MESON Chess Problem Database
Problem Display
PID: 220227 (1R6/4pq1p/2k1N2Q/1n2B3/BP6/nK1R1N2/3P4/8 w - - 0 1)
Kaps, Carl
Die Schwalbe, 1928
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Qh5
- 2.Sd8#
- 1...Qxe6+
- 2.Qxe6#
- 1...Qg6
- 2.Sd8#
- 1...Qe8
- 2.Sd8#
- 1...Qxf3
- 2.Sd8#
- 1...Qf4
- 2.Sd8#
- 1...Qf5
- 2.Sd8#
- 1...Qf6
- 2.Sd8#
- 1...Qg7
- 2.Sd8#
- 1...Qf8
- 2.Sd8#
- 1...Sb1
- 2.Bxb5#
- 1...Sc2
- 2.Bxb5#
- 1...Sc4
- 2.Sd8#
- 2.Bxb5#
- 1...Qh5
- Tries
- 1.Ka2?
- 1...Qxe6+
- 2.Qxe6#
- 1...Qxf3
- 2.Sd8#
- 1...Qh5
- 2.Sd8#
- 1...Qg6
- 2.Sd8#
- 1...Qe8
- 2.Sd8#
- 1...Qf4
- 2.Sd8#
- 1...Qf5
- 2.Sd8#
- 1...Qf6
- 2.Sd8#
- 1...Qg7
- 2.Sd8#
- 1...Qf8
- 2.Sd8#
- 1...Sb1
- 2.Bxb5#
- 1...Sc2
- 2.Bxb5#
- 1...Sc4
- 2.Sd8#
- 2.Bxb5#
- 1...Qg8!
- 1...Qxe6+
- 1.Kb2?
- threat
- 2.Sd8#
- 1...Qxe6
- 2.Qxe6#
- 1...Sc4+!
- threat
- 1.Se1?
- 1...Qxe6+
- 2.Qxe6#
- 1...Qh5
- 2.Sd8#
- 1...Qg6
- 2.Sd8#
- 1...Qe8
- 2.Sd8#
- 2.Qh1#
- 1...Qf1
- 2.Sd8#
- 1...Qf2
- 2.Sd8#
- 1...Qf3
- 2.Sd8#
- 1...Qf4
- 2.Sd8#
- 1...Qf5
- 2.Sd8#
- 1...Qf6
- 2.Sd8#
- 1...Qg7
- 2.Sd8#
- 1...Qf8
- 2.Sd8#
- 1...Sb1
- 2.Bxb5#
- 1...Sc2
- 2.Bxb5#
- 1...Sc4
- 2.Sd8#
- 2.Bxb5#
- 1...Qg8!
- 1...Qxe6+
- 1.Sg1?
- 1...Qxe6+
- 2.Qxe6#
- 1...Qh5
- 2.Sd8#
- 1...Qg6
- 2.Sd8#
- 1...Qe8
- 2.Sd8#
- 2.Qh1#
- 1...Qf1
- 2.Sd8#
- 1...Qf2
- 2.Sd8#
- 1...Qf3
- 2.Sd8#
- 1...Qf4
- 2.Sd8#
- 1...Qf5
- 2.Sd8#
- 1...Qf6
- 2.Sd8#
- 1...Qg7
- 2.Sd8#
- 1...Qf8
- 2.Sd8#
- 1...Sb1
- 2.Bxb5#
- 1...Sc2
- 2.Bxb5#
- 1...Sc4
- 2.Sd8#
- 2.Bxb5#
- 1...Qg8!
- 1...Qxe6+
- 1.Sh2?
- 1...Qxe6+
- 2.Qxe6#
- 1...Qh5
- 2.Sd8#
- 1...Qg6
- 2.Sd8#
- 1...Qe8
- 2.Sd8#
- 1...Qf1
- 2.Sd8#
- 1...Qf2
- 2.Sd8#
- 1...Qf3
- 2.Sd8#
- 1...Qf4
- 2.Sd8#
- 1...Qf5
- 2.Sd8#
- 1...Qf6
- 2.Sd8#
- 1...Qg7
- 2.Sd8#
- 1...Qf8
- 2.Sd8#
- 1...Sb1
- 2.Bxb5#
- 1...Sc2
- 2.Bxb5#
- 1...Sc4
- 2.Sd8#
- 2.Bxb5#
- 1...Qg8!
- 1...Qxe6+
- 1.Sd4+?
- 1...Kd7
- 2.Rd8#
- 1...Kd5!
- 1...Kd7
- 1.Sh4?
- 1...Qxe6+
- 2.Qxe6#
- 1...Qh5
- 2.Sd8#
- 1...Qg6
- 2.Sd8#
- 1...Qe8
- 2.Sd8#
- 1...Qf1
- 2.Sd8#
- 1...Qf2
- 2.Sd8#
- 1...Qf3
- 2.Sd8#
- 1...Qf4
- 2.Sd8#
- 1...Qf5
- 2.Sd8#
- 1...Qf6
- 2.Sd8#
- 1...Qg7
- 2.Sd8#
- 1...Qf8
- 2.Sd8#
- 1...Sb1
- 2.Bxb5#
- 1...Sc2
- 2.Bxb5#
- 1...Sc4
- 2.Sd8#
- 2.Bxb5#
- 1...Qg8!
- 1...Qxe6+
- 1.Bh2?
- threat
- 2.Se5#
- 1...Qxe6+
- 2.Qxe6#
- 1...Qxf3
- 2.Sd8#
- 1...Qh5
- 2.Sd8#
- 1...Qf5
- 2.Sd8#
- 1...Qf6
- 2.Sd8#
- 1...Qg7
- 2.Sd8#
- 1...Sc4
- 2.Sd8#
- 2.Bxb5#
- 1...Qf4!
- threat
- 1.Bg3?
- threat
- 2.Se5#
- 1...Qxe6+
- 2.Qxe6#
- 1...Qxf3
- 2.Sd8#
- 1...Qh5
- 2.Sd8#
- 1...Qf5
- 2.Sd8#
- 1...Qf6
- 2.Sd8#
- 1...Qg7
- 2.Sd8#
- 1...Sc4
- 2.Sd8#
- 2.Bxb5#
- 1...Qf4!
- threat
- 1.Bf4?
- threat
- 2.Se5#
- 1...Qxe6+
- 2.Qxe6#
- 1...Qh5
- 2.Sd8#
- 1...Qf5
- 2.Sd8#
- 1...Qf6
- 2.Sd8#
- 1...Qg7
- 2.Sd8#
- 1...Sc4
- 2.Sd8#
- 2.Bxb5#
- 1...Qxf4!
- threat
- 1.Bc7?
- threat
- 2.Se5#
- 2.Rb6#
- 1...Qxf3
- 2.Rb6#
- 1...Qh5
- 2.Rb6#
- 1...Qf4
- 2.Rb6#
- 1...Qf5
- 2.Rb6#
- 1...Qf6
- 2.Rb6#
- 1...Qg7
- 2.Rb6#
- 1...Sc4
- 2.Bxb5#
- 1...Qxe6+!
- threat
- 1.Rdd8?
- threat
- 2.Sd4#
- 1...Qxe6+
- 2.Qxe6#
- 1...Qf4
- 2.Sed4#
- 1...Sc2
- 2.Bxb5#
- 1...Qxf3+!
- threat
- 1.Qe3?
- threat
- 2.Rb6#
- 2.Qc5#
- 2.Qb6#
- 2.Qe4#
- 1...Qxf3
- 2.Sd8#
- 2.Rb6#
- 2.Qc5#
- 2.Qb6#
- 2.Qxf3#
- 1...Qg6
- 2.Sd8#
- 2.Rb6#
- 2.Qc5#
- 2.Qb6#
- 1...Qf4
- 2.Sd8#
- 2.Rb6#
- 2.Qc5#
- 2.Qb6#
- 1...Qf5
- 2.Sd8#
- 2.Rb6#
- 2.Qc5#
- 2.Qb6#
- 1...Sc4
- 2.Sd8#
- 2.Bxb5#
- 2.Qc5#
- 2.Qe4#
- 1...Qxe6+!
- threat
- 1.Qf4?
- threat
- 2.Qe4#
- 1...Qxf4
- 2.Sd8#
- 1...Qg6
- 2.Sd8#
- 1...Qf5
- 2.Sd8#
- 1...Qxe6+!
- threat
- 1.Qh4?
- threat
- 2.Qe4#
- 1...Qxf3
- 2.Sd8#
- 1...Qg6
- 2.Sd8#
- 1...Qf4
- 2.Sd8#
- 1...Qf5
- 2.Sd8#
- 1...Qxe6+!
- threat
- 1.Qg6?
- threat
- 2.Qe4#
- 1...Qxe6+
- 2.Qxe6#
- 1...Qxg6
- 2.Sd8#
- 1...Qxf3
- 2.Sd8#
- 2.Qe8#
- 1...Qf4
- 2.Sd8#
- 2.Qe8#
- 1...Qf5
- 2.Sd8#
- 2.Qe8#
- 1...hxg6!
- threat
- 1.Qxh7?
- threat
- 2.Qe4#
- 1...Qxf3
- 2.Sd8#
- 1...Qxh7
- 2.Sd8#
- 1...Qg6
- 2.Sd8#
- 1...Qf4
- 2.Sd8#
- 1...Qf5
- 2.Sd8#
- 1...Qxe6+!
- threat
- 1.Ka2?
- Keys
- 1.Sg5!
- 1...Qxe6+
- 2.Qxe6#
- 1...Qg8
- 2.Qh1#
- 1...Qh5
- 2.Sd8#
- 1...Qg6
- 2.Sd8#
- 1...Qe8
- 2.Sd8#
- 2.Qh1#
- 1...Qf1
- 2.Sd8#
- 1...Qf2
- 2.Sd8#
- 1...Qf3
- 2.Sd8#
- 1...Qf4
- 2.Sd8#
- 1...Qf5
- 2.Sd8#
- 1...Qf6
- 2.Sd8#
- 1...Qg7
- 2.Sd8#
- 2.Qh1#
- 1...Qf8
- 2.Sd8#
- 1...Sb1
- 2.Bxb5#
- 1...Sc2
- 2.Bxb5#
- 1...Sc4
- 2.Sd8#
- 2.Bxb5#
- 1...Qxe6+
- 1.Sg5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- Q(e);N_PINS(H)::QAR(I)+S(H),DCHECK
- Q(e);CHECK,OGATE,P_SPINQ(e),XS(H)::QAR2(I),XQ(e)
- Q(e);N_PINS(H)::S(H)
- Q(e);N_PINS(H),P_PINR(C),XS(D)::QAR(I)+S(H),DCHECK
- S(a);N_GUARD::B(E),XS(b)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- Q(e);CHECK,OGATE,P_SPINQ(e),XS(H)::QAR2(I),XQ(e)
- Q(e);N_PINS(H),XS(D)::QAR(I)+S(H),DCHECK
- Q(e);N_PINS(H)::QAR(I)+S(H),DCHECK
- Q(e);N_PINS(H)::S(H)
- S(a);N_GUARD::B(E),XS(b)
- Refutation
- Q(e);
- Try
- K(B);N_SPINS(H),P-FLIGHT
- Threat
- QAR(I)+S(H),DCHECK
- Vars
- Q(e);OGATE,P_SPINQ(e),XS(H)::QAR2(I),XQ(e)
- Refutation
- S(a);CHECK
- Try
- S(D);
- Vars
- Q(e);CHECK,OGATE,P_SPINQ(e),XS(H)::QAR2(I),XQ(e)
- Q(e);N_PINS(H)::QAR(I)+S(H),DCHECK
- Q(e);N_PINS(H)::S(H)
- Q(e);N_PINS(H),P_PINR(C)::QAR(I)+S(H),DCHECK
- S(a);N_GUARD::B(E),XS(b)
- Refutation
- Q(e);
- Try
- S(D);
- Vars
- Q(e);CHECK,OGATE,P_SPINQ(e),XS(H)::QAR2(I),XQ(e)
- Q(e);N_PINS(H)::QAR(I)+S(H),DCHECK
- Q(e);N_PINS(H)::S(H)
- Q(e);N_PINS(H),P_PINR(C)::QAR(I)+S(H),DCHECK
- S(a);N_GUARD::B(E),XS(b)
- Refutation
- Q(e);
- Try
- S(D);
- Vars
- Q(e);CHECK,OGATE,P_SPINQ(e),XS(H)::QAR2(I),XQ(e)
- Q(e);N_PINS(H)::QAR(I)+S(H),DCHECK
- Q(e);N_PINS(H)::S(H)
- Q(e);N_PINS(H),P_PINR(C)::QAR(I)+S(H),DCHECK
- S(a);N_GUARD::B(E),XS(b)
- Refutation
- Q(e);
- Try
- S(D);CHECK
- Vars
- K(c);S_FLIGHT::R1(J)
- Refutation
- K(c);N_PINS(H),N_SPINS(b),S_FLIGHT
- Try
- S(D);
- Vars
- Q(e);CHECK,OGATE,P_SPINQ(e),XS(H)::QAR2(I),XQ(e)
- Q(e);N_PINS(H)::QAR(I)+S(H),DCHECK
- Q(e);N_PINS(H)::S(H)
- Q(e);N_PINS(H),P_PINR(C)::QAR(I)+S(H),DCHECK
- S(a);N_GUARD::B(E),XS(b)
- Refutation
- Q(e);
- Try
- B(G);
- Threat
- S(D)
- Vars
- Q(e);CHECK,OGATE,P_SPINQ(e),XS(H)::QAR2(I),XQ(e)
- Q(e);N_PINS(H),P_PINR(C),XS(D)::QAR(I)+S(H),DCHECK
- Q(e);N_PINS(H)::QAR(I)+S(H),DCHECK
- Q(e);N_PINS(H)::S(H)
- Refutation
- Q(e);N_PINS(H)
- Try
- B(G);
- Threat
- S(D)
- Vars
- Q(e);CHECK,OGATE,P_SPINQ(e),XS(H)::QAR2(I),XQ(e)
- Q(e);N_PINS(H),P_PINR(C),XS(D)::QAR(I)+S(H),DCHECK
- Q(e);N_PINS(H)::QAR(I)+S(H),DCHECK
- Q(e);N_PINS(H)::S(H)
- Refutation
- Q(e);N_PINS(H)
- Try
- B(G);
- Threat
- S(D)
- Vars
- Q(e);CHECK,OGATE,P_SPINQ(e),XS(H)::QAR2(I),XQ(e)
- Q(e);N_PINS(H)::QAR(I)+S(H),DCHECK
- Q(e);N_PINS(H)::S(H)
- Refutation
- Q(e);N_PINS(H),XB(G)
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- Q(e);N_PINS(H),P_PINR(C),XS(D)::R1(J)
- Q(e);N_PINS(H)::R1(J)
- S(a);N_GUARD,N_PINS(H)::B(E),XS(b)
- Refutation
- Q(e);CHECK,P_SPINQ(e),XS(H)
- Try
- R(C);
- Threat
- S(D)
- Vars
- Q(e);CHECK,OGATE,P_SPINQ(e),XS(H)::QAR2(I),XQ(e)
- Q(e);N_PINS(H)::QAR(I)+S(H),DCHECK
- S(a);N_GUARD::B(E),XS(b)
- Refutation
- Q(e);CHECK,N_PINS(H),XS(D)
- Try
- Q(I);
- Threat
- DUALS(4)
- Refutation
- Q(e);CHECK,XS(H)
- Try
- Q(I);
- Threat
- QAB(I)
- Vars
- Q(e);N_PINS(H),XQ(I)::S(H)
- Q(e);N_PINS(H)::S(H)
- Refutation
- Q(e);CHECK,XS(H)
- Try
- Q(I);
- Threat
- QAB(I)
- Vars
- Q(e);N_PINS(H),P_PINR(C),XS(D)::S(H)
- Q(e);N_PINS(H)::S(H)
- Refutation
- Q(e);CHECK,XS(H)
- Try
- Q(I);
- Threat
- QAB(I)
- Vars
- Q(e);CHECK,OGATE,P_SPINQ(e),XS(H)::QAR2(I),XQ(e)
- Q(e);N_PINS(H),XQ(I)::S(H)
- Refutation
- P(f);XQ(I)
- Try
- Q(I);XP(f)
- Threat
- QAB(I)
- Vars
- Q(e);N_PINS(H),P_PINR(C),XS(D)::S(H)
- Q(e);N_PINS(H),XQ(I)::S(H)
- Q(e);N_PINS(H)::S(H)
- Refutation
- Q(e);CHECK,XS(H)
- Try
- Actual
- S(D);
- Vars
- Q(e);CHECK,OGATE,P_SPINQ(e),XS(H)::QAR2(I),XQ(e)
- Q(e);N_GUARD::QAB(I)
- Q(e);N_PINS(H)::QAR(I)+S(H),DCHECK
- Q(e);N_PINS(H)::S(H)
- Q(e);N_PINS(H),P_PINR(C)::QAR(I)+S(H),DCHECK
- S(a);N_GUARD::B(E),XS(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).