MESON Chess Problem Database
Problem Display
PID: 22231 (nNR2n2/2p2b2/K3P1Pp/p1k3r1/5Q2/P1rP4/7R/4N1bB w - - 0 1)
Schatz, Max
2nd Comm., Die Schwalbe (Forderung), 1998-2000
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Rc2
- 2.Rxc2#
- 1...Rxd3
- 2.Sxd3#
- 1...Rg2
- 2.Qe5#
- 1...Rg3
- 2.Qe5#
- 1...Rg4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Rh5
- 2.Rxh5#
- 1...Rxg6
- 2.Qe5#
- 1...Sb6
- 2.Rxc7#
- 1...Sxe6
- 2.Sd7#
- 1...Sxg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...a4
- 2.Qb4#
- 1...c6
- 2.Rxc6#
- 1...Rc2
- Tries
- 1.Kxa5?
- threat
- 2.Sa6#
- 2.Qb4#
- 1...Rg2
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 2.Qb4#
- 1...Rb3
- 2.Sa6#
- 1...Rc4
- 2.Sa6#
- 1...Rg4
- 2.Sa6#
- 2.Qe5#
- 1...Rd5
- 2.Qb4#
- 1...Bd4
- 2.Sa6#
- 1...Rxa3+!
- threat
- 1.Qxc7+?
- 1...Kd4
- 2.Qf4#
- 1...Sxc7+!
- 1...Kd4
- 1.g7?
- threat
- 2.gxf8Q#
- 2.gxf8B#
- 1...Rxa3
- 2.gxf8Q#
- 2.gxf8B#
- 1...Rxd3
- 2.Sxd3#
- 1...Rxg7
- 2.Qe5#
- 1...Bxh2
- 2.gxf8Q#
- 2.gxf8B#
- 1...Bxe6
- 2.gxf8Q#
- 2.gxf8B#
- 1...Sxe6
- 2.Sd7#
- 1...Rg2
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 2.gxf8Q#
- 2.gxf8B#
- 1...Be8
- 2.gxf8Q#
- 2.gxf8B#
- 1...Rc1
- 2.gxf8Q#
- 2.gxf8B#
- 1...Rc2
- 2.Rxc2#
- 2.gxf8Q#
- 2.gxf8B#
- 1...Rb3
- 2.gxf8Q#
- 2.gxf8B#
- 1...Rc4
- 2.gxf8Q#
- 2.gxf8B#
- 1...Rg3
- 2.Qe5#
- 2.gxf8Q#
- 2.gxf8B#
- 1...Rg4
- 2.Qe5#
- 2.gxf8Q#
- 2.gxf8B#
- 1...Rf5
- 2.gxf8Q#
- 2.gxf8B#
- 1...Rh5
- 2.gxf8Q#
- 2.gxf8B#
- 1...Rg6
- 2.Qe5#
- 2.gxf8Q#
- 2.gxf8B#
- 1...Bf2
- 2.gxf8Q#
- 2.gxf8B#
- 1...Be3
- 2.gxf8Q#
- 2.gxf8B#
- 1...Bd4
- 2.gxf8Q#
- 2.gxf8B#
- 1...Bh5
- 2.gxf8Q#
- 2.gxf8B#
- 1...Bg6
- 2.gxf8Q#
- 2.gxf8B#
- 1...Bg8
- 2.gxf8Q#
- 2.gxf8B#
- 1...Sb6
- 2.Rxc7#
- 2.gxf8Q#
- 2.gxf8B#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...a4
- 2.Qb4#
- 2.gxf8Q#
- 2.gxf8B#
- 1...h5
- 2.gxf8Q#
- 2.gxf8B#
- 1...c6
- 2.Rxc6#
- 2.gxf8Q#
- 2.gxf8B#
- 1...Rd5!
- threat
- 1.Kxa5?
- Keys
- 1.Rd8!
- 1...Rxa3
- 2.Qc4#
- 1...Rxd3
- 2.Sxd3#
- 1...Rxg6
- 2.Rd5#
- 2.Qe5#
- 2.Qf5#
- 1...Bxh2
- 2.Qe3#
- 2.Qf2#
- 2.Qd4#
- 1...Bxe6
- 2.Qxf8#
- 1...Bxg6
- 2.Qxf8#
- 1...Sxe6
- 2.Sd7#
- 1...Sxg6
- 2.Sd7#
- 1...Be8
- 2.Qxf8#
- 1...Rc1
- 2.Qxc1#
- 1...Rc2
- 2.Rxc2#
- 1...Rb3
- 2.Qc4#
- 1...Rc4
- 2.Qxc4#
- 1...Rg2
- 2.Qe5#
- 2.Qf5#
- 1...Rg3
- 2.Rd5#
- 2.Qe5#
- 2.Qf5#
- 1...Rg4
- 2.Rd5#
- 2.Qe5#
- 2.Qf5#
- 1...Rd5
- 2.Rxd5#
- 1...Re5
- 2.Qxe5#
- 1...Rf5
- 2.Qxf5#
- 1...Rh5
- 2.Rxh5#
- 1...Bf2
- 2.Qxf2#
- 1...Be3
- 2.Qxe3#
- 1...Bd4
- 2.Qxd4#
- 1...Bg8
- 2.Qxf8#
- 1...Sb6
- 2.Qxc7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...a4
- 2.Qb4#
- 1...h5
- 2.Qxg5#
- 1...c6
- 2.Qd6#
- 1...Rxa3
- 1.Rd8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 14
- REMOVED MATES = 4
- Sets
- R(b);OGATEB::R(C),XR(b)
- R(b);XP(E)::S(A),XR(b)
- R(e);N_GUARD::QAR2(F)
- R(e);N_GUARD::QAR2(F),XR(e)
- R(e);OGATEB::R(C),XR(e)
- R(e);N_GUARD,P_PINP(H),XP(I)::QAR2(F)
- S(i);N_GUARD::R(K),XP(g)
- S(j);N_GUARD,XP(H)::S(J)
- S(j);N_GUARD,XP(I)::S(J)
- S(j);N_GUARD::S(J),XS(j)
- S(j);N_GUARD::S(J)
- P(c);N_GUARD::QAB1(F)
- P(g);OGATE::R1(K),XP(g)
- Tries
- Try
- K(G);P-FLIGHT,XP(c)
- Threat
- DUALS(2)
- Vars
- R(e);N_GUARD::QAR2(F)
- R(b);::S(J)
- R(e);::QAB1(F)
- B(a);::S(J)
- Refutation
- R(b);CHECK,XP(D)
- Try
- Q(F);CHECK,XP(g)
- Vars
- K(d);S_FLIGHT::QAR2(F)
- Refutation
- S(i);CHECK,P_SPINS(i),XQ(F)
- Try
- P(I);
- Threat
- PXS(j)=Q
- Vars
- R(b);XP(D)::PXS(j)=Q
- R(b);XP(E)::S(A),XR(b)
- R(e);N_GUARD,XP(I)::QAR2(F)
- B(a);XR(C)::PXS(j)=Q
- B(h);XP(H)::PXS(j)=Q
- S(j);N_GUARD,XP(H)::S(J)
- R(e);N_GUARD::QAR2(F)
- B(h);::PXS(j)=Q
- R(b);::PXS(j)=Q
- R(e);::PXS(j)=Q
- B(a);::PXS(j)=Q
- S(j);N_GUARD::S(J)
- S(j);N_GUARD::S(J),XS(j)
- P(f);::PXS(j)=Q
- Refutation
- R(e);
- Try
- Actual
- R(K);N_PINP(g)
- Vars
- R(b);N_GUARD,XP(D)::QAR1(F)
- R(b);XP(E)::S(A),XR(b)
- B(h);OGATE,XP(H)::QAB(F),XS(j)
- B(h);OGATE,XP(I)::QAB(F),XS(j)
- S(j);N_GUARD,XP(H)::S(J)
- S(j);N_GUARD,XP(I)::S(J)
- B(h);OGATE::QAB(F),XS(j)
- R(b);OGATEB::QAR(F),XR(b)
- R(b);OGATEB::R(C),XR(b)
- R(b);N_GUARD::QAR1(F)
- R(b);N_GUARD::QAR1(F),XR(b)
- R(e);N_GUARD::R1(K),XR(e)
- R(e);N_GUARD::QAR2(F),XR(e)
- R(e);N_GUARD::QAR(F),XR(e)
- R(e);OGATEB::R(C),XR(e)
- B(a);N_GUARD::QAB(F),XB(a)
- B(a);N_GUARD::QAB1(F),XB(a)
- S(i);N_GUARD::QAR2(F),XP(g)
- S(j);N_GUARD::S(J),XS(j)
- S(j);N_GUARD::S(J)
- P(c);N_GUARD::QAB1(F)
- P(f);N_GUARD::QAR(F),XR(e)
- P(g);N_GUARD::QAB1(F)
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).