MESON Chess Problem Database
Problem Display
PID: 187548 (2Q5/7q/3PR2p/pp1k3r/1n1PN3/2P4n/1N6/1K5B w - - 0 1)
Ahues, Herbert Siegfried Oskar
harmonie-aktiv, 2014
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Qxe4+
- 2.Bxe4#
- 1...Qg8
- 2.Sg3#
- 2.Sg5#
- 2.Sf6#
- 1...Qa7
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 1...Qb7
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 1...Qc7
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 1...Qd7
- 2.Sc5#
- 2.Sg5#
- 1...Qe7
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qg7
- 2.Sg3#
- 2.Sg5#
- 2.Sf6#
- 1...Qh8
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 1...Rh4
- 2.Re5#
- 1...Re5
- 2.Rxe5#
- 1...Rf5
- 2.Sf6#
- 1...Sg5
- 2.Re5#
- 1...Sc2
- 2.Sf6#
- 1...Sd3
- 2.Sf6#
- 1...Qxe4+
- Tries
- 1.Ka1?
- threat
- 2.Sf6#
- 1...Qxe4
- 2.Bxe4#
- 1...Qd7
- 2.Sc5#
- 2.Sg5#
- 1...Sc2+!
- threat
- 1.Sd3?
- threat
- 2.Sf6#
- 1...Qxe4
- 2.Bxe4#
- 1...Qc7
- 2.Sd2#
- 1...Qd7
- 2.Sg5#
- 1...Sc6!
- threat
- 1.Sa4?
- threat
- 2.Sb6#
- 1...Qxe4+
- 2.Bxe4#
- 1...Qc7
- 2.Sd2#
- 1...Qd7
- 2.Sg5#
- 1...Qa7
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sg5#
- 2.Sf6#
- 1...Qb7
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sg5#
- 2.Sf6#
- 1...bxa4!
- threat
- 1.Sc4?
- threat
- 2.Se3#
- 2.Sb6#
- 1...Qxe4+
- 2.Bxe4#
- 1...Qc7
- 2.Sed2#
- 1...Qd7
- 2.Sg5#
- 1...Qa7
- 2.Se3#
- 2.Sed2#
- 2.Sf2#
- 2.Sg3#
- 2.Sg5#
- 2.Sf6#
- 1...Qb7
- 2.Se3#
- 2.Sed2#
- 2.Sf2#
- 2.Sg3#
- 2.Sg5#
- 2.Sf6#
- 1...Sc2
- 2.Sb6#
- 2.Sf6#
- 1...bxc4!
- threat
- 1.Rg6?
- threat
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Qc5#
- 1...Qc7
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 1...Qa7
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 1...Qe7
- 2.Qc5#
- 1...Qf7
- 2.Qc5#
- 1...Rh4
- 2.Qc5#
- 1...Re5
- 2.Qc5#
- 1...Rf5
- 2.Qc5#
- 1...Rg5
- 2.Sg3#
- 2.Sxg5#
- 2.Qc5#
- 1...Sg1
- 2.Qc5#
- 1...Sf2
- 2.Qc5#
- 1...Sf4
- 2.Qc5#
- 1...Sg5
- 2.Qc5#
- 1...Sd3
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 1...Sa6
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 1...Sc6
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Qe6#
- 1...Qxg6!
- threat
- 1.c4+?
- 1...bxc4
- 2.Qxc4#
- 1...Kxd4!
- 1...bxc4
- 1.Ka1?
- Keys
- 1.Sd1!
- threat
- 2.Se3#
- 1...Qxe4+
- 2.Bxe4#
- 1...Qc7
- 2.Sd2#
- 1...Qd7
- 2.Sg5#
- 1...Sc2
- 2.Sf6#
- threat
- 1.Sd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- Q(h);CHECK,OGATE,P_SPINQ(h),XS(F)::B(B),XQ(h)
- Q(h);N_PINS(F)::B(B)+S(F),DCHECK
- R(f);N_GUARD::R1(H)
- R(f);N_GUARD::R1(H),XR(f)
- R(f);N_PINS(F)::B(B)+S(F),DCHECK
- S(a);S_CUTR(f)::R1(H)
- S(b);N_PINS(F)::B(B)+S(F),DCHECK
- Tries
- Try
- K(A);N_SPINS(F),P-FLIGHT
- Threat
- B(B)+S(F),DCHECK
- Vars
- Q(h);OGATE,P_SPINQ(h),XS(F)::B(B),XQ(h)
- Refutation
- S(b);CHECK
- Try
- S(C);N_SPINS(F)
- Threat
- B(B)+S(F),DCHECK
- Vars
- Q(h);OGATE,P_PINS(C),P_SPINQ(h),XS(F)::B(B),XQ(h)
- Q(h);N_GUARD::B(B)+S(F)
- Refutation
- S(b);
- Try
- S(C);
- Threat
- S(C)
- Vars
- Q(h);CHECK,OGATE,P_SPINQ(h),XS(F)::B(B),XQ(h)
- Q(h);N_PINS(F)::B(B)+S(F)
- Refutation
- P(d);XS(C)
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- Q(h);CHECK,OGATE,P_SPINQ(h),XS(F)::B(B),XQ(h)
- Q(h);N_PINS(F)::B(B)+S(F)
- Refutation
- P(d);XS(C)
- Try
- R(H);N_SPINS(F)
- Threat
- DUALS(6)
- Vars
- Q(h);::QAR1(I)
- R(f);::QAR1(I)
- S(a);::QAR1(I)
- Refutation
- Q(h);P_PINS(F),XR(H)
- Try
- P(D);CHECK
- Vars
- P(d);OGATE,XP(D)::QAB1(I),XP(d)
- Refutation
- K(e);P-FLIGHT,XP(E)
- Try
- Actual
- S(C);
- Threat
- S(C)
- Vars
- Q(h);CHECK,OGATE,P_SPINQ(h),XS(F)::B(B),XQ(h)
- Q(h);N_PINS(F)::B(B)+S(F)
- S(b);N_PINS(F)::B(B)+S(F),DCHECK
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).