MESON Chess Problem Database
Problem Display
PID: 233794 (B1b1N3/Qn1n4/4pp2/3r4/2PBk1P1/2p1PN2/4K3/8 w - - 0 1)
Schreiber, Kurt
Freie Presse, 1964
#2
9 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxd4
- 2.Qxd4#
- 1...Ra5
- 2.Sd6#
- 1...Rb5
- 2.Sd6#
- 1...Rc5
- 2.Sd6#
- 1...Re5
- 2.Sd6#
- 1...Rf5
- 2.Sd6#
- 1...Rg5
- 2.Sd6#
- 1...Rh5
- 2.Sd6#
- 1...Rd6
- 2.Sxd6#
- 1...Sa5
- 2.Sd6#
- 1...Sbc5
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sd8
- 2.Sd6#
- 1...Sdc5
- 2.Sxf6#
- 1...Se5
- 2.Sxf6#
- 1...Sb6
- 2.Sxf6#
- 1...Sb8
- 2.Sxf6#
- 1...Sf8
- 2.Sxf6#
- 1...c2
- 2.Sd2#
- 1...f5
- 2.Sg5#
- 1...Rxd4
- Tries
- 1.Sg5+?
- 1...Rxg5
- 2.Sd6#
- 1...fxg5!
- 1...Rxg5
- 1.Qb6?
- 1...Rxd4
- 2.Qxd4#
- 1...Sxb6
- 2.Sxf6#
- 1...c2
- 2.Sd2#
- 1...Ra5
- 2.Sd6#
- 1...Rb5
- 2.Sd6#
- 1...Rc5
- 2.Sd6#
- 1...Re5
- 2.Sd6#
- 1...Rf5
- 2.Sd6#
- 1...Rg5
- 2.Sd6#
- 1...Rh5
- 2.Sd6#
- 1...Rd6
- 2.Sxd6#
- 1...Sa5
- 2.Sd6#
- 1...Sbc5
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sd8
- 2.Sd6#
- 1...Sdc5
- 2.Sxf6#
- 1...Se5
- 2.Sxf6#
- 1...Sb8
- 2.Sxf6#
- 1...Sf8
- 2.Sxf6#
- 1...f5
- 2.Sg5#
- 1...e5!
- 1...Rxd4
- 1.Qb8?
- threat
- 2.Qf4#
- 1...Sxb8
- 2.Sxf6#
- 1...Re5
- 2.Sd6#
- 1...Rf5
- 2.Sd6#
- 1...Rd6
- 2.Sxd6#
- 1...Sd6
- 2.Sxd6#
- 1...Se5
- 2.Sxf6#
- 1...e5!
- threat
- 1.Qa2?
- threat
- 2.Qc2#
- 1...c2
- 2.Sd2#
- 2.Qxc2#
- 1...Sbc5
- 2.Sd6#
- 1...Sdc5
- 2.Sxf6#
- 1...Se5
- 2.Sxf6#
- 1...Rxd4!
- threat
- 1.Qa4?
- threat
- 2.Qc2#
- 1...c2
- 2.Sd2#
- 2.Qxc2#
- 1...Sbc5
- 2.Sd6#
- 1...Sdc5
- 2.Sxf6#
- 1...Se5
- 2.Sxf6#
- 1...Rxd4!
- threat
- 1.Qa5?
- 1...Rxa5
- 2.Sd6#
- 1...Sxa5
- 2.Sd6#
- 1...c2
- 2.Sd2#
- 1...Rb5
- 2.Sd6#
- 1...Rc5
- 2.Sd6#
- 1...Re5
- 2.Sd6#
- 1...Rf5
- 2.Sd6#
- 1...Rg5
- 2.Sd6#
- 1...Rh5
- 2.Sd6#
- 1...Rd6
- 2.Sxd6#
- 1...Sbc5
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sd8
- 2.Sd6#
- 1...Sdc5
- 2.Sxf6#
- 1...Se5
- 2.Sxf6#
- 1...Sb6
- 2.Sxf6#
- 1...Sb8
- 2.Sxf6#
- 1...Sf8
- 2.Sxf6#
- 1...e5
- 2.Qxd5#
- 1...f5
- 2.Sg5#
- 1...Rxd4!
- 1...Rxa5
- 1.Sg5+?
- Keys
- 1.Qc5!
- 1...Rxd4
- 2.Qxd4#
- 1...Rxc5
- 2.Sd6#
- 1...Sbxc5
- 2.Sd6#
- 1...Sdxc5
- 2.Sxf6#
- 1...c2
- 2.Sd2#
- 1...Re5
- 2.Sd6#
- 1...Rf5
- 2.Sd6#
- 1...Rg5
- 2.Sd6#
- 1...Rh5
- 2.Sd6#
- 1...Rd6
- 2.Sxd6#
- 1...Sa5
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sd8
- 2.Sd6#
- 1...Se5
- 2.Sxf6#
- 1...Sb6
- 2.Sxf6#
- 1...Sb8
- 2.Sxf6#
- 1...Sf8
- 2.Sxf6#
- 1...e5
- 2.Qxd5#
- 1...f5
- 2.Sg5#
- 1...Rxd4
- 1.Qc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- R(c);OGATE,P_SPINS(f),XB(E)::QAR1(G),XR(c)
- R(c);N_GUARD,P_SPINS(f)::S(I)
- R(c);N_GUARD,P_SPINS(f)::S(I),XR(c)
- S(f);N_GUARD,P_SPINR(c)::S(I)
- S(f);N_GUARD,P_SPINR(c)::S(I),XS(f)
- S(g);N_GUARD::S(I),XP(e)
- P(a);N_GUARD::S(C)
- P(e);N_GUARD,S_CUTR(c)::S(C)
- Tries
- Try
- S(C);CHECK
- Vars
- R(c);P_SPINS(f),XS(C)::S(I)
- Refutation
- P(e);XS(C)
- Try
- Q(G);
- Vars
- R(c);OGATE,P_SPINS(f),XB(E)::QAR1(G),XR(c)
- S(g);N_GUARD,XQ(G)::S(I),XP(e)
- P(a);N_GUARD::S(C)
- R(c);N_GUARD,P_SPINS(f)::S(I)
- R(c);N_GUARD,P_SPINS(f)::S(I),XR(c)
- S(f);N_GUARD,P_SPINR(c)::S(I)
- S(f);N_GUARD,P_SPINR(c)::S(I),XS(f)
- S(g);N_GUARD::S(I),XP(e)
- P(e);N_GUARD,S_CUTR(c)::S(C)
- Refutation
- P(d);
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- S(g);N_GUARD,XQ(G)::S(I),XP(e)
- R(c);N_GUARD,P_SPINS(f)::S(I)
- R(c);N_GUARD,P_SPINS(f)::S(I),XR(c)
- S(f);N_GUARD,P_SPINR(c)::S(I),XS(f)
- S(g);N_GUARD::S(I),XP(e)
- Refutation
- P(d);
- Try
- Q(G);
- Threat
- QAB(G)
- Vars
- S(f);N_GUARD,P_SPINR(c)::S(I)
- S(g);N_GUARD::S(I),XP(e)
- Refutation
- R(c);P_SPINS(f),XB(E)
- Try
- Q(G);
- Threat
- QAB(G)
- Vars
- S(f);N_GUARD,P_SPINR(c)::S(I)
- S(g);N_GUARD::S(I),XP(e)
- Refutation
- R(c);P_SPINS(f),XB(E)
- Try
- Q(G);
- Vars
- R(c);N_GUARD,P_SPINS(f),XQ(G)::S(I)
- S(f);N_GUARD,P_SPINR(c),XQ(G)::S(I)
- P(a);N_GUARD::S(C)
- R(c);N_GUARD,P_SPINS(f)::S(I)
- R(c);N_GUARD,P_SPINS(f)::S(I),XR(c)
- S(f);N_GUARD,P_SPINR(c)::S(I)
- S(f);N_GUARD,P_SPINR(c)::S(I),XS(f)
- S(g);N_GUARD::S(I),XP(e)
- P(d);N_GUARD::QAB1(G),XR(c)
- P(e);N_GUARD,S_CUTR(c)::S(C)
- Refutation
- R(c);P_SPINS(f),XB(E)
- Try
- Actual
- Q(G);
- Vars
- R(c);OGATE,P_SPINS(f),XB(E)::QAR1(G),XR(c)
- R(c);N_GUARD,P_SPINS(f),XQ(G)::S(I)
- S(f);N_GUARD,P_SPINR(c),XQ(G)::S(I)
- S(g);N_GUARD,XQ(G)::S(I),XP(e)
- P(a);N_GUARD::S(C)
- R(c);N_GUARD,P_SPINS(f)::S(I)
- R(c);N_GUARD,P_SPINS(f)::S(I),XR(c)
- S(f);N_GUARD,P_SPINR(c)::S(I)
- S(f);N_GUARD,P_SPINR(c)::S(I),XS(f)
- S(g);N_GUARD::S(I),XP(e)
- P(d);N_GUARD::QAB1(G),XR(c)
- P(e);N_GUARD,S_CUTR(c)::S(C)
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).