MESON Chess Problem Database
Problem Display
PID: 11908 (8/3pN1N1/2nPq1Q1/5p2/2B1k3/3pP2K/3P1R1B/4n3 w - - 0 1)
Knuppert, Hugo
1st Prize, KeyStip 08. Ty., 1973
#2
10 + 7
| 3753 | FIDE Album (1971-1973) | 1978 |
| 3364 | Solving in Style | 1985 |
SOLUTION
- SOUND
- Sets
- 1...Qxc4
- 2.Qxf5#
- 1...Qd5
- 2.Bxd5#
- 1...Qg8
- 2.Qxf5#
- 1...Qxd6
- 2.Qxf5#
- 1...Qf6
- 2.Bd5#
- 1...Qxg6
- 2.Bd5#
- 1...Qxe7
- 2.Qxf5#
- 1...Sc2
- 2.Qg2#
- 1...Sg2
- 2.Qxg2#
- 1...Se5
- 2.Rf4#
- 1...Qxc4
- Tries
- 1.Sexf5?
- threat
- 2.Qg4#
- 1...Qxf5+
- 2.Qxf5#
- 1...Qxc4
- 2.Se7#
- 1...Qxd6
- 2.Sxd6#
- 1...Qe5
- 2.Sg3#
- 1...Sg2
- 2.Qxg2#
- 1...Se5
- 2.Rf4#
- 1...Qxg6!
- threat
- 1.Sxe6?
- threat
- 2.Sc5#
- 2.Sg5#
- 2.Bd5#
- 2.Qxf5#
- 1...Sxe7
- 2.Sc5#
- 2.Sg5#
- 1...Sf3
- 2.Sc5#
- 2.Bd5#
- 2.Qxf5#
- 1...Sb4
- 2.Sc5#
- 2.Sg5#
- 2.Qxf5#
- 1...Sd4
- 2.Sc5#
- 2.Sg5#
- 2.Bd5#
- 1...dxe6!
- threat
- 1.Bxd3+?
- 1...Sxd3
- 2.Qg2#
- 1...Kxd3!
- 1...Sxd3
- 1.Rxf5?
- threat
- 2.Qg4#
- 1...Qxf5+
- 2.Qxf5#
- 1...Qxd6
- 2.Rf6#
- 1...Qxg6
- 2.Bd5#
- 1...Qe5
- 2.Rf4#
- 1...Sg2
- 2.Qxg2#
- 1...Se5!
- threat
- 1.Qg2+?
- 1...Sf3
- 2.Qxf3#
- 1...Sxg2!
- 1...Sf3
- 1.Qxe6+?
- 1...Se5
- 2.Bd5#
- 2.Rf4#
- 2.Qd5#
- 2.Qxf5#
- 2.Qxe5#
- 1...dxe6!
- 1...Se5
- 1.Sexf5?
- Keys
- 1.Sgxf5!
- threat
- 2.Qg4#
- 1...Qxf5+
- 2.Qxf5#
- 1...Qxd6
- 2.Sxd6#
- 1...Qxg6
- 2.Bd5#
- 1...Qe5
- 2.Sg3#
- 1...Qg8
- 2.Sg7#
- 1...Sg2
- 2.Qxg2#
- 1...Se5
- 2.Rf4#
- threat
- 1.Sgxf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- Q(f);N_GUARD,XB(F)::QAB1(H),XP(d)
- Q(f);N_GUARD::B(F),XQ(f)
- Q(f);N_GUARD::QAB1(H),XP(d)
- Q(f);N_GUARD,XP(G)::QAB1(H),XP(d)
- Q(f);N_GUARD::B(F)
- Q(f);N_GUARD,N_SPINP(d),XQ(H)::B(F)
- Q(f);N_GUARD,XS(I)::QAB1(H),XP(d)
- S(a);N_GUARD::QAB(H)
- S(a);N_GUARD::QAB(H),XS(a)
- S(e);SBLOCK::R1(B)
- Tries
- Try
- S(I);P_SPINS(I),XP(d)
- Threat
- QAR2(H)
- Vars
- Q(f);CHECK,OGATE,P_SPINQ(f),XS(I)::QAB1(H),XQ(f)
- Q(f);N_PINS(I),XB(F)::QAB(H)+S(I)
- Q(f);N_PINS(I),XP(G)::QAB(H)+S(I),DCHECK,XQ(f)
- Q(f);N_PINS(I),SBLOCK::QAB(H)+S(I),DCHECK
- S(a);N_GUARD::QAB(H),XS(a)
- S(e);SBLOCK::R1(B)
- Refutation
- Q(f);N_PINS(I),XQ(H)
- Try
- S(J);XQ(f)
- Threat
- DUALS(4)
- Refutation
- P(g);XS(J)
- Try
- B(F);CHECK,XP(b)
- Vars
- S(a);SBLOCK,XB(F)::QAB(H)
- Refutation
- K(c);S_FLIGHT,XB(F)
- Try
- R(B);P_SPINR(B),XP(d)
- Threat
- QAR2(H)
- Vars
- Q(f);CHECK,OGATE,P_SPINQ(f),XR(B)::QAB1(H),XQ(f)
- Q(f);N_PINR(B),XP(G)::QAB(H)+R(B)
- Q(f);N_GUARD,N_PINR(B),XQ(H)::B(F)
- Q(f);N_PINR(B),SBLOCK::QAB(H)+R(B),DCHECK
- S(a);N_GUARD::QAB(H),XS(a)
- Refutation
- S(e);
- Try
- Q(H);CHECK,N_PINP(d)
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAB1(H),XS(a)
- Refutation
- S(a);XQ(H)
- Try
- Q(H);CHECK,N_PINP(d),XQ(f)
- Refutation
- P(g);XQ(H)
- Try
- Actual
- S(J);P_SPINS(J),XP(d)
- Threat
- QAR2(H)
- Vars
- Q(f);CHECK,OGATE,P_SPINQ(f),XS(J)::QAB1(H),XQ(f)
- Q(f);N_PINS(J),XP(G)::QAB(H)+S(J),DCHECK,XQ(f)
- Q(f);N_GUARD,N_PINS(J),XQ(H)::B(F)
- Q(f);N_PINS(J),SBLOCK::QAB(H)+S(J),DCHECK
- Q(f);N_PINS(J)::QAB(H)+S(J)
- S(a);N_GUARD::QAB(H),XS(a)
- S(e);SBLOCK::R1(B)
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).