MESON Chess Problem Database
Problem Display
PID: 254874 (8/1Q6/8/8/8/4Bp1n/rp1R4/1k2KR2 w - - 0 1)
von Sponer, Andor
Wiener Schachzeitung, 1887
#2
5 + 5
| 14789 | Cheltenham Examiner | 1890 |
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kc1
- 2.Rxb2#
- 1...Ra1
- 2.Rxb2#
- 2.Qxb2#
- 1...Ra3
- 2.Qxb2#
- 1...Ra4
- 2.Qxb2#
- 1...Ra5
- 2.Qxb2#
- 1...Ra6
- 2.Qxb2#
- 1...Ra7
- 2.Qxb2#
- 1...Ra8
- 2.Qxb2#
- 1...Sg1
- 2.Kf2#
- 1...Sf2
- 2.Kxf2#
- 1...Sf4
- 2.Kf2#
- 1...Sg5
- 2.Kf2#
- 1...f2+
- 2.Ke2#
- 1...Kc1
- Tries
- 1.Bd4?
- 1...f2+
- 2.Ke2#
- 1...Ka1
- 2.Rd1#
- 1...Ra3
- 2.Qxb2#
- 1...Ra4
- 2.Qxb2#
- 1...Ra5
- 2.Qxb2#
- 1...Ra6
- 2.Qxb2#
- 1...Ra7
- 2.Qxb2#
- 1...Ra8
- 2.Qxb2#
- 1...Ra1
- 2.Qxb2#
- 1...Sg1
- 2.Kf2#
- 1...Sf2
- 2.Kxf2#
- 1...Sf4
- 2.Kf2#
- 1...Sg5
- 2.Kf2#
- 1...Kc1!
- 1...f2+
- 1.Rxb2+?
- 1...Ka1
- 2.Kd2#
- 2.Rb1#
- 1...Rxb2!
- 1...Ka1
- 1.Qe4+?
- 1...Kc1
- 2.Rd1#
- 2.Re2#
- 2.Rdf2#
- 2.Rg2#
- 2.Rh2#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 2.Qc2#
- 1...Ka1!
- 1...Kc1
- 1.Qb3?
- threat
- 2.Rd1#
- 2.Qd1#
- 1...f2+
- 2.Ke2#
- 1...Kc1
- 2.Rd1#
- 2.Rxb2#
- 2.Qd1#
- 2.Qc2#
- 1...Ra1
- 2.Rd1#
- 2.Rxb2#
- 2.Qxb2#
- 1...Ra3
- 2.Rd1#
- 2.Qxb2#
- 1...Ra4
- 2.Rd1#
- 2.Qxb2#
- 1...Ra5
- 2.Rd1#
- 2.Qxb2#
- 1...Ra6
- 2.Rd1#
- 2.Qxb2#
- 1...Ra7
- 2.Rd1#
- 2.Qxb2#
- 1...Ra8
- 2.Rd1#
- 2.Qxb2#
- 1...Sf2
- 2.Kxf2#
- 1...Ka1!
- threat
- 1.Qb4?
- 1...f2+
- 2.Ke2#
- 1...Kc1
- 2.Rxb2#
- 1...Ra3
- 2.Qxb2#
- 1...Ra4
- 2.Qxb2#
- 1...Ra5
- 2.Qxb2#
- 1...Ra6
- 2.Qxb2#
- 1...Ra7
- 2.Qxb2#
- 1...Ra8
- 2.Qxb2#
- 1...Ra1
- 2.Rxb2#
- 2.Qxb2#
- 1...Sg1
- 2.Kf2#
- 1...Sf2
- 2.Kxf2#
- 1...Sf4
- 2.Kf2#
- 1...Sg5
- 2.Kf2#
- 1...Ka1!
- 1...f2+
- 1.Qb5?
- 1...f2+
- 2.Ke2#
- 1...Kc1
- 2.Rxb2#
- 1...Ra3
- 2.Qxb2#
- 1...Ra4
- 2.Qxb2#
- 1...Ra5
- 2.Qxb2#
- 1...Ra6
- 2.Qxb2#
- 1...Ra7
- 2.Qxb2#
- 1...Ra8
- 2.Qxb2#
- 1...Ra1
- 2.Rxb2#
- 2.Qxb2#
- 1...Sg1
- 2.Kf2#
- 1...Sf2
- 2.Kxf2#
- 1...Sf4
- 2.Kf2#
- 1...Sg5
- 2.Kf2#
- 1...Ka1!
- 1...f2+
- 1.Qb6?
- 1...f2+
- 2.Ke2#
- 1...Kc1
- 2.Rxb2#
- 1...Ra3
- 2.Qxb2#
- 1...Ra4
- 2.Qxb2#
- 1...Ra5
- 2.Qxb2#
- 1...Ra6
- 2.Qxb2#
- 1...Ra7
- 2.Qxb2#
- 1...Ra8
- 2.Qxb2#
- 1...Ra1
- 2.Rxb2#
- 2.Qxb2#
- 1...Sg1
- 2.Kf2#
- 1...Sf2
- 2.Kxf2#
- 1...Sf4
- 2.Kf2#
- 1...Sg5
- 2.Kf2#
- 1...Ka1!
- 1...f2+
- 1.Qh7+?
- 1...Kc1
- 2.Rd1#
- 2.Re2#
- 2.Rdf2#
- 2.Rg2#
- 2.Rh2#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 2.Qc2#
- 1...Ka1!
- 1...Kc1
- 1.Qb8?
- 1...f2+
- 2.Ke2#
- 1...Kc1
- 2.Rxb2#
- 1...Ra3
- 2.Qxb2#
- 1...Ra4
- 2.Qxb2#
- 1...Ra5
- 2.Qxb2#
- 1...Ra6
- 2.Qxb2#
- 1...Ra7
- 2.Qxb2#
- 1...Ra8
- 2.Qxb2#
- 1...Ra1
- 2.Rxb2#
- 2.Qxb2#
- 1...Sg1
- 2.Kf2#
- 1...Sf2
- 2.Kxf2#
- 1...Sf4
- 2.Kf2#
- 1...Sg5
- 2.Kf2#
- 1...Ka1!
- 1...f2+
- 1.Bd4?
- Keys
- 1.Qg7!
- 1...f2+
- 2.Ke2#
- 1...Ka1
- 2.Rd1#
- 1...Kc1
- 2.Rxb2#
- 1...Ra3
- 2.Qxb2#
- 1...Ra4
- 2.Qxb2#
- 1...Ra5
- 2.Qxb2#
- 1...Ra6
- 2.Qxb2#
- 1...Ra7
- 2.Qxb2#
- 1...Ra8
- 2.Qxb2#
- 1...Ra1
- 2.Rxb2#
- 2.Qxb2#
- 1...Sg1
- 2.Kf2#
- 1...Sf2
- 2.Kxf2#
- 1...Sf4
- 2.Kf2#
- 1...Sg5
- 2.Kf2#
- 1...f2+
- 1.Qg7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(a);N_GUARD,N_SPINP(c),P-FLIGHT,S_CUTR(b)::B(D)+R(C),XP(c)
- R(b);N_GUARD::QAR1(E),XP(c)
- S(e);::R(B)+K(A)
- S(e);::R(B)+K(A),XS(e)
- P(d);CHECK::R(B)+K(A)
- Tries
- Try
- B(D);
- Vars
- P(d);CHECK::R(B)+K(A)
- K(a);N_GUARD,P-FLIGHT::R(C)
- R(b);N_GUARD::QAR1(E),XP(c)
- S(e);::R(B)+K(A)
- S(e);::R(B)+K(A),XS(e)
- Refutation
- K(a);N_SPINP(c),P-FLIGHT
- Try
- R(C);CHECK,XP(c)
- Refutation
- R(b);P_SPINR(b),XR(C)
- Try
- Q(E);CHECK,N_PINP(c)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- P(d);CHECK::R(B)+K(A)
- S(e);::R(B)+K(A),XS(e)
- Refutation
- K(a);N_SPINP(c),P-FLIGHT
- Try
- Q(E);
- Vars
- P(d);CHECK::R(B)+K(A)
- K(a);N_GUARD,N_SPINP(c),P-FLIGHT,S_CUTR(b)::B(D)+R(C),XP(c)
- R(b);N_GUARD::QAR1(E),XP(c)
- S(e);::R(B)+K(A)
- S(e);::R(B)+K(A),XS(e)
- Refutation
- K(a);N_SPINP(c),P-FLIGHT
- Try
- Q(E);
- Vars
- P(d);CHECK::R(B)+K(A)
- K(a);N_GUARD,N_SPINP(c),P-FLIGHT,S_CUTR(b)::B(D)+R(C),XP(c)
- R(b);N_GUARD::QAR1(E),XP(c)
- S(e);::R(B)+K(A)
- S(e);::R(B)+K(A),XS(e)
- Refutation
- K(a);N_SPINP(c),P-FLIGHT
- Try
- Q(E);
- Vars
- P(d);CHECK::R(B)+K(A)
- K(a);N_GUARD,N_SPINP(c),P-FLIGHT,S_CUTR(b)::B(D)+R(C),XP(c)
- R(b);N_GUARD::QAR1(E),XP(c)
- S(e);::R(B)+K(A)
- S(e);::R(B)+K(A),XS(e)
- Refutation
- K(a);N_SPINP(c),P-FLIGHT
- Try
- Q(E);CHECK,N_PINP(c)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(E);
- Vars
- P(d);CHECK::R(B)+K(A)
- K(a);N_GUARD,N_SPINP(c),P-FLIGHT,S_CUTR(b)::B(D)+R(C),XP(c)
- R(b);N_GUARD::QAR1(E),XP(c)
- S(e);::R(B)+K(A)
- S(e);::R(B)+K(A),XS(e)
- Refutation
- K(a);N_SPINP(c),P-FLIGHT
- Try
- Actual
- Q(E);N_PINP(c)
- Vars
- P(d);CHECK::R(B)+K(A)
- K(a);N_GUARD,P-FLIGHT,P_SPINP(c)::R(C)
- K(a);N_GUARD,P-FLIGHT,S_CUTR(b)::B(D)+R(C),XP(c)
- R(b);N_GUARD::QAR1(E),XP(c)
- S(e);::R(B)+K(A)
- S(e);::R(B)+K(A),XS(e)
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).