MESON Chess Problem Database
Problem Display
PID: 255817 (2N5/B3Q3/R1p2r2/3kNP2/BR2n2b/Kp2q2r/1P1p1p2/1b6 w - - 0 1)
Belschan, Josef
Wiener Schachzeitung, 1937
#2
10 + 11
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Rxd4#
- 1...Qf4
- 2.Sb6#
- 2.Rd4#
- 1...Qg5
- 2.Sb6#
- 2.Rd4#
- 1...Qb6
- 2.Sxb6#
- 1...Qh6
- 2.Sb6#
- 2.Rd4#
- 1...Qe1
- 2.Sb6#
- 2.Rd4#
- 1...Qe2
- 2.Sb6#
- 2.Rd4#
- 1...Qc3
- 2.Sb6#
- 1...Qd3
- 2.Sb6#
- 1...Qf3
- 2.Sb6#
- 2.Rd4#
- 1...Qg3
- 2.Sb6#
- 2.Rd4#
- 1...Rxf5
- 2.Bxc6#
- 1...Re6
- 2.Qxe6#
- 1...Rf7
- 2.Bxc6#
- 2.Qe6#
- 1...Rf8
- 2.Bxc6#
- 2.Qe6#
- 1...Sc3
- 2.Bxb3#
- 1...Sc5
- 2.Sb6#
- 1...Sd6
- 2.Bxc6#
- 1...Qd4
- Tries
- 1.Sd3?
- threat
- 2.Bxb3#
- 2.Qe5#
- 1...Qxd3
- 2.Sb6#
- 1...Rxf5
- 2.Bxb3#
- 2.Bxc6#
- 1...d1Q
- 2.Qe5#
- 1...d1B
- 2.Qe5#
- 1...Qd4
- 2.Sf4#
- 2.Rxd4#
- 1...Qf4
- 2.Sxf4#
- 2.Sb6#
- 2.Bxb3#
- 2.Rd4#
- 1...Qc5
- 2.Sf4#
- 2.Qxe4#
- 2.Qe5#
- 1...Qg3
- 2.Sb6#
- 2.Bxb3#
- 2.Rd4#
- 2.Qxe4#
- 1...Re6
- 2.Bxb3#
- 2.Qxe6#
- 1...Ba2
- 2.Qe5#
- 1...Bc2
- 2.Qe5#
- 1...Bg3
- 2.Bxb3#
- 1...Sc3
- 2.Bxb3#
- 1...Sg3
- 2.Bxb3#
- 1...Sc5
- 2.Sb6#
- 1...Sg5
- 2.Bxb3#
- 1...Sd6
- 2.Bxc6#
- 1...c5
- 2.Qe5#
- 1...Bxd3!
- threat
- 1.Bxe3?
- threat
- 2.Sb6#
- 2.Bxb3#
- 2.Rd4#
- 1...Rxe3
- 2.Sb6#
- 1...Re6
- 2.Qxe6#
- 1...d1Q
- 2.Sb6#
- 1...d1B
- 2.Sb6#
- 2.Rd4#
- 1...d1R
- 2.Sb6#
- 2.Bxb3#
- 1...f1Q
- 2.Sb6#
- 2.Rd4#
- 1...f1B
- 2.Sb6#
- 2.Rd4#
- 1...Rd6
- 2.Sb6#
- 2.Bxb3#
- 1...Ba2
- 2.Sb6#
- 2.Rd4#
- 1...Bc2
- 2.Sb6#
- 2.Rd4#
- 1...Bd3
- 2.Sb6#
- 2.Rd4#
- 1...Sc5
- 2.Sb6#
- 2.Rd4#
- 2.Qxc5#
- 1...Sd6
- 2.Sb6#
- 2.Bxc6#
- 1...c5!
- threat
- 1.Ra5+?
- 1...Qc5
- 2.Sb6#
- 1...Sc5
- 2.Sb6#
- 1...c5!
- 1...Qc5
- 1.Sd3?
- Keys
- 1.Sg4!
- threat
- 2.Qe5#
- 1...Rxf5
- 2.Bxc6#
- 1...Qd4
- 2.Rxd4#
- 1...Qf4
- 2.Sb6#
- 2.Rd4#
- 1...Qc3
- 2.Sb6#
- 1...Qg3
- 2.Sb6#
- 2.Rd4#
- 1...Re6
- 2.Qxe6#
- 1...Bg3
- 2.Sxe3#
- 1...Sc3
- 2.Bxb3#
- 1...Sg3
- 2.Sxe3#
- 1...Sc5
- 2.Sb6#
- 1...Sg5
- 2.Sxf6#
- 1...Sd6
- 2.Bxc6#
- threat
- 1.Sg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- Q(e);N_GUARD::R1(D),XQ(e)
- Q(e);N_GUARD::S(J),XQ(e)
- Q(e);N_GUARD::S(J)
- R(k);N_GUARD,XP(F)::B(C),XP(j)
- R(k);N_GUARD::QAB1(I),XR(k)
- S(g);S_CUTQ(e)::B(C),XP(d)
- S(g);S_CUTQ(e)::S(J)
- S(g);S_CUTR(k)::B(C),XP(j)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(e);N_GUARD,XS(E)::S(J)
- P(b);::QAR1(I)
- B(a);::QAR1(I)
- B(h);::B(C),XP(d)
- S(g);::B(C),XP(d)
- S(g);S_CUTQ(e)::S(J)
- S(g);S_CUTR(k)::B(C),XP(j)
- P(j);::QAR1(I)
- Refutation
- B(a);XS(E)
- Try
- B(H);XQ(e)
- Threat
- DUALS(3)
- Vars
- R(f);XB(H)::S(J)
- R(k);N_GUARD::QAB1(I),XR(k)
- P(b);::S(J)
- Refutation
- P(j);
- Try
- R(G);CHECK
- Vars
- Q(e);P_PINR(D),P_SPINQ(e)::S(J)
- S(g);P_SPINS(g)::S(J)
- Refutation
- P(j);P_SPINP(j)
- Try
- Actual
- S(E);
- Threat
- QAR1(I)
- Vars
- R(k);N_GUARD,XP(F)::B(C),XP(j)
- Q(e);N_GUARD::R1(D),XQ(e)
- Q(e);N_GUARD::S(J)
- R(k);N_GUARD::QAB1(I),XR(k)
- B(h);S_CUTR(f)::S(E),XQ(e)
- S(g);S_CUTQ(e)::B(C),XP(d)
- S(g);S_CUTR(f)::S(E),XQ(e)
- S(g);S_CUTQ(e)::S(J)
- S(g);N_GUARD,S_CUTB(h)::S(E),XR(k)
- S(g);S_CUTR(k)::B(C),XP(j)
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).