MESON Chess Problem Database
Problem Display
PID: 90271 (8/5p2/p4p1p/P1R3bP/P1RPk3/2r3p1/2PpN1P1/1B1K1N1Q w - - 0 1)
Hilbig, Fritz
Voigt, E
Die Schwalbe, 1940
#2
13 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxc2
- 2.Bxc2#
- 1...Ra3
- 2.c3#
- 1...Rb3
- 2.cxb3#
- 1...Rd3
- 2.cxd3#
- 1...Re3
- 2.Sxd2#
- 1...Rf3
- 2.gxf3#
- 1...Rxc4
- 2.c3#
- 1...Be3
- 2.Sfxg3#
- 1...Bf4
- 2.Sxc3#
- 1...Bh4
- 2.Qxh4#
- 1...f5
- 2.Re5#
- 1...Rxc2
- Tries
- 1.Sxd2+?
- 1...Ke3
- 2.Qg1#
- 1...Bxd2!
- 1...Ke3
- 1.Sfxg3+?
- 1...Ke3
- 2.Qg1#
- 1...Rxg3!
- 1...Ke3
- 1.Rxc3?
- threat
- 2.Sfxg3#
- 1...Bh4
- 2.Sxd2#
- 2.Re3#
- 2.Qxh4#
- 1...Bf4!
- threat
- 1.Rb5?
- 1...Rxc2
- 2.Bxc2#
- 1...Rxc4
- 2.c3#
- 1...Ra3
- 2.c3#
- 1...Rb3
- 2.cxb3#
- 1...Rd3
- 2.cxd3#
- 1...Re3
- 2.Sxd2#
- 1...Rf3
- 2.gxf3#
- 1...Be3
- 2.Sfxg3#
- 1...Bf4
- 2.Sxc3#
- 1...Bh4
- 2.Qxh4#
- 1...f5
- 2.Re5#
- 1...axb5!
- 1...Rxc2
- 1.Qg1?
- 1...Rxc2
- 2.Bxc2#
- 1...Rxc4
- 2.Sfxg3#
- 2.c3#
- 1...Ra3
- 2.c3#
- 1...Rb3
- 2.cxb3#
- 1...Rd3
- 2.cxd3#
- 1...Re3
- 2.Sxd2#
- 1...Be3
- 2.Sfxg3#
- 1...Bf4
- 2.Sxc3#
- 1...Bh4
- 2.Sxd2#
- 1...f5
- 2.Re5#
- 1...Rf3!
- 1...Rxc2
- 1.Qh3?
- threat
- 2.Qf5#
- 1...f5
- 2.Re5#
- 2.Qxf5#
- 1...Rf3!
- threat
- 1.Qh4+?
- 1...Bf4
- 2.Sxc3#
- 2.Qxf4#
- 1...Bxh4!
- 1...Bf4
- 1.Sxd2+?
- Keys
- 1.Rb4!
- 1...Rxc2
- 2.Bxc2#
- 1...Rxc5
- 2.c4#
- 1...Ra3
- 2.c3#
- 1...Rb3
- 2.cxb3#
- 1...Rd3
- 2.cxd3#
- 1...Re3
- 2.Sxd2#
- 1...Rf3
- 2.gxf3#
- 1...Rc4
- 2.c3#
- 1...Be3
- 2.Sfxg3#
- 1...Bf4
- 2.Sxc3#
- 1...Bh4
- 2.Qxh4#
- 1...f5
- 2.Re5#
- 1...Rxc2
- 1.Rb4!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);OGATE,P_SPINR(b),XP(E)::B(A),XR(b)
- R(b);OGATE::B(A)+P(E)
- R(b);OGATE::B(A)+P(E),XR(b)
- R(b);OGATE::P(E),XR(b)
- R(b);SBLOCK,S_CUTB(e)::S(C),XP(a)
- R(b);OGATE::P(G),XR(b)
- R(b);OGATE,XR(I)::B(A)+P(E)
- B(e);SBLOCK,S_CUTR(b)::S(C),XP(c)
- B(e);SBLOCK::S(F),XR(b)
- B(e);N_GUARD::QAR(D),XB(e)
- P(g);N_GUARD::R1(L)
- Tries
- Try
- S(C);CHECK,XP(a)
- Vars
- K(d);P-FLIGHT::QAB(D)
- Refutation
- B(e);XS(C)
- Try
- S(C);CHECK,XP(c)
- Vars
- K(d);P-FLIGHT::QAB(D)
- Refutation
- R(b);XS(C)
- Try
- R(I);XR(b)
- Threat
- S(C),XP(c)
- Refutation
- B(e);
- Try
- R(L);
- Vars
- R(b);OGATE,P_SPINR(b),XP(E)::B(A),XR(b)
- R(b);OGATE,XR(I)::B(A)+P(E)
- R(b);OGATE::B(A)+P(E)
- R(b);OGATE::B(A)+P(E),XR(b)
- R(b);OGATE::P(E),XR(b)
- R(b);SBLOCK,S_CUTB(e)::S(C),XP(a)
- R(b);OGATE::P(G),XR(b)
- B(e);SBLOCK,S_CUTR(b)::S(C),XP(c)
- B(e);SBLOCK::S(F),XR(b)
- B(e);N_GUARD::QAR(D),XB(e)
- P(g);N_GUARD::R1(L)
- Refutation
- P(f);XR(L)
- Try
- Q(D);
- Vars
- R(b);OGATE,P_SPINR(b),XP(E)::B(A),XR(b)
- R(b);OGATE::B(A)+P(E)
- R(b);OGATE::B(A)+P(E),XR(b)
- R(b);OGATE::P(E),XR(b)
- R(b);S_CUTB(e)::S(C),XP(a)
- B(e);S_CUTR(b)::S(C),XP(c)
- B(e);SBLOCK::S(F),XR(b)
- B(e);N_GUARD::S(C),XP(a)
- P(g);N_GUARD::R1(L)
- Refutation
- R(b);
- Try
- Q(D);
- Threat
- QAB1(D)
- Refutation
- R(b);
- Try
- Q(D);CHECK
- Refutation
- B(e);XQ(D)
- Try
- Actual
- R(I);
- Vars
- R(b);OGATE,P_SPINR(b),XP(E)::B(A),XR(b)
- R(b);OGATE,XR(L)::B(A)+P(E)
- R(b);OGATE::B(A)+P(E)
- R(b);OGATE::B(A)+P(E),XR(b)
- R(b);OGATE::P(E),XR(b)
- R(b);SBLOCK,S_CUTB(e)::S(C),XP(a)
- R(b);OGATE::P(G),XR(b)
- B(e);SBLOCK,S_CUTR(b)::S(C),XP(c)
- B(e);SBLOCK::S(F),XR(b)
- B(e);N_GUARD::QAR(D),XB(e)
- P(g);N_GUARD::R1(L)
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).