MESON Chess Problem Database
Problem Display
PID: 75909 (B3Q2K/1r5p/4PN1p/2p5/2p1Pb1R/2P1kn1R/2P1p3/4B3 w - - 0 1)
Heyl, Peter
Die Schwalbe, 2007
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Sg4#
- 1...Rb2
- 2.Sg4#
- 1...Rb3
- 2.Sg4#
- 1...Rb4
- 2.Sg4#
- 1...Rb5
- 2.Sg4#
- 1...Rb6
- 2.Sg4#
- 1...Ra7
- 2.Sg4#
- 1...Rc7
- 2.Sg4#
- 1...Rd7
- 2.Sg4#
- 1...Re7
- 2.Sg4#
- 1...Rf7
- 2.Sg4#
- 1...Rb8
- 2.Sg4#
- 1...Bh2
- 2.Sd5#
- 1...Bg3
- 2.Sd5#
- 1...Bg5
- 2.Sd5#
- 1...Bd6
- 2.Sd5#
- 1...Bc7
- 2.Sd5#
- 1...Bb8
- 2.Sd5#
- 1...Rb1
- Tries
- 1.Rxf4?
- threat
- 2.Sd5#
- 2.Rhxf3#
- 2.Rfxf3#
- 1...Rd7
- 2.Rhxf3#
- 2.Rfxf3#
- 1...Kxf4!
- threat
- 1.Qh5?
- threat
- 2.Rxf3#
- 2.Qxf3#
- 2.Qxc5#
- 1...Rb5
- 2.Sg4#
- 2.Rxf3#
- 2.Qxf3#
- 1...Rc7
- 2.Sg4#
- 2.Rxf3#
- 2.Qxf3#
- 1...Rd7
- 2.Sg4#
- 2.Rxf3#
- 2.Qxf3#
- 1...Bg3
- 2.Sd5#
- 1...Be5
- 2.Rxf3#
- 2.Qxf3#
- 1...Bg5
- 2.Sd5#
- 2.Rxf3#
- 2.Qxf3#
- 1...Bd6
- 2.Sd5#
- 2.Rxf3#
- 2.Qxf3#
- 1...Rb8+!
- threat
- 1.Qd7?
- threat
- 2.Qd2#
- 1...Rxd7
- 2.Sg4#
- 1...Bg3
- 2.Sd5#
- 1...Bd6
- 2.Sd5#
- 1...Rb8+!
- threat
- 1.Qc8?
- threat
- 2.Qxc5#
- 1...Rb5
- 2.Sg4#
- 1...Rc7
- 2.Sg4#
- 1...Rd7
- 2.Sg4#
- 1...Rb8
- 2.Sg4#
- 1...Bg3
- 2.Sd5#
- 1...Bd6
- 2.Sd5#
- 1...Bc7
- 2.Sd5#
- 1...Be5!
- threat
- 1.Qf8?
- threat
- 2.Qxc5#
- 1...Rb5
- 2.Sg4#
- 1...Rc7
- 2.Sg4#
- 1...Rd7
- 2.Sg4#
- 1...Re7
- 2.Sg4#
- 1...Rb8
- 2.Sg4#
- 1...Bg3
- 2.Sd5#
- 1...Bd6
- 2.Sd5#
- 1...Be5!
- threat
- 1.Qg8?
- threat
- 2.Qg1#
- 1...Rb8
- 2.Sg4#
- 1...Bh2
- 2.Sd5#
- 1...Bg3
- 2.Sd5#
- 1...Bg5
- 2.Sd5#
- 1...Rg7!
- threat
- 1.e5?
- 1...Bxe5
- 2.Re4#
- 1...Rb1
- 2.Sg4#
- 2.Rxf3#
- 1...Rb2
- 2.Sg4#
- 2.Rxf3#
- 1...Rb3
- 2.Sg4#
- 2.Rxf3#
- 1...Rb4
- 2.Sg4#
- 2.Rxf3#
- 1...Rb5
- 2.Sg4#
- 2.Rxf3#
- 1...Rb6
- 2.Sg4#
- 2.Rxf3#
- 1...Ra7
- 2.Sg4#
- 2.Rxf3#
- 1...Rc7
- 2.Sg4#
- 2.Rxf3#
- 1...Rd7
- 2.Sg4#
- 2.Rxf3#
- 1...Re7
- 2.Sg4#
- 2.Rxf3#
- 1...Rf7
- 2.Sg4#
- 2.Rxf3#
- 1...Rg7
- 2.Rxf3#
- 1...Rb8
- 2.Sg4#
- 2.Rxf3#
- 1...Bh2
- 2.Sd5#
- 2.Re4#
- 1...Bg3
- 2.Sd5#
- 2.Re4#
- 1...Bg5
- 2.Sd5#
- 2.Re4#
- 1...h5!
- 1...Bxe5
- 1.Rxf4?
- Keys
- 1.Qd8!
- threat
- 2.Qd2#
- 1...Rd7
- 2.Sg4#
- 1...Rb8
- 2.Sg4#
- 1...Bg3
- 2.Sd5#
- 1...Bd6
- 2.Sd5#
- threat
- 1.Qd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 14
- Sets
- R(h);::S(H)
- R(h);P_PINQ(J)::S(H)
- B(e);::S(H)
- B(e);N_SPINS(c)::S(H)
- Tries
- Try
- R(F);XB(e)
- Threat
- DUALS(3)
- Refutation
- K(b);N_SPINS(c),S_FLIGHT,XR(F)
- Try
- Q(J);
- Threat
- DUALS(3)
- Vars
- B(e);N_SPINS(c)::S(H)
- Refutation
- R(h);CHECK
- Try
- Q(J);
- Threat
- QAB1(J)
- Vars
- R(h);XQ(J)::S(H)
- B(e);N_SPINS(c)::S(H)
- B(e);::S(H)
- Refutation
- R(h);CHECK
- Try
- Q(J);
- Threat
- QAB(J),XP(f)
- Vars
- R(h);::S(H)
- R(h);P_PINQ(J)::S(H)
- B(e);N_SPINS(c)::S(H)
- B(e);::S(H)
- Refutation
- B(e);P_PINS(H)
- Try
- Q(J);
- Threat
- QAB(J),XP(f)
- Vars
- R(h);::S(H)
- R(h);P_PINQ(J)::S(H)
- B(e);N_SPINS(c)::S(H)
- B(e);::S(H)
- Refutation
- B(e);P_PINS(H)
- Try
- Q(J);
- Threat
- QAB(J)
- Vars
- R(h);P_PINQ(J)::S(H)
- B(e);::S(H)
- B(e);N_SPINS(c)::S(H)
- Refutation
- R(h);
- Try
- P(E);
- Vars
- B(e);OGATE,P_PINS(H),XP(E)::R1(F)
- R(h);::R1(D),XS(c)
- Refutation
- P(g);
- Try
- Actual
- Q(J);
- Threat
- QAB1(J)
- Vars
- R(h);::S(H)
- R(h);P_PINQ(J)::S(H)
- B(e);N_SPINS(c)::S(H)
- B(e);::S(H)
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).