MESON Chess Problem Database
Problem Display
PID: 233435 (7B/3p1K2/5R2/1p2k3/1N2p3/1n5P/5P2/5Q2 w - - 0 1)
Kupper, Josef
Freie Presse, 2010
#2
7 + 5
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kd4
- 2.Rf5#
- 2.Rc6#
- 1...Sa1
- 2.Qxa1#
- 1...Sd2
- 2.Qa1#
- 1...Sa5
- 2.Qa1#
- 1...Sc5
- 2.Qa1#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Rf3#
- 1...Kd4
- Tries
- 1.Ke7?
- threat
- 2.Rf3#
- 2.Rf7#
- 2.Rf8#
- 1...Kd4
- 2.Rf5#
- 2.Rc6#
- 1...e3!
- threat
- 1.Qe2?
- 1...Kd4
- 2.Rf5#
- 2.Rc6#
- 1...e3
- 2.Qxe3#
- 1...Sc1
- 2.Qb2#
- 1...Sa1
- 2.Qb2#
- 1...Sd4
- 2.f4#
- 1...Sa5
- 2.Qb2#
- 1...Sc5
- 2.Qb2#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Rf3#
- 1...Sd2!
- 1...Kd4
- 1.Qd3?
- threat
- 2.Rf3#
- 2.Qd5#
- 2.Qd6#
- 1...Sd4
- 2.Qg3#
- 1...e3
- 2.Rf3#
- 2.Rf5#
- 2.Qxe3#
- 2.Qd5#
- 2.f4#
- 1...d5
- 2.Sc6#
- 2.Qxd5#
- 1...d6
- 2.Sc6#
- 2.Rf3#
- 2.Qd5#
- 2.Qxd6#
- 1...exd3!
- threat
- 1.Qc4?
- threat
- 2.Qd5#
- 1...d5
- 2.Sc6#
- 2.Qxd5#
- 1...bxc4!
- threat
- 1.Qxb5+?
- 1...Kd4
- 2.Rf3#
- 2.Rf4#
- 2.Rf5#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 1...d5
- 2.Sc6#
- 2.Qxd5#
- 1...Sc5!
- 1...Kd4
- 1.Qc1?
- 1...Kd4
- 2.Rf3#
- 2.Rf4#
- 2.Rf5#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 1...e3
- 2.Qxe3#
- 1...Sa1
- 2.Qb2#
- 2.Qxa1#
- 2.Qc3#
- 1...Sd2
- 2.Qb2#
- 2.Qa1#
- 2.Qc3#
- 1...Sd4
- 2.Qf4#
- 1...Sa5
- 2.Qb2#
- 2.Qa1#
- 2.Qc3#
- 1...Sc5
- 2.Qb2#
- 2.Qa1#
- 2.Qc3#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Rf3#
- 2.Rf4#
- 1...Sxc1!
- 1...Kd4
- 1.Qd1?
- threat
- 2.Rf3#
- 2.Qd5#
- 2.Qd6#
- 1...Sd2
- 2.Qa1#
- 1...e3
- 2.Qd5#
- 1...d5
- 2.Sc6#
- 2.Qxd5#
- 1...d6
- 2.Sc6#
- 2.Rf3#
- 2.Qd5#
- 2.Qxd6#
- 1...Sd4!
- threat
- 1.Qh1?
- 1...Kd4
- 2.Rc6#
- 1...Sa1
- 2.Qxa1#
- 1...Sd2
- 2.Qa1#
- 1...Sd4
- 2.Qh2#
- 1...Sa5
- 2.Qa1#
- 1...Sc5
- 2.Qa1#
- 1...e3
- 2.Qd5#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Rf3#
- 1...Sc1!
- 1...Kd4
- 1.Ke7?
- Keys
- 1.Qe1!
- 1...Kd4
- 2.Rc6#
- 1...e3
- 2.Qxe3#
- 1...Sc1
- 2.Qc3#
- 1...Sa1
- 2.Qc3#
- 2.Qxa1#
- 1...Sd2
- 2.Qa1#
- 1...Sd4
- 2.f4#
- 1...Sa5
- 2.Qc3#
- 2.Qa1#
- 1...Sc5
- 2.Qc3#
- 2.Qa1#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Rf3#
- 1...Kd4
- 1.Qe1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- S(a);N_GUARD::QAB(A),XS(a)
- S(a);N_GUARD::QAB(A)
- P(e);N_GUARD,SBLOCK::S(D)
- P(e);SBLOCK::B(G)+R(E)
- Tries
- Try
- K(F);P-FLIGHT
- Threat
- DUALS(3)
- Refutation
- P(b);
- Try
- Q(A);P_PINP(b)
- Vars
- P(b);OGATEB::QAR2(A),XP(b)
- S(a);N_GUARD::QAB(A)
- S(a);SBLOCK::P(B)
- P(e);N_GUARD,SBLOCK::S(D)
- P(e);SBLOCK::B(G)+R(E)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- S(a);SBLOCK::QAB(A)
- Refutation
- P(b);XQ(A)
- Try
- Q(A);
- Threat
- QAR1(A)
- Refutation
- P(c);XQ(A)
- Try
- Q(A);CHECK,XP(c)
- Refutation
- S(a);P_SPINS(a)
- Try
- Q(A);
- Vars
- P(b);OGATEB::QAR2(A),XP(b)
- S(a);SBLOCK::QAB1(A)
- P(e);N_GUARD,SBLOCK::S(D)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- S(a);N_GUARD::QAB(A)
- P(b);::QAR1(A)
- Refutation
- S(a);
- Try
- Q(A);
- Vars
- K(d);S_FLIGHT::B(G)+R(E)
- S(a);N_GUARD::QAB(A),XS(a)
- S(a);N_GUARD::QAB(A)
- S(a);SBLOCK::QAB(A)
- P(b);OGATE::QAR1(A)
- P(e);N_GUARD,SBLOCK::S(D)
- P(e);SBLOCK::B(G)+R(E)
- Refutation
- S(a);
- Try
- Actual
- Q(A);P_PINP(b)
- Vars
- K(d);N_SPINP(b),S_FLIGHT::B(G)+R(E)
- P(b);OGATEB::QAR2(A),XP(b)
- S(a);N_GUARD::QAB(A)
- S(a);SBLOCK::P(B)
- P(e);N_GUARD,SBLOCK::S(D)
- P(e);SBLOCK::B(G)+R(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).