MESON Chess Problem Database
Problem Display
PID: 132774 (6B1/3N4/2n5/4P1K1/2p1k3/6Rp/3r1B2/1nQ2b2 w - - 0 1)
Shire, David J
1st Prize, Problem Observer, 2009
#2
7 + 7
| 136 | Problem Observer | 2010 |
| 56 | The Problemist | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Qe3#
- 2.Qf4#
- 1...Ra2
- 2.Qe3#
- 2.Qf4#
- 1...Rb2
- 2.Qe3#
- 2.Qf4#
- 1...Rc2
- 2.Qe3#
- 2.Qf4#
- 1...Re2
- 2.Qf4#
- 1...Rxf2
- 2.Qe3#
- 1...Rd3
- 2.Qf4#
- 1...Rd4
- 2.Re3#
- 2.Qe3#
- 2.Qf4#
- 1...Rd5
- 2.Bh7#
- 2.Qe3#
- 2.Qf4#
- 1...Rd6
- 2.Qe3#
- 2.Qf4#
- 1...Rxd7
- 2.Qe3#
- 2.Qf4#
- 1...Bd3
- 2.Qh1#
- 1...Sd4
- 2.Re3#
- 1...Sxe5
- 2.Sc5#
- 2.Sf6#
- 1...Rd1
- Tries
- 1.Bc5?
- threat
- 2.Re3#
- 1...Re2
- 2.Qf4#
- 1...Rg2
- 2.Qe3#
- 2.Qf4#
- 1...Rd3
- 2.Qf4#
- 1...Sd4!
- threat
- 1.Bb6?
- threat
- 2.Re3#
- 1...Re2
- 2.Qf4#
- 1...Rg2
- 2.Qe3#
- 2.Qf4#
- 1...Rd3
- 2.Qf4#
- 1...Sd4!
- threat
- 1.Bd5+?
- 1...Rxd5
- 2.Qe3#
- 2.Qf4#
- 1...Kxd5!
- 1...Rxd5
- 1.Rg4+?
- 1...Kd3
- 2.Bxc4#
- 2.Qxc4#
- 1...Kf3!
- 1...Kd3
- 1.Qxd2?
- threat
- 2.Bd5#
- 2.Bh7#
- 2.Re3#
- 2.Qe3#
- 2.Qf4#
- 2.Qd5#
- 1...Sxe5
- 2.Sc5#
- 2.Sf6#
- 2.Bd5#
- 2.Re3#
- 2.Qe3#
- 2.Qf4#
- 2.Qd4#
- 2.Qd5#
- 1...Bd3
- 2.Qe3#
- 2.Qf4#
- 1...Sc3
- 2.Bh7#
- 2.Re3#
- 2.Qe3#
- 2.Qf4#
- 1...Sb4
- 2.Bh7#
- 2.Re3#
- 2.Qe3#
- 2.Qf4#
- 2.Qd4#
- 1...Sd4
- 2.Re3#
- 2.Qe3#
- 2.Qf4#
- 2.Qxd4#
- 1...Se7
- 2.Re3#
- 2.Qe3#
- 2.Qf4#
- 2.Qd4#
- 1...Sxd2!
- threat
- 1.Qc3?
- threat
- 2.Sc5#
- 2.Sf6#
- 2.Re3#
- 2.Rg4#
- 2.Qe3#
- 2.Qf3#
- 1...Rxf2
- 2.Sc5#
- 2.Re3#
- 2.Qe3#
- 1...Rxd7
- 2.Re3#
- 2.Rg4#
- 2.Qe3#
- 1...Sxe5
- 2.Sc5#
- 2.Sf6#
- 2.Re3#
- 2.Qxe5#
- 2.Qe3#
- 1...Be2
- 2.Sc5#
- 2.Sf6#
- 2.Re3#
- 2.Qe3#
- 1...Re2
- 2.Sc5#
- 2.Sf6#
- 2.Rg4#
- 2.Qf3#
- 1...Rd3
- 2.Sc5#
- 2.Sf6#
- 1...Rd4
- 2.Re3#
- 2.Rg4#
- 2.Qe3#
- 2.Qf3#
- 1...Rd5
- 2.Sf6#
- 2.Bh7#
- 2.Re3#
- 2.Rg4#
- 2.Qe3#
- 2.Qf3#
- 1...Rd6
- 2.Sc5#
- 2.Re3#
- 2.Rg4#
- 2.Qe3#
- 2.Qf3#
- 1...Bg2
- 2.Sc5#
- 2.Sf6#
- 2.Re3#
- 2.Rg4#
- 2.Qe3#
- 1...Bd3
- 2.Sc5#
- 2.Sf6#
- 2.Re3#
- 1...Sd4
- 2.Re3#
- 2.Rg4#
- 2.Qe3#
- 1...Sxc3!
- threat
- 1.Qxc4+?
- 1...Rd4
- 2.Bd5#
- 2.Bh7#
- 2.Re3#
- 1...Sd4
- 2.Bd5#
- 2.Bh7#
- 2.Re3#
- 2.Qd5#
- 1...Bxc4!
- 1...Rd4
- 1.Bc5?
- Keys
- 1.Rd3!
- threat
- 2.Bh7#
- 1...Kxd3
- 2.Qxc4#
- 1...Rxf2
- 2.Qe3#
- 1...Rxd3
- 2.Qf4#
- 1...Bxd3
- 2.Qh1#
- 1...Sxe5
- 2.Sc5#
- 1...cxd3
- 2.Qxc6#
- 1...Sd4
- 2.Re3#
- 1...Se7
- 2.Qxc4#
- threat
- 1.Rd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(c);OGATE::QAR1(A)
- R(c);OGATE,XB(B)::QAR1(A)
- B(b);OGATE::QAB(A)
- S(g);SBLOCK::R1(C)
- Tries
- Try
- B(B);
- Threat
- R1(C)
- Vars
- R(c);OGATE::QAR1(A)
- Refutation
- S(g);
- Try
- B(B);
- Threat
- R1(C)
- Vars
- R(c);OGATE::QAR1(A)
- Refutation
- S(g);
- Try
- B(G);CHECK
- Refutation
- K(f);S_FLIGHT,XB(G)
- Try
- R(C);CHECK
- Refutation
- K(f);S_FLIGHT
- Try
- Q(A);XR(c)
- Threat
- DUALS(6)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(6)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);CHECK,XP(e)
- Refutation
- B(b);XQ(A)
- Try
- Actual
- R(C);
- Threat
- B(G)
- Vars
- K(f);S_FLIGHT,XR(C)::QAB1(A),XP(e)
- R(c);OGATE,XB(B)::QAR1(A)
- R(c);OGATE,SBLOCK,XR(C)::QAR1(A)
- B(b);OGATE,SBLOCK,XR(C)::QAB(A)
- S(g);SBLOCK,XP(D)::S(F)
- P(e);OGATE,SBLOCK,XR(C)::QAB(A),XS(g)
- S(g);SBLOCK::R1(C)
- S(g);N_GUARD::QAR2(A),XP(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).