MESON Chess Problem Database
Problem Display
PID: 23436 (3K4/2B1Qp2/3Pp1N1/1PPkp1nR/NR5b/7r/3r2n1/4q2B w - - 0 1)
Schirdewan, Udo
Velhagen u. Kl. Mh., 1932
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Se4
- 2.Rxe5#
- 1...Sh7
- 2.Sf4#
- 1...Se4
- Tries
- 1.Ba5?
- threat
- 2.Qb7#
- 1...Se4
- 2.Rxe5#
- 1...Sh7
- 2.Sf4#
- 1...Sf3!
- threat
- 1.Bb8?
- threat
- 2.Qb7#
- 1...Se4
- 2.Rxe5#
- 1...Sh7
- 2.Sf4#
- 1...Sf3!
- threat
- 1.d7?
- threat
- 2.Sb6#
- 2.Qd6#
- 1...Sf3
- 2.Sc3#
- 2.Sb6#
- 1...Se4
- 2.Sb6#
- 2.Rxe5#
- 1...Sh7
- 2.Sb6#
- 2.Sf4#
- 1...Rd4!
- threat
- 1.Ba5?
- Keys
- 1.Bb6!
- threat
- 2.Qb7#
- 1...Sf3
- 2.Sc3#
- 1...Se4
- 2.Rxe5#
- 1...Sh7
- 2.Sf4#
- threat
- 1.Bb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(h);N_SPINS(c),OGATE,P_PINQ(J),P_SPINP(g)::R1(F),XP(g)
- S(h);P_PINQ(J),P_SPINP(g)::S(H)
- Tries
- Try
- B(I);
- Threat
- QAB(J)
- Vars
- S(h);N_SPINS(c),OGATE,P_PINQ(J),P_SPINP(g)::R1(F),XP(g)
- S(h);P_PINQ(J),P_SPINP(g)::S(H)
- Refutation
- S(h);N_SPINS(c),P_PINQ(J),P_SPINP(g)
- Try
- B(I);
- Threat
- QAB(J)
- Vars
- S(h);N_SPINS(c),OGATE,P_PINQ(J),P_SPINP(g)::R1(F),XP(g)
- S(h);P_PINQ(J),P_SPINP(g)::S(H)
- Refutation
- S(h);N_SPINS(c),P_PINQ(J),P_SPINP(g)
- Try
- P(G);
- Threat
- DUALS(2)
- Refutation
- R(b);
- Try
- Actual
- B(I);
- Threat
- QAB(J)
- Vars
- S(h);N_SPINS(c),P_PINQ(J),P_SPINP(g),S_CUTR(d)::S(B)
- S(h);N_SPINS(c),OGATE,P_PINQ(J),P_SPINP(g)::R1(F),XP(g)
- S(h);P_PINQ(J),P_SPINP(g)::S(H)
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).