MESON Chess Problem Database
Problem Display
PID: 241173 (2K1R3/3p4/R1N2p2/3k1Nb1/pP6/1Pp3rB/1P5B/1Q4nq w - - 0 1)
Heyl, Peter
Sachsische Zeitung, 2006
#2
11 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qe4
- 2.Qxe4#
- 1...Qxh2
- 2.Qe4#
- 1...Rg2
- 2.Sfe7#
- 2.Sce7#
- 2.Qd3#
- 2.Qe4#
- 1...Rd3
- 2.Qxd3#
- 1...Rf3
- 2.Sfe7#
- 2.Sce7#
- 2.Qe4#
- 1...Rxh3
- 2.Sce7#
- 1...Rg4
- 2.Sce7#
- 1...Sf3
- 2.Qe4#
- 1...d6
- 2.Sfe7#
- 1...Qe4
- Tries
- 1.Kxd7?
- threat
- 2.Sfe7#
- 2.Ra5#
- 1...Qe4
- 2.Ra5#
- 2.Qxe4#
- 1...Rd3
- 2.Ra5#
- 2.Qxd3#
- 1...Re3
- 2.Ra5#
- 1...Be3
- 2.Sfe7#
- 1...c2
- 2.Ra5#
- 1...axb3!
- threat
- 1.Scd4?
- threat
- 2.Ra5#
- 2.Rd6#
- 1...Bf4
- 2.Ra5#
- 1...d6
- 2.Ra5#
- 2.Rxd6#
- 1...axb3!
- threat
- 1.Sa5?
- threat
- 2.Rd6#
- 1...d6
- 2.Rxd6#
- 1...Bf4!
- threat
- 1.Se5?
- threat
- 2.Ra5#
- 2.Rd6#
- 1...fxe5
- 2.Rd6#
- 1...Rd3
- 2.Qxd3#
- 1...Be3
- 2.Rd6#
- 1...d6
- 2.Ra5#
- 2.Rxd6#
- 1...c2!
- threat
- 1.Sa7?
- threat
- 2.Ra5#
- 2.Rd6#
- 1...Be3
- 2.Rd6#
- 1...Bf4
- 2.Ra5#
- 1...d6
- 2.Ra5#
- 2.Rxd6#
- 1...axb3!
- threat
- 1.Sb8?
- threat
- 2.Ra5#
- 2.Rd6#
- 1...Be3
- 2.Rd6#
- 1...Bf4
- 2.Ra5#
- 1...d6
- 2.Ra5#
- 2.Rxd6#
- 1...axb3!
- threat
- 1.Sd8?
- threat
- 2.Ra5#
- 2.Rd6#
- 1...Be3
- 2.Rd6#
- 1...Bf4
- 2.Ra5#
- 1...d6
- 2.Ra5#
- 2.Rxd6#
- 1...axb3!
- threat
- 1.Bxg3?
- threat
- 2.Sfe7#
- 2.Sce7#
- 2.Qd3#
- 1...Qxh3
- 2.Sce7#
- 2.Qd3#
- 2.Qe4#
- 1...Sxh3
- 2.Sce7#
- 2.Qd3#
- 2.Qxh1#
- 1...axb3
- 2.Qd3#
- 1...dxc6
- 2.Qd3#
- 1...Qf3
- 2.Sfe7#
- 2.Sce7#
- 1...Qe4
- 2.Qxe4#
- 1...Be3
- 2.Sxe3#
- 2.Sfe7#
- 2.Sce7#
- 1...Bf4
- 2.Qd3#
- 1...Se2
- 2.Sfe7#
- 2.Sce7#
- 2.Qxh1#
- 1...Sf3
- 2.Sfe7#
- 2.Sce7#
- 2.Qe4#
- 1...d6
- 2.Sfe7#
- 2.Qd3#
- 1...c2!
- threat
- 1.Bg2+?
- 1...Rxg2
- 2.Sce7#
- 2.Qd3#
- 2.Qe4#
- 1...Rf3
- 2.Sce7#
- 2.Qd3#
- 2.Qe4#
- 1...Sf3
- 2.Qd3#
- 2.Qe4#
- 1...Qxg2!
- 1...Rxg2
- 1.Qd1+?
- 1...Rd3
- 2.Qxd3#
- 1...Bd2!
- 1...Rd3
- 1.Qf1?
- threat
- 2.Qc4#
- 2.Qb5#
- 1...axb3
- 2.Qb5#
- 1...dxc6
- 2.Qc4#
- 1...Qe4
- 2.Qb5#
- 1...Rd3
- 2.Qxd3#
- 1...Rg4
- 2.Qb5#
- 1...Be3
- 2.Qc4#
- 1...Se2!
- threat
- 1.Kxd7?
- Keys
- 1.bxc3!
- threat
- 2.c4#
- 1...Rxc3
- 2.Se7#
- 1...axb3
- 2.Qxb3#
- 1...Qe4
- 2.Qxe4#
- 1...Rg4
- 2.Sce7#
- threat
- 1.bxc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- Q(b);N_GUARD::QAB1(A),XQ(b)
- Q(b);N_GUARD,XB(C)::QAB1(A)
- R(d);N_GUARD::QAR2(A),XR(d)
- R(d);XB(E)::S(I)
- R(d);::S(I)
- S(a);S_CUTQ(b)::QAB1(A)
- P(i);SBLOCK::S(G)
- Tries
- Try
- K(J);S_FLIGHT,XP(i)
- Threat
- DUALS(2)
- Vars
- R(d);::R(H)
- B(g);::S(G)
- P(c);::R(H)
- Refutation
- P(e);XP(D)
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- B(g);::R(H)
- Refutation
- P(e);XP(D)
- Try
- S(I);
- Threat
- R1(H)
- Vars
- P(i);::R1(H),XP(i)
- Refutation
- B(g);
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- P(h);XS(I)::R1(H)
- R(d);N_GUARD::QAR2(A),XR(d)
- B(g);::R1(H)
- Refutation
- P(c);
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- B(g);::R1(H)
- B(g);::R(H)
- Refutation
- P(e);XP(D)
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- B(g);::R1(H)
- B(g);::R(H)
- Refutation
- P(e);XP(D)
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- B(g);::R1(H)
- B(g);::R(H)
- Refutation
- P(e);XP(D)
- Try
- B(C);XR(d)
- Threat
- DUALS(3)
- Vars
- P(e);XP(D)::QAR2(A)
- P(i);XS(I)::QAR2(A)
- Q(b);N_GUARD::QAB1(A),XQ(b)
- B(g);::QAR2(A)
- Refutation
- P(c);
- Try
- B(E);CHECK
- Refutation
- Q(b);XB(E)
- Try
- Q(A);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAR2(A),XR(d)
- Refutation
- B(g);P_SPINB(g)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(e);XP(D)::QAR2(A)
- P(i);XS(I)::QAB1(A)
- Q(b);::QAR2(A)
- R(d);N_GUARD::QAR2(A),XR(d)
- R(d);::QAR2(A)
- B(g);::QAB1(A)
- Refutation
- S(a);
- Try
- Actual
- P(B);XP(c)
- Threat
- P(B)
- Vars
- R(d);P_PINS(I),XP(B)::S(G)
- P(e);OGATE,XP(D)::QAB(A),XP(e)
- Q(b);N_GUARD::QAB1(A),XQ(b)
- R(d);::S(I)
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).