MESON Chess Problem Database
Problem Display
PID: 37472 (8/1Kp5/5n2/2pN1N2/P1k2P2/2p2p2/P3R3/3Q1n1B w - - 0 1)
Schneider, Michael
Schweizerische Schachzeitung, 1987
#2
9 + 7
| 3454 | kunstschach (1987-1996) (Hoffmann) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Sh2
- 2.Sfe3#
- 1...Se3
- 2.Sfxe3#
- 1...Sg3
- 2.Sfe3#
- 1...Se4
- 2.Rxe4#
- 1...Sg4
- 2.Re4#
- 1...Sxd5
- 2.Re4#
- 1...Sh5
- 2.Re4#
- 1...Sd7
- 2.Re4#
- 1...Sh7
- 2.Re4#
- 1...Se8
- 2.Re4#
- 1...Sg8
- 2.Re4#
- 1...c2
- 2.Rxc2#
- 1...fxe2
- 2.Qxe2#
- 1...c6
- 2.Sd6#
- 1...Sh2
- Tries
- 1.Bxf3?
- 1...Sxd5
- 2.Re4#
- 1...Sh2
- 2.Sfe3#
- 1...Se3
- 2.Sfxe3#
- 1...Sg3
- 2.Sfe3#
- 1...Se4
- 2.Rxe4#
- 1...Sg4
- 2.Re4#
- 1...Sh5
- 2.Re4#
- 1...Sd7
- 2.Re4#
- 1...Sh7
- 2.Re4#
- 1...Se8
- 2.Re4#
- 1...Sg8
- 2.Re4#
- 1...c2
- 2.Rxc2#
- 2.Qxc2#
- 1...c6
- 2.Sd6#
- 1...Sd2!
- 1...Sxd5
- 1.Rd2?
- threat
- 2.Qb3#
- 2.Qxf1#
- 1...Sxd5
- 2.Qb3#
- 1...cxd2
- 2.Qb3#
- 1...Sh2
- 2.Sfe3#
- 2.Qb3#
- 1...Se3
- 2.Sfxe3#
- 2.Qb3#
- 1...Sg3
- 2.Sfe3#
- 2.Qb3#
- 1...c2
- 2.Rxc2#
- 2.Qxc2#
- 2.Qxf1#
- 1...Sxd2!
- threat
- 1.Re3?
- threat
- 2.Rxc3#
- 2.Qb3#
- 2.Qd3#
- 1...Sxe3
- 2.Sfxe3#
- 1...Sxd5
- 2.Re4#
- 2.Qb3#
- 1...Se4
- 2.Rxe4#
- 2.Qb3#
- 2.Qd3#
- 1...c2
- 2.Rc3#
- 2.Qd3#
- 1...Sd2!
- threat
- 1.Re5?
- threat
- 2.Qxf1#
- 1...Sxd5
- 2.Re4#
- 1...Sh2
- 2.Sfe3#
- 1...Se3
- 2.Sfxe3#
- 1...Sg3
- 2.Sfe3#
- 1...Sd2!
- threat
- 1.Qxf1?
- threat
- 2.Rd2#
- 2.Re5#
- 1...Kxd5
- 2.Re5#
- 1...Sxd5
- 2.Rb2#
- 2.Re4#
- 1...fxe2
- 2.Qxe2#
- 1...Se4
- 2.Rd2#
- 1...Kd3!
- threat
- 1.Bxf3?
- Keys
- 1.Qb1!
- 1...Kxd5
- 2.Qd3#
- 1...Sxd5
- 2.Re4#
- 2.Qe4#
- 2.Qb5#
- 1...fxe2
- 2.Qb5#
- 1...c2
- 2.Qb3#
- 1...f2
- 2.Qb5#
- 1...Sd2
- 2.Sde3#
- 1...Sh2
- 2.Sde3#
- 1...Se3
- 2.Sdxe3#
- 1...Sg3
- 2.Sde3#
- 1...Se4
- 2.Qxe4#
- 1...Sg4
- 2.Qe4#
- 1...Sh5
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...Se8
- 2.Qe4#
- 1...Sg8
- 2.Qe4#
- 1...c6
- 2.Sb6#
- 1...Kxd5
- 1.Qb1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 13
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(f);N_GUARD::R(D),XS(f)
- S(f);N_GUARD::R(D)
- S(f);N_GUARD,XS(G)::R(D)
- P(b);OGATEB::R(D),XP(b)
- P(c);OGATE,XR(D)::QAB(A),XP(c)
- P(g);N_GUARD::S(H)
- Tries
- Try
- B(B);XP(c)
- Vars
- S(f);N_GUARD,XS(G)::R(D)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(f);N_GUARD::R(D),XS(f)
- S(f);N_GUARD::R(D)
- P(g);N_GUARD::S(H)
- Refutation
- S(a);
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- S(f);XS(G)::QAB1(A)
- P(b);XR(D)::QAB1(A)
- Refutation
- S(a);XR(D)
- Try
- R(D);
- Threat
- DUALS(3)
- Vars
- S(a);XR(D)::S(H),XS(a)
- Refutation
- S(a);
- Try
- R(D);
- Threat
- QAB(A),XS(a)
- Vars
- S(f);N_GUARD,XS(G)::R(D)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- Refutation
- S(a);
- Try
- Q(A);XS(a)
- Threat
- DUALS(2)
- Vars
- K(d);P_SPINP(c),S_FLIGHT,XS(G)::R1(D)
- P(c);OGATE,P_SPINP(c),XR(D)::QAB(A),XP(c)
- S(f);::QAB(A)+R(D)
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- Q(A);
- Vars
- K(d);P_SPINP(c),S_FLIGHT,XS(G)::QAR2(A)
- P(c);XR(D)::QAB1(A)
- P(b);::QAB1(A)
- P(c);::QAB1(A)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(f);N_GUARD::QAR2(A),XS(f)
- S(f);N_GUARD::QAR2(A)
- P(g);N_GUARD::S(G)
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).