MESON Chess Problem Database
Problem Display
PID: 261419 (RbQ5/np1p2P1/1pb5/1P6/1B5R/1N1PP3/k4P2/2KB4 w - - 0 1)
Mettler, Josef
Neue Zurcher Zeitung, 2001
#2
12 + 7
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Bh1
- 2.Qc2#
- 1...Bg2
- 2.Qc2#
- 1...Bf3
- 2.Qc2#
- 1...Be4
- 2.Qc2#
- 1...Bxb5
- 2.Qc2#
- 1...Bd5
- 2.Qc2#
- 1...Bh2
- 2.Rxa7#
- 1...Bg3
- 2.Rxa7#
- 1...Bf4
- 2.Rxa7#
- 1...Be5
- 2.Rxa7#
- 1...Bd6
- 2.Rxa7#
- 1...Bc7
- 2.Rxa7#
- 1...Bh1
- Tries
- 1.Bd6?
- threat
- 2.Ra4#
- 1...Bxb5
- 2.Qc2#
- 1...Be4
- 2.Qc2#
- 1...Bxd6!
- threat
- 1.Be7?
- threat
- 2.Ra4#
- 1...Bxb5
- 2.Qc2#
- 1...Be4
- 2.Qc2#
- 1...Bf4
- 2.Rxa7#
- 1...Bd6!
- threat
- 1.Bf8?
- threat
- 2.Ra4#
- 1...Bxb5
- 2.Qc2#
- 1...Be4
- 2.Qc2#
- 1...Bf4
- 2.Rxa7#
- 1...Bd6!
- threat
- 1.f3?
- 1...Bxf3
- 2.Qc2#
- 1...Bxb5
- 2.Qc2#
- 1...Be4
- 2.Qc2#
- 1...Bd5
- 2.Qc2#
- 1...Bh2
- 2.Rxh2#
- 2.Rxa7#
- 1...Bg3
- 2.Rxa7#
- 1...Bf4
- 2.Rxa7#
- 1...Be5
- 2.Rxa7#
- 1...Bd6
- 2.Rxa7#
- 1...Bc7
- 2.Rxa7#
- 1...d6
- 2.Rh2#
- 1...d5!
- 1...Bxf3
- 1.f4?
- 1...Bxb5
- 2.Rh2#
- 2.Qc2#
- 1...Bxf4
- 2.Rxa7#
- 1...d5
- 2.Rh2#
- 1...Bh1
- 2.Qc2#
- 1...Bg2
- 2.Qc2#
- 1...Bf3
- 2.Qc2#
- 1...Be4
- 2.Qc2#
- 1...Bd5
- 2.Qc2#
- 1...Be5
- 2.Rxa7#
- 1...Bd6
- 2.Rxa7#
- 1...Bc7
- 2.Rxa7#
- 1...d6!
- 1...Bxb5
- 1.Bd6?
- Keys
- 1.Rh2!
- 1...Bxb5
- 2.Qc2#
- 2.f4#
- 1...Bxh2
- 2.Rxa7#
- 1...Bh1
- 2.Qc2#
- 1...Bg2
- 2.Qc2#
- 1...Bf3
- 2.Qc2#
- 1...Be4
- 2.Qc2#
- 1...Bd5
- 2.Qc2#
- 1...Bg3
- 2.Rxa7#
- 1...Bf4
- 2.Rxa7#
- 1...Be5
- 2.Rxa7#
- 1...Bd6
- 2.Rxa7#
- 1...Bc7
- 2.Rxa7#
- 1...d5
- 2.f4#
- 1...d6
- 2.f3#
- 1...Bxb5
- 1.Rh2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- B(c);OGATE::QAR2(L)
- B(c);OGATE,XP(I)::QAR2(L)
- B(g);N_GUARD::R(K),XS(d)
- B(g);N_GUARD,P_PINP(F)::R(K),XS(d)
- Tries
- Try
- B(G);
- Threat
- R(H)
- Vars
- B(c);OGATE,XP(I)::QAR2(L)
- B(c);OGATE::QAR2(L)
- Refutation
- B(g);XB(G)
- Try
- B(G);
- Threat
- R(H)
- Vars
- B(c);OGATE,XP(I)::QAR2(L)
- B(c);OGATE::QAR2(L)
- B(g);N_GUARD,P_PINP(F)::R(K),XS(d)
- Refutation
- B(g);
- Try
- B(G);
- Threat
- R(H)
- Vars
- B(c);OGATE,XP(I)::QAR2(L)
- B(c);OGATE::QAR2(L)
- B(g);N_GUARD,P_PINP(F)::R(K),XS(d)
- Refutation
- B(g);
- Try
- P(C);
- Vars
- B(c);OGATE,XP(C)::QAR2(L)
- B(c);OGATE,XP(I)::QAR2(L)
- B(c);OGATE::QAR2(L)
- B(g);N_GUARD::R(K),XS(d)
- B(g);N_GUARD,P_PINP(F)::R(K),XS(d)
- P(f);S_CUTB(g)::R(H)
- Refutation
- P(f);
- Try
- P(C);
- Vars
- B(g);N_GUARD,P_PINP(F),XP(C)::R(K),XS(d)
- P(f);S_CUTB(c)::R(H)
- B(c);OGATE::QAR2(L)
- B(g);N_GUARD::R(K),XS(d)
- Refutation
- P(f);
- Try
- Actual
- R(H);
- Vars
- B(g);N_GUARD,SBLOCK,XR(H)::R(K),XS(d)
- B(c);OGATE::QAR2(L)
- B(g);N_GUARD::R(K),XS(d)
- B(g);N_GUARD,P_PINP(F)::R(K),XS(d)
- P(f);S_CUTB(c)::R(H)+P(C)
- P(f);S_CUTB(g)::R(H)+P(C)
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).