MESON Chess Problem Database
Problem Display
PID: 161550 (8/5p2/b1n2N2/2P1k1K1/4P2p/1Qprn2B/1bN1RB2/8 w - - 0 1)
Albrecht, Hermann
Die Schwalbe, 1949
#2
9 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Sd1
- 2.Sg4#
- 1...Sf1
- 2.Sg4#
- 1...Sxc2
- 2.Sg4#
- 1...Sg2
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sd5
- 2.Sd7#
- 1...Sf5
- 2.Sg4#
- 1...Sd4
- 2.Qb8#
- 1...Sd1
- Tries
- 1.Sxe3?
- threat
- 2.Seg4#
- 1...Kd4
- 2.Qd5#
- 1...Rxe3
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...Bc4
- 2.Sxc4#
- 1...Bc8
- 2.Sc4#
- 1...Bc1!
- threat
- 1.Sd4?
- threat
- 2.Sf3#
- 2.Sxc6#
- 1...Kxd4
- 2.Qd5#
- 1...Sxd4
- 2.Qb8#
- 1...Bb5
- 2.Sf3#
- 1...Bb7
- 2.Sf3#
- 1...Sd1
- 2.Sxc6#
- 2.Sg4#
- 2.Sd7#
- 2.Qd5#
- 1...Sf1
- 2.Sxc6#
- 2.Sg4#
- 2.Sd7#
- 2.Qd5#
- 1...Sc2
- 2.Sxc6#
- 2.Sg4#
- 2.Sd7#
- 2.Qd5#
- 1...Sg2
- 2.Sxc6#
- 2.Sg4#
- 2.Sd7#
- 2.Qd5#
- 1...Sc4
- 2.Sxc6#
- 2.Sg4#
- 2.Sd7#
- 1...Sg4
- 2.Sxc6#
- 2.Sxg4#
- 2.Sd7#
- 2.Qd5#
- 1...Sd5
- 2.Sxc6#
- 2.Sg4#
- 2.Sd7#
- 2.Qxd5#
- 1...Sf5
- 2.Sxc6#
- 2.Sg4#
- 2.Sd7#
- 2.Qd5#
- 1...Sb4
- 2.Sf3#
- 1...Sa5
- 2.Sf3#
- 1...Sa7
- 2.Sf3#
- 1...Se7
- 2.Sf3#
- 1...Sb8
- 2.Sf3#
- 1...Sd8
- 2.Sf3#
- 1...Rxd4!
- threat
- 1.Sg4+?
- 1...Kxe4
- 2.Bg2#
- 1...Sxg4!
- 1...Kxe4
- 1.Sd7+?
- 1...Kxe4
- 2.Bg2#
- 1...Rxd7!
- 1...Kxe4
- 1.Bg1?
- threat
- 2.Bh2#
- 1...Sxc2
- 2.Sg4#
- 1...Sd1
- 2.Sg4#
- 1...Sf1
- 2.Sg4#
- 1...Sg2
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sd5
- 2.Sd7#
- 1...Sf5
- 2.Sg4#
- 1...Sc4!
- threat
- 1.Bxe3?
- threat
- 2.Bf4#
- 1...Rxe3
- 2.Qd5#
- 1...Bc1!
- threat
- 1.Qd5+?
- 1...Sxd5
- 2.Sd7#
- 1...Rxd5!
- 1...Sxd5
- 1.Qb8+?
- 1...Rd6
- 2.Qxd6#
- 1...Sxb8!
- 1...Rd6
- 1.Sxe3?
- Keys
- 1.Se1!
- threat
- 2.Sf3#
- 1...Kd4
- 2.Qd5#
- 1...Sd1
- 2.Sg4#
- 1...Sf1
- 2.Sg4#
- 1...Sc2
- 2.Sg4#
- 1...Sg2
- 2.Sg4#
- 1...Sc4
- 2.Sxd3#
- 1...Sg4
- 2.Sxg4#
- 1...Sd5
- 2.Sd7#
- 1...Sf5
- 2.Sg4#
- 1...Sd4
- 2.Qb8#
- threat
- 1.Se1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(d);N_GUARD::S(I)
- S(d);N_GUARD,XS(A)::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(d);S_CUTR(c)::S(I)
- S(h);N_GUARD,S_CUTR(c)::QAB(D)
- Tries
- Try
- S(A);XS(d)
- Threat
- S(A)
- Vars
- K(f);S_FLIGHT::QAR1(D)
- R(c);N_GUARD,XS(A)::QAR1(D)
- R(c);N_GUARD::QAR1(D),XR(c)
- B(g);N_GUARD::S(A),XB(g)
- B(g);N_GUARD::S(A)
- Refutation
- B(a);P_PINS(A)
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- K(f);P_SPINS(d),S_FLIGHT,XS(A)::QAR1(D)
- S(h);N_GUARD,SBLOCK,XS(A)::QAB(D)
- B(g);::S(A)
- S(h);::S(A)
- Refutation
- R(c);XS(A)
- Try
- S(I);CHECK
- Vars
- K(f);P-FLIGHT,P_SPINS(d),XP(F)::B(E)
- Refutation
- S(d);XS(I)
- Try
- S(I);CHECK
- Vars
- K(f);P-FLIGHT,P_SPINS(d),XP(F)::B(E)
- Refutation
- R(c);XS(I)
- Try
- B(C);
- Threat
- B(C)
- Vars
- S(d);N_GUARD,XS(A)::S(I)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(d);S_CUTR(c)::S(I)
- Refutation
- S(d);
- Try
- B(C);XS(d)
- Threat
- B(C)
- Vars
- R(c);N_GUARD,XB(C)::QAR1(D)
- Refutation
- B(a);P_PINB(C)
- Try
- Q(D);CHECK
- Vars
- S(d);XQ(D)::S(I)
- Refutation
- R(c);XQ(D)
- Try
- Q(D);CHECK
- Vars
- R(c);N_GUARD,P_SPINR(c)::QAB1(D),XR(c)
- Refutation
- S(h);XQ(D)
- Try
- Actual
- S(A);
- Threat
- S(A)
- Vars
- K(f);P_SPINS(d),S_FLIGHT::QAR1(D)
- S(d);N_GUARD::S(I)
- S(d);S_CUTB(g)::S(A),XR(c)
- S(d);N_GUARD::S(I),XS(d)
- S(d);S_CUTR(c)::S(I)
- S(h);N_GUARD,SBLOCK,S_CUTR(c)::QAB(D)
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).