MESON Chess Problem Database
Problem Display
PID: 261417 (b6B/R2p4/4P2p/5k2/2Q1r1Rp/2n1pN1P/1rn1N1K1/1B2b3 w - - 0 1)
Savournin, Jacques
Neue Zurcher Zeitung, 2000
#2
10 + 11
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Sxd4#
- 1...Rxg4+
- 2.Qxg4#
- 1...Re5
- 2.Sd4#
- 1...Rxe6
- 2.Sd4#
- 2.Qf4#
- 1...Bd2
- 2.Sxh4#
- 1...Sa1
- 2.Sd4#
- 1...Sa3
- 2.Sd4#
- 1...Sb4
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sd5
- 2.Qxe4#
- 1...h5
- 2.Rg5#
- 1...dxe6
- 2.Rf7#
- 1...d6
- 2.Rf7#
- 1...Rd4
- Tries
- 1.Sg3+?
- 1...hxg3
- 2.Sh4#
- 1...Bxg3!
- 1...hxg3
- 1.Sg3+?
- Keys
- 1.Qd4!
- threat
- 2.Qf6#
- 1...Rxg4+
- 2.Qxg4#
- 1...Kxe6
- 2.Qxd7#
- 1...Rxd4
- 2.Sxd4#
- 1...Rxe6
- 2.Qf4#
- 1...Sxd4
- 2.Sxd4#
- 1...Rf4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Sd5
- 2.Qxe4#
- threat
- 1.Qd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- R(f);N_GUARD,P_PINS(D),P_SPINS(c)::S(B),XR(f)
- R(f);CHECK,OGATE,P_PINS(D),P_SPINS(c),XR(G)::QAB1(F),XR(f)
- R(f);N_GUARD,P_PINS(D),P_SPINS(c)::S(B)
- B(a);N_GUARD::S(D),XP(g)
- S(c);N_GUARD,P_PINS(B),P_SPINR(f)::S(D)
- S(c);N_GUARD,P_PINS(B),P_SPINR(f)::S(D),XS(c)
- S(d);N_GUARD,S_CUTB(k)::QAB1(F),XR(f)
- P(i);N_GUARD::R1(G)
- P(j);OGATE,XP(H)::R(I)
- P(j);OGATE::R(I)
- Tries
- Try
- S(B);CHECK
- Vars
- P(g);XS(B)::S(D)
- Refutation
- B(a);XS(B)
- Try
- Actual
- Q(F);
- Threat
- QAR1(F)
- Vars
- R(f);CHECK,OGATE,P_PINS(D),P_SPINS(c),XR(G)::QAB1(F),XR(f)
- K(h);OGATEB,S_FLIGHT,XP(H)::QAB1(F),XP(j)
- R(f);P_PINS(D),P_SPINS(c),XQ(F)::S(B),XR(f)
- R(f);OGATE,P_PINS(D),P_SPINS(c),SBLOCK,XP(H)::QAR1(F)
- S(c);P_PINS(B),P_SPINR(f),XQ(F)::S(D),XS(c)
- R(f);N_GUARD,P_PINS(D),P_SPINS(c)::QAR1(F)
- R(f);N_GUARD,P_PINS(D),P_SPINS(c)::QAR1(F),XR(f)
- S(d);N_GUARD,S_CUTB(k)::QAB1(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).