MESON Chess Problem Database
Problem Display
PID: 72029 (5B2/8/4Pp2/2qP4/N2kPQ2/1PrP4/1P1NB2K/7b w - - 0 1)
Heyl, Peter
Die Schwalbe, 2006
#2
12 + 5
SOLUTION
- SOUND
- Sets
- 1...Qa3
- 2.bxc3#
- 1...Qb6
- 2.bxc3#
- 1...Qd6
- 2.bxc3#
- 1...Qa7
- 2.bxc3#
- 1...Qe7
- 2.bxc3#
- 1...Qxf8
- 2.bxc3#
- 1...Qb5
- 2.bxc3#
- 1...Qxd5
- 2.bxc3#
- 1...Rxb3
- 2.Sxb3#
- 2.Bxc5#
- 1...Rxd3
- 2.Bxc5#
- 1...Bf3
- 2.Sxf3#
- 1...Bxe4
- 2.Qxe4#
- 1...f5
- 2.Bg7#
- 1...Qa3
- Tries
- 1.Kxh1?
- threat
- 2.Sf3#
- 1...Rxd3
- 2.Bxc5#
- 1...Rc1+!
- threat
- 1.Sf1?
- threat
- 2.Qxf6#
- 1...Qxf8
- 2.bxc3#
- 1...Qxd5
- 2.bxc3#
- 1...Rxd3
- 2.Bxc5#
- 1...Bxe4
- 2.Qxe4#
- 1...Qd6
- 2.bxc3#
- 1...Qe7
- 2.bxc3#
- 1...f5
- 2.Bg7#
- 1...Qc7!
- threat
- 1.Bh6?
- threat
- 2.Qxf6#
- 1...Qxd5
- 2.bxc3#
- 1...Bxe4
- 2.Qxe4#
- 1...Qd6
- 2.bxc3#
- 1...Qe7
- 2.bxc3#
- 1...Qf8
- 2.bxc3#
- 1...f5
- 2.Bg7#
- 1...Qc7!
- threat
- 1.Be7?
- threat
- 2.Bxf6#
- 1...Qxe7
- 2.bxc3#
- 1...Qxd5
- 2.bxc3#
- 1...Bxe4
- 2.Qxe4#
- 1...Qd6
- 2.bxc3#
- 1...f5
- 2.Bf6#
- 1...Qc7!
- threat
- 1.Bg7?
- threat
- 2.Bxf6#
- 1...Qxd5
- 2.bxc3#
- 1...Bxe4
- 2.Qxe4#
- 1...Qd6
- 2.bxc3#
- 1...Qe7
- 2.bxc3#
- 1...Qf8
- 2.bxc3#
- 1...Qc7!
- threat
- 1.e5+?
- 1...Be4
- 2.Qxe4#
- 1...Kxd5!
- 1...Be4
- 1.Kxh1?
- Keys
- 1.Bd6!
- threat
- 2.Qf2#
- 1...Qxd6
- 2.bxc3#
- 1...Rxd3
- 2.Bxc5#
- 1...Bxe4
- 2.Qxe4#
- 1...Bf3
- 2.Sxf3#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- Q(d);N_GUARD::P(A),XR(b)
- Q(d);N_GUARD,P_PINQ(I)::P(A),XR(b)
- Q(d);N_GUARD,XB(L)::P(A),XR(b)
- Q(d);N_GUARD,XP(J)::P(A),XR(b)
- R(b);N_GUARD,XP(F)::B(L),XQ(d)
- B(a);N_GUARD::S(B),XB(a)
- B(a);OGATE,P_SPINB(a),XP(H)::QAR1(I),XB(a)
- P(e);OGATEB::B(L)
- Tries
- Try
- K(D);P-FLIGHT,XB(a)
- Threat
- S(B)
- Vars
- R(b);N_GUARD,XP(F)::B(L),XQ(d)
- Refutation
- R(b);CHECK
- Try
- S(B);
- Threat
- QAB(I),XP(e)
- Vars
- Q(d);N_GUARD,XB(L)::P(A),XR(b)
- Q(d);N_GUARD,XP(J)::P(A),XR(b)
- R(b);N_GUARD,XP(F)::B(L),XQ(d)
- B(a);OGATE,P_SPINB(a),XP(H)::QAR1(I),XB(a)
- Q(d);N_GUARD,P_PINQ(I)::P(A),XR(b)
- Q(d);N_GUARD::P(A),XR(b)
- P(e);OGATEB::B(L)
- Refutation
- Q(d);P_PINQ(I)
- Try
- B(L);
- Threat
- QAB(I),XP(e)
- Vars
- Q(d);N_GUARD,XP(J)::P(A),XR(b)
- B(a);OGATE,P_SPINB(a),XP(H)::QAR1(I),XB(a)
- Q(d);N_GUARD,P_PINQ(I)::P(A),XR(b)
- Q(d);N_GUARD::P(A),XR(b)
- P(e);OGATEB::B(L)
- Refutation
- Q(d);P_PINQ(I)
- Try
- B(L);
- Threat
- B(L),XP(e)
- Vars
- Q(d);N_GUARD,XB(L)::P(A),XR(b)
- Q(d);N_GUARD,XP(J)::P(A),XR(b)
- B(a);OGATE,P_SPINB(a),XP(H)::QAR1(I),XB(a)
- Q(d);N_GUARD,P_PINQ(I)::P(A),XR(b)
- P(e);::B(L)
- Refutation
- Q(d);P_PINQ(I)
- Try
- B(L);P_PINP(e)
- Threat
- B(L),XP(e)
- Vars
- Q(d);N_GUARD,XP(J)::P(A),XR(b)
- B(a);OGATE,P_SPINB(a),XP(H)::QAR1(I),XB(a)
- Q(d);N_GUARD,P_PINQ(I)::P(A),XR(b)
- Q(d);N_GUARD::P(A),XR(b)
- Refutation
- Q(d);P_PINQ(I)
- Try
- P(H);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::QAR1(I),XB(a)
- Refutation
- K(c);P-FLIGHT,XP(J)
- Try
- Actual
- B(L);
- Threat
- QAB(I)
- Vars
- Q(d);N_GUARD,P_PINQ(I),XB(L)::P(A),XR(b)
- R(b);N_GUARD,XP(F)::B(L),XQ(d)
- B(a);OGATE,P_SPINB(a),XP(H)::QAR1(I),XB(a)
- B(a);N_GUARD::S(B),XB(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).