MESON Chess Problem Database
Problem Display
PID: 179881 (4BK2/Nn1p4/1P2b2R/1pnk1Pp1/1Q4Np/6rP/7B/2R5 w - - 0 1)
Gross, Erwin
Die Schwalbe, 1960
#2
11 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Kd6
- 2.Rd1#
- 2.Qd4#
- 1...Rg1
- 2.Se3#
- 2.Sf6#
- 1...Rg2
- 2.Se3#
- 2.Sf6#
- 1...Ra3
- 2.Sf6#
- 1...Rb3
- 2.Sf6#
- 1...Rc3
- 2.Sf6#
- 1...Rd3
- 2.Sf6#
- 1...Re3
- 2.Sxe3#
- 2.Sf6#
- 1...Rf3
- 2.Sf6#
- 1...Rxh3
- 2.Sf6#
- 1...Sd6
- 2.Rxc5#
- 1...d6
- 2.Bc6#
- 1...Kd6
- Tries
- 1.Bxg3?
- threat
- 2.Se3#
- 2.Sf6#
- 1...Bxf5
- 2.Se3#
- 1...Se4
- 2.Se3#
- 1...hxg3!
- threat
- 1.Rd1+?
- 1...Rd3
- 2.Se3#
- 2.Sf6#
- 1...Sd3!
- 1...Rd3
- 1.Rxc5+?
- 1...Kd6
- 2.Sxb5#
- 2.Sc8#
- 2.Qd4#
- 1...Sxc5!
- 1...Kd6
- 1.Qc4+?
- 1...Kd6
- 2.Qd4#
- 1...bxc4!
- 1...Kd6
- 1.Qf4?
- threat
- 2.Sf6#
- 2.Qe5#
- 1...Rxg4
- 2.Qe5#
- 1...Bxf5
- 2.Qe5#
- 1...Se4
- 2.Qe5#
- 1...Rc3
- 2.Sf6#
- 1...Re3
- 2.Sxe3#
- 2.Sf6#
- 1...Sd3
- 2.Sf6#
- 1...d6
- 2.Sf6#
- 2.Bc6#
- 1...gxf4!
- threat
- 1.Bxg3?
- Keys
- 1.Sc8!
- 1...Kc6
- 2.Qe4#
- 1...Rxh3
- 2.Se7#
- 1...Rxg4
- 2.Se7#
- 1...Bxf5
- 2.Se7#
- 1...Rg1
- 2.Se7#
- 1...Rg2
- 2.Se7#
- 1...Ra3
- 2.Se7#
- 1...Rb3
- 2.Se7#
- 1...Rc3
- 2.Se7#
- 1...Rd3
- 2.Se7#
- 1...Re3
- 2.Se7#
- 1...Rf3
- 2.Se7#
- 1...Bf7
- 2.Se7#
- 1...Bg8
- 2.Se7#
- 1...Sb3
- 2.Se7#
- 1...Sd3
- 2.Se7#
- 1...Sa4
- 2.Se7#
- 1...Se4
- 2.Se7#
- 1...Sa6
- 2.Se7#
- 1...Sa5
- 2.Rxc5#
- 1...Sd6
- 2.Se7#
- 2.Rxc5#
- 1...Sd8
- 2.Rxc5#
- 1...d6
- 2.Se7#
- 1...Kc6
- 1.Sc8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 7
- ADDED MATES = 15
- REMOVED MATES = 1
- Sets
- R(a);::S(E)
- R(a);P_PINP(F)::S(E)
- R(a);XP(C)::S(E)
- S(h);N_GUARD,SBLOCK::R1(A),XS(d)
- P(i);OGATE,SBLOCK::B(J)
- Tries
- Try
- B(B);XR(a)
- Threat
- DUALS(2)
- Vars
- B(g);XP(F)::S(E)
- S(d);::S(E)
- Refutation
- P(b);XB(B)
- Try
- R(A);CHECK
- Refutation
- S(d);P_SPINS(d)
- Try
- R(A);CHECK,XS(d)
- Refutation
- S(h);XR(A)
- Try
- Q(D);CHECK
- Vars
- K(e);P-FLIGHT,P_SPINB(g),P_SPINR(a)::QAR2(D)
- Refutation
- P(c);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- R(a);XS(E)::QAR1(D)
- B(g);XP(F)::QAR1(D)
- S(d);::QAR1(D)
- R(a);::S(E)
- S(d);::S(E)
- Refutation
- P(f);XQ(D)
- Try
- Actual
- S(I);
- Vars
- K(e);P_SPINB(g),P_SPINP(i),P_SPINS(d),S_FLIGHT::QAB(D)
- R(a);XP(C)::S(I)
- R(a);XS(E)::S(I)
- B(g);XP(F)::S(I)
- R(a);::S(I)
- R(a);P_PINP(F)::S(I)
- B(g);::S(I)
- S(d);::S(I)
- S(h);N_GUARD::R1(A),XS(d)
- P(i);SBLOCK::S(I)
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).