MESON Chess Problem Database
Problem Display
PID: 253008 (1r2kbK1/2Q2p2/4rp2/5N2/3B4/3n4/B3b3/3RR3 w - - 0 1)
Schmoll, Werner
idee & form, 2018
#2
7 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Re3
- 2.Bxf7#
- 1...Re4
- 2.Bxf7#
- 1...Re5
- 2.Bxf7#
- 1...Ra6
- 2.Bxf7#
- 1...Reb6
- 2.Bxf7#
- 1...Rc6
- 2.Bxf7#
- 1...Rd6
- 2.Bxf7#
- 1...Re7
- 2.Sd6#
- 1...Rb1
- 2.Qc8#
- 1...Rb2
- 2.Qc8#
- 1...Rb3
- 2.Qc8#
- 1...Rb4
- 2.Qc8#
- 1...Rb5
- 2.Qc8#
- 1...Rbb6
- 2.Qc8#
- 1...Rb7
- 2.Qc8#
- 1...Rc8
- 2.Qxc8#
- 1...Rd8
- 2.Qxf7#
- 1...Ba3
- 2.Sg7#
- 1...Bb4
- 2.Sg7#
- 1...Bc5
- 2.Sg7#
- 1...Bd6
- 2.Sg7#
- 1...Be7
- 2.Sg7#
- 1...Bg7
- 2.Sxg7#
- 1...Re3
- Tries
- 1.Sd6+?
- 1...Rxd6
- 2.Bxf7#
- 1...Bxd6!
- 1...Rxd6
- 1.Bxe6?
- threat
- 2.Bd7#
- 2.Bxf7#
- 2.Qxb8#
- 2.Qd7#
- 1...Rb1
- 2.Bd7#
- 2.Bxf7#
- 2.Qd7#
- 2.Qc8#
- 1...Rb2
- 2.Bd7#
- 2.Bxf7#
- 2.Qd7#
- 2.Qc8#
- 1...Rb3
- 2.Bd7#
- 2.Bxf7#
- 2.Qd7#
- 2.Qc8#
- 1...Rb4
- 2.Bd7#
- 2.Bxf7#
- 2.Qd7#
- 2.Qc8#
- 1...Rb5
- 2.Bd7#
- 2.Bxf7#
- 2.Qd7#
- 2.Qc8#
- 1...Rb6
- 2.Bd7#
- 2.Bxf7#
- 2.Qd7#
- 2.Qc8#
- 1...Rb7
- 2.Bd7#
- 2.Bxf7#
- 2.Qc8#
- 1...Ra8
- 2.Bd7#
- 2.Bxf7#
- 2.Qd7#
- 1...Rc8
- 2.Bd7#
- 2.Bxf7#
- 2.Qd7#
- 2.Qxc8#
- 1...Rd8
- 2.Bxf7#
- 2.Qxf7#
- 1...Bd6
- 2.Sxd6#
- 2.Sg7#
- 2.Bd7#
- 2.Bxf7#
- 2.Qd7#
- 1...Be7
- 2.Sg7#
- 2.Bd7#
- 2.Bxf7#
- 2.Qd7#
- 2.Qxe7#
- 1...Sc5
- 2.Bxf7#
- 2.Qxb8#
- 1...Se5
- 2.Qxb8#
- 1...fxe6!
- threat
- 1.Bxf6?
- threat
- 2.Qxf7#
- 1...Re7
- 2.Sd6#
- 1...Rb7
- 2.Qd8#
- 2.Qc8#
- 1...Bh5
- 2.Qc6#
- 1...Be7
- 2.Sg7#
- 1...Se5
- 2.Qxb8#
- 1...Rxf6!
- threat
- 1.Sd6+?
- Keys
- 1.Bb6!
- threat
- 2.Qxf7#
- 1...Rexb6
- 2.Bxf7#
- 1...Rbxb6
- 2.Qc8#
- 1...Re7
- 2.Sd6#
- 1...Rb7
- 2.Qd8#
- 2.Qc8#
- 1...Bh5
- 2.Qc6#
- 1...Be7
- 2.Sg7#
- 1...Se5
- 2.Qxb8#
- threat
- 1.Bb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 19
- Sets
- R(c);OGATE::B(C),XP(e)
- R(c);OGATE,P_SPINB(a)::B(C),XP(e)
- R(c);N_GUARD,S_CUTB(h)::S(E)
- R(f);N_GUARD::QAR2(F)
- R(f);N_GUARD::QAR2(F),XR(f)
- R(f);SBLOCK::QAB1(F),XP(e)
- B(h);N_GUARD::S(E)
- B(h);N_GUARD::S(E),XB(h)
- Tries
- Try
- S(E);CHECK
- Vars
- R(c);OGATE,P_SPINB(a),XS(E)::B(C),XP(e)
- Refutation
- B(h);XS(E)
- Try
- B(C);XR(c)
- Threat
- DUALS(4)
- Vars
- S(b);::QAR(F),XR(f)
- Refutation
- P(e);XB(C)
- Try
- B(D);XP(d)
- Threat
- QAB1(F),XP(e)
- Vars
- R(c);N_GUARD,S_CUTB(h)::S(E)
- B(a);P_SPINR(c)::QAB(F)
- B(h);N_GUARD::S(E)
- S(b);::QAR(F),XR(f)
- Refutation
- R(c);P_SPINB(a),XB(D)
- Try
- Actual
- B(D);
- Threat
- QAB1(F),XP(e)
- Vars
- R(c);OGATE,P_SPINB(a),XB(D)::B(C),XP(e)
- R(f);N_GUARD,XB(D)::QAR2(F)
- R(c);N_GUARD,S_CUTB(h)::S(E)
- B(a);P_SPINR(c)::QAB(F)
- B(h);N_GUARD::S(E)
- S(b);::QAR(F),XR(f)
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).