MESON Chess Problem Database
Problem Display
PID: 240262 (R7/1n2pP2/2P1kPKb/qN1pBp1p/N7/4p1Q1/8/3r4 w - - 0 1)
Heyl, Peter
Problem-Forum, 2007
#2
9 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sc7#
- 1...Qd2
- 2.Sc7#
- 1...Qc3
- 2.Sc7#
- 1...Qb4
- 2.Sc7#
- 1...Qc7
- 2.Sxc7#
- 1...Qxa4
- 2.Sc7#
- 1...Qa6
- 2.Sc7#
- 1...Qa7
- 2.Sc7#
- 1...Qxa8
- 2.Sc7#
- 1...Ra1
- 2.Sd4#
- 1...Rb1
- 2.Sd4#
- 1...Rc1
- 2.Sd4#
- 1...Re1
- 2.Sd4#
- 1...Rf1
- 2.Sd4#
- 1...Rg1
- 2.Sd4#
- 1...Rh1
- 2.Sd4#
- 1...Rd4
- 2.Sxd4#
- 1...Bg5
- 2.f8S#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...exf6
- 2.Re8#
- 1...Qe1
- Tries
- 1.Ba1?
- threat
- 2.Qe5#
- 1...Rxa1
- 2.Sd4#
- 1...exf6
- 2.Re8#
- 1...Qc3
- 2.Sc7#
- 1...Qc7
- 2.Sxc7#
- 1...Rg1
- 2.Sd4#
- 1...Rd4
- 2.Sxd4#
- 1...Bf4
- 2.f8S#
- 1...f4
- 2.Qh3#
- 1...d4!
- threat
- 1.Bb2?
- threat
- 2.Qe5#
- 1...exf6
- 2.Re8#
- 1...Qc3
- 2.Sc7#
- 1...Qc7
- 2.Sxc7#
- 1...Rg1
- 2.Sd4#
- 1...Rd4
- 2.Sxd4#
- 1...Bf4
- 2.f8S#
- 1...f4
- 2.Qh3#
- 1...d4!
- threat
- 1.Bc3?
- threat
- 2.Qe5#
- 1...Qxc3
- 2.Sc7#
- 1...exf6
- 2.Re8#
- 1...Qc7
- 2.Sxc7#
- 1...Rg1
- 2.Sd4#
- 1...Rd4
- 2.Sxd4#
- 1...Bf4
- 2.f8S#
- 1...f4
- 2.Qh3#
- 1...d4!
- threat
- 1.Bd4?
- threat
- 2.Qe5#
- 1...Rxd4
- 2.Sxd4#
- 1...exf6
- 2.Re8#
- 1...Qc7
- 2.Sxc7#
- 1...Bf4
- 2.f8S#
- 1...f4
- 2.Qh3#
- 1...Rg1!
- threat
- 1.Bc7?
- threat
- 2.Qe5#
- 1...Qxc7
- 2.Sxc7#
- 1...exf6
- 2.Re8#
- 1...Rg1
- 2.Sd4#
- 1...Bf4
- 2.f8S#
- 1...Sd6
- 2.Sc5#
- 1...f4
- 2.Qh3#
- 1...Qc3!
- threat
- 1.Bb8?
- threat
- 2.Qe5#
- 1...Qc3
- 2.Sc7#
- 1...Qc7
- 2.Sxc7#
- 1...Rg1
- 2.Sd4#
- 1...Bf4
- 2.f8S#
- 1...Sd6
- 2.Sc5#
- 1...f4
- 2.Qh3#
- 1...exf6!
- threat
- 1.f8Q?
- threat
- 2.Qxe7#
- 2.Qf7#
- 2.Qc8#
- 2.Qg8#
- 1...Qxa8
- 2.Sc7#
- 2.Qxe7#
- 2.Qf7#
- 1...exf6
- 2.Re8#
- 2.Qxf6#
- 2.Qf7#
- 2.Qe8#
- 1...Bf4
- 2.Qxe7#
- 1...d4
- 2.Qf7#
- 2.Qg8#
- 1...f4
- 2.Qxe7#
- 1...Qb4
- 2.Sc7#
- 2.Qf7#
- 2.Qc8#
- 2.Qg8#
- 1...Qc7
- 2.Sxc7#
- 2.Qf7#
- 2.Qg8#
- 1...Qd8
- 2.Qf7#
- 1...Sc5
- 2.Sxc5#
- 2.Qxe7#
- 2.Qf7#
- 2.Qg8#
- 1...Sd6
- 2.Sc5#
- 2.Qxe7#
- 1...Sd8
- 2.Sc5#
- 2.Qxe7#
- 1...Bxf8!
- threat
- 1.Ba1?
- Keys
- 1.Bd6!
- threat
- 2.Qe5#
- 1...Sxd6
- 2.Sc5#
- 1...exd6
- 2.Re8#
- 1...exf6
- 2.Re8#
- 1...Qc3
- 2.Sc7#
- 1...Rg1
- 2.Sd4#
- 1...Bf4
- 2.f8S#
- 1...f4
- 2.Qh3#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 18
- Sets
- Q(c);N_GUARD::S(C)
- Q(c);N_GUARD::S(C),XQ(c)
- Q(c);N_GUARD,XS(B)::S(C)
- Q(c);N_GUARD,XR(I)::S(C)
- R(a);N_GUARD::S(C)
- R(a);N_GUARD,P_PINQ(A)::S(C)
- R(a);N_GUARD::S(C),XR(a)
- B(h);N_GUARD::P=S
- S(i);N_GUARD::S(B),XS(i)
- S(i);N_GUARD::S(B)
- P(j);OGATEB,XP(F)::R(I)
- Tries
- Try
- B(D);
- Threat
- QAR1(A)
- Vars
- R(a);N_GUARD,XB(D)::S(C)
- P(j);OGATEB,XP(F)::R(I)
- Q(c);N_GUARD::S(C)
- Q(c);N_GUARD::S(C),XQ(c)
- R(a);N_GUARD,P_PINQ(A)::S(C)
- R(a);N_GUARD::S(C),XR(a)
- B(h);N_GUARD::P=S
- P(e);OGATEB::QAB(A)
- Refutation
- P(d);
- Try
- B(D);
- Threat
- QAR1(A)
- Vars
- P(j);OGATEB,XP(F)::R(I)
- Q(c);N_GUARD::S(C)
- Q(c);N_GUARD::S(C),XQ(c)
- R(a);N_GUARD,P_PINQ(A)::S(C)
- R(a);N_GUARD::S(C),XR(a)
- B(h);N_GUARD::P=S
- P(e);OGATEB::QAB(A)
- Refutation
- P(d);
- Try
- B(D);
- Threat
- QAR1(A)
- Vars
- Q(c);N_GUARD,XB(D)::S(C)
- P(j);OGATEB,XP(F)::R(I)
- Q(c);N_GUARD::S(C),XQ(c)
- R(a);N_GUARD,P_PINQ(A)::S(C)
- R(a);N_GUARD::S(C),XR(a)
- B(h);N_GUARD::P=S
- P(e);OGATEB::QAB(A)
- Refutation
- P(d);
- Try
- B(D);
- Threat
- QAR1(A)
- Vars
- R(a);XB(D)::S(C),XR(a)
- P(j);OGATEB,XP(F)::R(I)
- Q(c);N_GUARD::S(C),XQ(c)
- B(h);N_GUARD::P=S
- P(e);OGATEB::QAB(A)
- Refutation
- R(a);P_PINQ(A)
- Try
- B(D);
- Threat
- QAR1(A)
- Vars
- Q(c);XB(D)::S(C),XQ(c)
- P(j);OGATEB,XP(F)::R(I)
- R(a);N_GUARD,P_PINQ(A)::S(C)
- B(h);N_GUARD::P=S
- S(i);N_GUARD::S(B)
- P(e);OGATEB::QAB(A)
- Refutation
- Q(c);
- Try
- B(D);
- Threat
- QAR1(A)
- Vars
- Q(c);N_GUARD::S(C)
- Q(c);N_GUARD::S(C),XQ(c)
- R(a);N_GUARD,P_PINQ(A)::S(C)
- B(h);N_GUARD::P=S
- S(i);N_GUARD::S(B)
- P(e);OGATEB::QAB(A)
- Refutation
- P(j);XP(F)
- Try
- P(H);
- Threat
- DUALS(4)
- Vars
- B(h);::QAR1(H),XP(j)
- P(e);::QAR1(H),XP(j)
- Q(c);::QAB1(H)
- Refutation
- B(h);XQ(H)
- Try
- Actual
- B(D);
- Threat
- QAR1(A)
- Vars
- S(i);N_GUARD,XB(D)::S(B)
- P(j);OGATEB,XB(D)::R(I)
- P(j);OGATEB,XP(F)::R(I)
- Q(c);N_GUARD::S(C)
- R(a);N_GUARD,P_PINQ(A)::S(C)
- B(h);N_GUARD::P=S
- P(e);OGATEB::QAB(A)
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).