MESON Chess Problem Database
Problem Display
PID: 232605 (1Q1n2Bn/4p3/2N1pk2/3R2RK/r5P1/2qP1N2/1B6/b7 w - - 0 1)
Heyl, Peter
Freie Presse, 2010
#2
10 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Qf4#
- 1...Qe5
- 2.Qxe5#
- 1...Ra2
- 2.Qf4#
- 1...Ra3
- 2.Qf4#
- 1...Rd4
- 2.Qe5#
- 1...Rf4
- 2.Qxf4#
- 1...Ra5
- 2.Qf4#
- 1...Ra6
- 2.Qf4#
- 1...Ra7
- 2.Qf4#
- 1...Ra8
- 2.Qf4#
- 1...Sg6
- 2.Rxg6#
- 1...Sf7
- 2.Rg6#
- 1...Qd4
- Tries
- 1.Sfe5?
- threat
- 2.Sd7#
- 1...Qxe5
- 2.Qxe5#
- 1...Sg6
- 2.Rxg6#
- 1...Ra7!
- threat
- 1.Scd4?
- threat
- 2.Qf4#
- 2.Qe5#
- 1...Qxd4
- 2.Qf4#
- 1...Qxd3
- 2.Qe5#
- 1...Rxd4
- 2.Qe5#
- 1...Sg6
- 2.Rxg6#
- 1...Qe1
- 2.Qf4#
- 1...Qd2
- 2.Qe5#
- 1...Qc1
- 2.Qe5#
- 1...Sc6
- 2.Qf4#
- 1...Sdf7
- 2.Qf4#
- 1...Shf7
- 2.Rg6#
- 2.Qf4#
- 1...e5
- 2.Qxe5#
- 1...Qc7!
- threat
- 1.Sce5?
- threat
- 2.Sd7#
- 1...Qxe5
- 2.Qxe5#
- 1...Sg6
- 2.Rxg6#
- 1...Ra7!
- threat
- 1.Bxc3+?
- 1...Rd4
- 2.Qf4#
- 2.Qe5#
- 1...e5
- 2.Qxe5#
- 1...Bxc3!
- 1...Rd4
- 1.Rd4?
- threat
- 2.Qf4#
- 2.Qe5#
- 1...Qxd4
- 2.Qf4#
- 1...Qxd3
- 2.Rf4#
- 2.Qe5#
- 1...Rxd4
- 2.Qe5#
- 1...Sxc6
- 2.Qf4#
- 1...Sg6
- 2.Rxg6#
- 1...Qe1
- 2.Rf4#
- 2.Qf4#
- 1...Qd2
- 2.Rf4#
- 2.Qe5#
- 1...Qa5
- 2.Rf4#
- 1...Qc1
- 2.Rf4#
- 2.Qe5#
- 1...Qc5
- 2.Rf4#
- 1...Sdf7
- 2.Qf4#
- 1...Shf7
- 2.Rg6#
- 2.Qf4#
- 1...e5
- 2.Qxe5#
- 1...Ra5!
- threat
- 1.Qd6?
- threat
- 2.Rdf5#
- 2.Qxe7#
- 1...Sxc6
- 2.Rdf5#
- 2.Qxe6#
- 1...Sg6
- 2.Rxg6#
- 1...Ra7
- 2.Rdf5#
- 2.Qf4#
- 1...Qe5
- 2.Qxe5#
- 2.Qxe7#
- 1...Rf4
- 2.Qxf4#
- 2.Qxe7#
- 1...Ra5
- 2.Qf4#
- 2.Qxe7#
- 1...exd6!
- threat
- 1.Qc7?
- threat
- 2.Qxe7#
- 1...Sg6
- 2.Rxg6#
- 1...Ra7
- 2.Qf4#
- 1...Sxc6!
- threat
- 1.Qxd8?
- threat
- 2.Qxe7#
- 1...Sg6
- 2.Rxg6#
- 1...Ra7!
- threat
- 1.d4?
- threat
- 2.Qf4#
- 2.Qe5#
- 1...Qxd4
- 2.Qf4#
- 1...Qxf3
- 2.Qe5#
- 1...Rxd4
- 2.Qe5#
- 1...Sxc6
- 2.Qf4#
- 1...Sg6
- 2.Rxg6#
- 1...Qe1
- 2.Qf4#
- 1...Qd2
- 2.Qe5#
- 1...Qc1
- 2.Qe5#
- 1...Qc2
- 2.Qe5#
- 1...Qd3
- 2.Qe5#
- 1...Sdf7
- 2.Qf4#
- 1...Shf7
- 2.Rg6#
- 2.Qf4#
- 1...e5
- 2.Qxe5#
- 1...Qe3!
- threat
- 1.Sfe5?
- Keys
- 1.Sfd4!
- threat
- 2.Qf4#
- 2.Qe5#
- 1...Qxd4
- 2.Qf4#
- 1...Qxd3
- 2.Qe5#
- 1...Rxd4
- 2.Qe5#
- 1...Sxc6
- 2.Qf4#
- 1...Sg6
- 2.Rxg6#
- 1...Qe1
- 2.Qf4#
- 1...Qd2
- 2.Qe5#
- 1...Qc1
- 2.Qe5#
- 1...Sdf7
- 2.Qf4#
- 1...Shf7
- 2.Rg6#
- 2.Qf4#
- 1...e5
- 2.Qxe5#
- threat
- 1.Sfd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 9
- Sets
- Q(b);S_CUTR(c)::QAR2(I)
- Q(b);N_GUARD,P_PINR(F)::QAB1(I),XQ(b)
- R(c);N_GUARD::QAR2(I)
- R(c);N_SPINQ(b),S_CUTQ(b)::QAB1(I)
- R(c);N_GUARD::QAR2(I),XR(c)
- S(h);N_GUARD::R1(F),XS(h)
- S(h);N_GUARD::R1(F)
- Tries
- Try
- S(C);N_PINQ(b)
- Threat
- S(C)
- Vars
- Q(b);OGATE,P_PINR(F),P_SPINQ(b),XS(C)::QAB1(I),XQ(b)
- S(h);N_GUARD::R1(F),XS(h)
- Refutation
- R(c);
- Try
- S(H);N_PINQ(b)
- Threat
- DUALS(2)
- Vars
- Q(b);P_SPINQ(b),XS(H)::QAR2(I)
- Q(b);XP(B)::QAB1(I)
- R(c);XS(H)::QAB1(I)
- S(h);N_GUARD::R1(F),XS(h)
- Q(b);::QAR2(I)
- Q(b);::QAB1(I)
- S(g);::QAR2(I)
- P(d);::QAB1(I),XP(d)
- Refutation
- Q(b);
- Try
- S(H);N_PINQ(b)
- Threat
- S(H)
- Vars
- Q(b);OGATE,P_PINR(F),P_SPINQ(b),XS(H)::QAB1(I),XQ(b)
- S(h);N_GUARD::R1(F),XS(h)
- Refutation
- R(c);
- Try
- B(A);CHECK,XQ(b)
- Vars
- P(d);P_SPINP(d)::QAB1(I),XP(d)
- Refutation
- B(a);XB(A)
- Try
- R(E);N_PINQ(b)
- Threat
- DUALS(2)
- Vars
- Q(b);P_SPINQ(b),XR(E)::QAR2(I)
- R(c);XR(E)::QAB1(I)
- S(g);XS(H)::QAR2(I)
- S(h);N_GUARD::R1(F),XS(h)
- Q(b);P_PINR(F)::B(A)+R(E),DCHECK
- S(g);::QAR2(I)
- P(d);::QAB1(I),XP(d)
- Refutation
- R(c);P_PINR(F)
- Try
- Q(I);P_PINP(d)
- Threat
- DUALS(2)
- Vars
- S(h);N_GUARD::R1(F),XS(h)
- Refutation
- P(f);N_SPINP(d),XQ(I)
- Try
- Q(I);
- Threat
- QAB1(I),XP(f)
- Vars
- S(h);N_GUARD::R1(F),XS(h)
- R(c);N_GUARD::QAR2(I)
- Refutation
- S(g);XS(H)
- Try
- Q(I);P_PINP(f),XS(g)
- Threat
- QAB1(I),XP(f)
- Vars
- S(h);N_GUARD::R1(F),XS(h)
- Refutation
- R(c);
- Try
- P(B);N_PINQ(b)
- Threat
- DUALS(2)
- Vars
- Q(b);P_SPINQ(b),XP(B)::QAR2(I)
- Q(b);P_PINP(D),XS(C)::QAB1(I)
- R(c);XP(B)::QAB1(I)
- S(g);XS(H)::QAR2(I)
- S(h);N_GUARD::R1(F),XS(h)
- Q(b);::QAR2(I)
- Q(b);::QAB1(I)
- S(g);::QAR2(I)
- P(d);::QAB1(I),XP(d)
- Refutation
- Q(b);
- Try
- Actual
- S(C);N_PINQ(b)
- Threat
- DUALS(2)
- Vars
- Q(b);P_SPINQ(b),XS(C)::QAR2(I)
- Q(b);XP(B)::QAB1(I)
- R(c);XS(C)::QAB1(I)
- S(g);XS(H)::QAR2(I)
- S(h);N_GUARD::R1(F),XS(h)
- Q(b);::QAR2(I)
- Q(b);::QAB1(I)
- S(g);::QAR2(I)
- P(d);::QAB1(I),XP(d)
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).