
- 2.Qe3#
- 1...Sg5
- 2.Qxg5#
- 2.Qxe2#
- 2.Qe3#
- 1...Sf6
- 2.Qxe2#
- 2.Qe3#
- 1...Sxc3!
- 1...Sxh3
- 1.Bb3?
- 1...Kxc3
- 2.Sxe4#
- 1...Sxh3
- 2.Sxe4#
- 1...Sxc3
- 2.Qg5#
- 1...Sxg3
- 2.Qe3#
- 1...Sd3
- 2.Sxe4#
- 1...Sd1
- 2.Sxe4#
- 1...Sh1
- 2.Sxe4#
- 1...Sg4
- 2.Sxe4#
- 1...Sc5
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...cxb3!
- 1...Kxc3
- 1.Qg5+?
- 1...Kxc3
- 2.Sgxe2#
- 2.Sxe4#
- 1...Sxg5!
- 1...Kxc3
- 1.Qxe4?
- threat
- 2.Qc2#
- 2.Qe3#
- 1...Kxc3
- 2.Ba5#
- 2.Qc2#
- 1...Sxe4
- 2.Sxe4#
- 1...Sd1
- 2.Rc2#
- 2.Qc2#
- 1...Sg4
- 2.Qc2#
- 1...Sd3!
- threat
- 1.Qe5?
- 1...Kxc3
- 2.Sxe4#
- 2.Ba5#
- 1...Sxh3
- 2.Sxe4#
- 1...Sxc3
- 2.Qf4#
- 2.Qg5#
- 1...Sxg3
- 2.Qe3#
- 1...Sd3
- 2.Sxe4#
- 1...Sd1
- 2.Sxe4#
- 1...Sh1
- 2.Sxe4#
- 1...Sg4
- 2.Sxe4#
- 1...Sc5
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...dxe5!
- 1...Kxc3
- 1.Qe6?
- 1...Kxc3
- 2.Sxe4#
- 1...Sxh3
- 2.Sxe4#
- 1...Sxc3
- 2.Qh6#
- 1...Sxg3
- 2.Qe3#
- 1...Sd3
- 2.Sxe4#
- 1...Sd1
- 2.Sxe4#
- 1...Sh1
- 2.Sxe4#
- 1...Sg4
- 2.Sxe4#
- 1...Sc5
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...dxe6!
- 1...Kxc3
- 1.Qe8?
- 1...Kxc3
- 2.Sxe4#
- 1...Sxh3
- 2.Sxe4#
- 1...Sxg3
- 2.Qe3#
- 1...Sd3
- 2.Sxe4#
- 1...Sd1
- 2.Sxe4#
- 1...Sh1
- 2.Sxe4#
- 1...Sg4
- 2.Sxe4#
- 1...Sc5
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Sxc3!
- 1...Kxc3
- 1.Kb4?
- Keys
- 1.Qh7!
- 1...Kxc3
- 2.Sxe4#
- 1...Sxh3
- 2.Sxe4#
- 1...Sxc3
- 2.Qh6#
- 1...Sxg3
- 2.Qc2#
- 1...Sd3
- 2.Sxe4#
- 1...Sd1
- 2.Sxe4#
- 1...Sh1
- 2.Sxe4#
- 1...Sg4
- 2.Sxe4#
- 1...Sc5
- 2.Qc2#
- 1...Sg5
- 2.Qc2#
- 1...Sf6
- 2.Qc2#
- 1...Kxc3
- 1.Qh7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(b);S_FLIGHT,XR(C)::R(E)+S(D),DCHECK,XS(f)
- S(d);N_GUARD::S(D),XS(f)
- S(d);N_GUARD,XR(E)::S(D),XS(f)
- S(f);N_GUARD,SBLOCK,XR(C)::QAB(J)
- S(f);OGATE,XS(D)::QAB1(J)
- S(f);OGATE::QAB1(J)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- S(d);N_GUARD,XR(E)::S(D),XS(f)
- S(f);N_GUARD,XR(C)::QAB(J)
- S(d);N_GUARD::S(D),XS(f)
- Refutation
- S(d);CHECK
- Try
- S(A);
- Vars
- S(d);N_GUARD,XR(E)::S(D),XS(f)
- S(d);N_GUARD::S(D),XS(f)
- Refutation
- S(f);XR(C)
- Try
- B(F);
- Vars
- K(b);S_FLIGHT,XR(C)::R(E)+S(D),DCHECK,XS(f)
- S(d);N_GUARD,XR(E)::S(D),XS(f)
- S(f);N_GUARD,SBLOCK,XR(C)::QAB(J)
- S(f);OGATE,XS(D)::QAB1(J)
- S(d);N_GUARD::S(D),XS(f)
- S(f);OGATE::QAB1(J)
- Refutation
- P(e);XB(F)
- Try
- Q(J);CHECK
- Refutation
- S(f);XQ(J)
- Try
- Q(J);XS(f)
- Threat
- DUALS(2)
- Vars
- S(d);XQ(J)::S(D),XS(d)
- S(d);::QAR1(J)
- Refutation
- S(d);
- Try
- Q(J);
- Vars
- S(d);N_GUARD,XR(E)::S(D),XS(f)
- S(f);OGATE,XS(D)::QAB1(J)
- S(d);N_GUARD::S(D),XS(f)
- S(f);OGATE::QAB1(J)
- Refutation
- P(g);XQ(J)
- Try
- Q(J);
- Vars
- K(b);S_FLIGHT,XR(C)::R(E)+S(D),DCHECK,XS(f)
- S(d);N_GUARD,XR(E)::S(D),XS(f)
- S(f);N_GUARD,SBLOCK,XR(C)::QAB(J)
- S(f);OGATE,XS(D)::QAB1(J)
- S(d);N_GUARD::S(D),XS(f)
- S(f);OGATE::QAB1(J)
- Refutation
- P(i);XQ(J)
- Try
- Q(J);
- Vars
- K(b);S_FLIGHT,XR(C)::R(E)+S(D),DCHECK,XS(f)
- S(d);N_GUARD,XR(E)::S(D),XS(f)
- S(f);OGATE,XS(D)::QAB1(J)
- S(d);N_GUARD::S(D),XS(f)
- S(f);OGATE::QAB1(J)
- Refutation
- S(f);XR(C)
- Try
- Actual
- Q(J);
- Vars
- K(b);S_FLIGHT,XR(C)::R(E)+S(D),DCHECK,XS(f)
- S(d);N_GUARD,XR(E)::S(D),XS(f)
- S(f);N_GUARD,SBLOCK,XR(C)::QAB(J)
- S(f);OGATE,XS(D)::QAR1(J)
- S(d);N_GUARD::S(D),XS(f)
- S(f);OGATE::QAR1(J)
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).