MESON Chess Problem Database
Problem Display
PID: 145219 (2Q3KB/1p2Rp1p/3n4/2p2P2/2RN1k1P/p7/qp3P1n/1bNB4 w - - 0 1)
Latzel, Gerhard Paul
Die Schwalbe, 1947
#2
11 + 11
| 14868 | Pirnie Collection | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Bd3
- 2.Sxd3#
- 1...Be4
- 2.Be5#
- 1...Bxf5
- 2.Se6#
- 1...Sf3
- 2.Sde2#
- 1...Sg4
- 2.Sce2#
- 1...Se4
- 2.Be5#
- 1...Sxf5
- 2.Se6#
- 1...Bd3
- Tries
- 1.Sc2+?
- 1...Sxc4
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 2.Be5#
- 2.Rcxe4#
- 2.Rexe4#
- 1...Qxc4!
- 1...Sxc4
- 1.Sdb3+?
- 1...Be4
- 2.Sd3#
- 2.Be5#
- 1...Se4
- 2.Be5#
- 1...Sxc4!
- 1...Be4
- 1.Bf3?
- threat
- 2.Sce2#
- 2.Be5#
- 1...Qxc4
- 2.Be5#
- 1...Sxf3
- 2.Sde2#
- 1...Sxc4
- 2.Sce2#
- 1...bxc1Q
- 2.Be5#
- 1...bxc1S
- 2.Be5#
- 1...bxc1B
- 2.Be5#
- 1...bxc1R
- 2.Be5#
- 1...Bd3
- 2.Sxd3#
- 2.Be5#
- 1...Sg4
- 2.Sce2#
- 1...f6
- 2.Sce2#
- 1...cxd4!
- threat
- 1.Bh5?
- threat
- 2.Sce2#
- 2.Sde2#
- 1...Sxc8
- 2.Sce2#
- 1...bxc1Q
- 2.Se2#
- 1...bxc1S
- 2.Se2#
- 1...bxc1B
- 2.Se2#
- 1...bxc1R
- 2.Se2#
- 1...cxd4
- 2.Se2#
- 1...Bd3
- 2.Sxd3#
- 2.Sde2#
- 1...Sg4
- 2.Sce2#
- 1...Qxc4!
- threat
- 1.Bf6?
- threat
- 2.Bg5#
- 1...Sf3
- 2.Sde2#
- 1...Se4
- 2.Be5#
- 1...h6!
- threat
- 1.Qe6?
- threat
- 2.Qe3#
- 2.Qe5#
- 2.Qxd6#
- 2.Qh6#
- 1...Sxc4
- 2.Qh6#
- 1...Sxf5
- 2.Qe5#
- 1...bxc1Q
- 2.Qe5#
- 2.Qxd6#
- 2.Qh6#
- 1...bxc1B
- 2.Qe5#
- 2.Qxd6#
- 2.Qh6#
- 1...cxd4
- 2.Qe5#
- 1...Sf3
- 2.Sde2#
- 1...Be4
- 2.Be5#
- 2.Qe5#
- 2.Qxd6#
- 2.Qh6#
- 1...Qb3
- 2.Qe5#
- 2.Qxd6#
- 2.Qh6#
- 1...Sf1
- 2.Qe5#
- 2.Qxd6#
- 2.Qh6#
- 1...Sg4
- 2.Sce2#
- 1...Se4
- 2.Be5#
- 2.Qe5#
- 1...Sb5
- 2.Qe3#
- 2.Qe5#
- 2.Qh6#
- 1...Sc8
- 2.Qe3#
- 2.Qe5#
- 2.Qh6#
- 1...Se8
- 2.Qe3#
- 2.Qe5#
- 2.Qh6#
- 1...f6
- 2.Qe3#
- 2.Qxd6#
- 1...h6
- 2.Qe3#
- 2.Qe5#
- 2.Qxd6#
- 2.Qxh6#
- 1...fxe6!
- threat
- 1.Qxc5?
- threat
- 2.Se6#
- 2.Qxd6#
- 2.Qe5#
- 1...Qxc4
- 2.Qxd6#
- 2.Qe5#
- 1...Sxf5
- 2.Se6#
- 2.Qe5#
- 1...Sf3
- 2.Sde2#
- 2.Se6#
- 1...Be4
- 2.Be5#
- 2.Qxd6#
- 2.Qe5#
- 1...Sg4
- 2.Sce2#
- 2.Se6#
- 1...Se4
- 2.Be5#
- 2.Qe5#
- 1...Sb5
- 2.Se6#
- 2.Qe5#
- 1...Sc8
- 2.Se6#
- 2.Qe5#
- 1...Se8
- 2.Se6#
- 2.Qe5#
- 1...f6
- 2.Se6#
- 2.Qxd6#
- 1...Sxc4!
- threat
- 1.Sc2+?
- Keys
- 1.Bg7!
- threat
- 2.Bh6#
- 1...Sxf5
- 2.Se6#
- 1...Sf3
- 2.Sde2#
- 1...Sg4
- 2.Sce2#
- 1...Se4
- 2.Be5#
- 1...h6
- 2.Bxh6#
- threat
- 1.Bg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- B(a);N_GUARD::S(A),XB(a)
- B(a);SBLOCK::B(K)
- B(a);SBLOCK,XP(G)::R(D)+S(E),DCHECK
- S(d);SBLOCK::R(D)+S(E),DCHECK
- S(d);SBLOCK::S(A)
- S(h);SBLOCK::B(K)
- S(h);SBLOCK,XP(G)::R(D)+S(E),DCHECK
- Tries
- Try
- S(E);CHECK
- Vars
- S(h);XR(D)::S(A)
- Refutation
- Q(b);XR(D)
- Try
- S(E);CHECK
- Vars
- S(h);P_SPINS(h)::B(K)
- Refutation
- S(h);XR(D)
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- Q(b);XR(D)::B(K)
- S(d);SBLOCK,XB(B)::R(D)+S(E),DCHECK
- S(h);XR(D)::S(A)
- P(c);XS(A)::B(K)
- S(d);::S(A)
- P(j);P_PINR(D)::S(A)
- Refutation
- P(g);P_SPINP(g),XS(E)
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- S(h);XQ(I)::S(A)
- P(c);XS(A)::R(D)+S(E),DCHECK
- P(g);P_SPINP(g),XS(E)::S(A)
- S(d);::S(A)
- Refutation
- Q(b);XR(D)
- Try
- B(K);
- Threat
- B(K)
- Vars
- S(d);SBLOCK::R(D)+S(E),DCHECK
- S(h);SBLOCK::B(K)
- Refutation
- P(k);
- Try
- Q(I);
- Threat
- DUALS(4)
- Vars
- S(h);XR(D)::QAB(I)
- S(h);XP(G)::QAB1(I)
- P(g);P_SPINP(g),XS(E)::QAB1(I)
- S(d);SBLOCK::R(D)+S(E),DCHECK
- S(d);SBLOCK::S(A)
- Refutation
- P(j);XQ(I)
- Try
- Q(I);XP(g)
- Threat
- DUALS(3)
- Refutation
- S(h);XR(D)
- Try
- Actual
- B(K);
- Threat
- B(K)
- Vars
- S(h);SBLOCK,XP(G)::R(D)+S(E),DCHECK
- S(d);SBLOCK::R(D)+S(E),DCHECK
- S(d);SBLOCK::S(A)
- S(h);SBLOCK::B(K)
- P(k);::B(K),XP(k)
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).