MESON Chess Problem Database
Problem Display
PID: 261464 (2bq4/2p5/n7/Q3p3/1pPkBbrN/1P6/2K2P2/4R1n1 w - - 0 1)
Kupper, Josef
Neue Zurcher Zeitung, 2005
#2
8 + 10
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qxh4
- 2.Qd5#
- 1...Qg5
- 2.Qd5#
- 1...Qf6
- 2.Qd5#
- 1...Qe7
- 2.Qd5#
- 1...Qd5
- 2.Qxd5#
- 1...Qe8
- 2.Qd5#
- 1...Qf8
- 2.Qd5#
- 1...Qh8
- 2.Qd5#
- 1...Bf5
- 2.Sxf5#
- 1...Bb7
- 2.Sf5#
- 1...Bd7
- 2.Qd5#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sc5
- 2.Qa1#
- 1...c5
- 2.Qa1#
- 1...Qxh4
- Tries
- 1.Bf3?
- threat
- 2.Re4#
- 1...Bf5+
- 2.Sxf5#
- 1...Sxf3
- 2.Sxf3#
- 1...Qd5
- 2.Qxd5#
- 1...Bc1
- 2.Qxe5#
- 1...Bd2
- 2.Qxe5#
- 1...Bh2
- 2.Rd1#
- 1...Be3
- 2.fxe3#
- 1...Bg3
- 2.Rd1#
- 1...Bg5
- 2.Qxe5#
- 1...Bh6
- 2.Qxe5#
- 1...Bb7
- 2.Sf5#
- 1...Sc5
- 2.Qa1#
- 1...e4
- 2.Rxe4#
- 1...Se2!
- threat
- 1.Bf5?
- threat
- 2.Re4#
- 1...Bxf5+
- 2.Sxf5#
- 1...Se2
- 2.Sf3#
- 1...Qd5
- 2.Qxd5#
- 1...Bc1
- 2.Qxe5#
- 1...Bd2
- 2.Qxe5#
- 1...Bh2
- 2.Rd1#
- 1...Be3
- 2.fxe3#
- 1...Bg3
- 2.Rd1#
- 1...Bg5
- 2.Qxe5#
- 1...Bh6
- 2.Qxe5#
- 1...Sc5
- 2.Qa1#
- 1...e4
- 2.Rxe4#
- 1...Bb7!
- threat
- 1.Bg6?
- threat
- 2.Re4#
- 1...Bf5+
- 2.Sxf5#
- 1...Se2
- 2.Sf3#
- 1...Qd5
- 2.Qxd5#
- 1...Bc1
- 2.Qxe5#
- 1...Bd2
- 2.Qxe5#
- 1...Bh2
- 2.Rd1#
- 1...Be3
- 2.fxe3#
- 1...Bg3
- 2.Rd1#
- 1...Bg5
- 2.Qxe5#
- 1...Bh6
- 2.Qxe5#
- 1...Bb7
- 2.Sf5#
- 1...Sc5
- 2.Qa1#
- 1...e4
- 2.Rxe4#
- 1...Rxg6!
- threat
- 1.Bb7?
- threat
- 2.Re4#
- 1...Bf5+
- 2.Sxf5#
- 1...Bxb7
- 2.Sf5#
- 1...Se2
- 2.Sf3#
- 1...Qd5
- 2.Qxd5#
- 1...Bc1
- 2.Qxe5#
- 1...Bd2
- 2.Qxe5#
- 1...Bh2
- 2.Rd1#
- 1...Be3
- 2.fxe3#
- 1...Bg3
- 2.Rd1#
- 1...Bg5
- 2.Qxe5#
- 1...Bh6
- 2.Qxe5#
- 1...Sc5
- 2.Qa1#
- 1...e4
- 2.Rxe4#
- 1...c6!
- threat
- 1.Bh7?
- threat
- 2.Re4#
- 1...Bf5+
- 2.Sxf5#
- 1...Se2
- 2.Sf3#
- 1...Qd5
- 2.Qxd5#
- 1...Bc1
- 2.Qxe5#
- 1...Bd2
- 2.Qxe5#
- 1...Bh2
- 2.Rd1#
- 1...Be3
- 2.fxe3#
- 1...Bg3
- 2.Rd1#
- 1...Bg5
- 2.Qxe5#
- 1...Bh6
- 2.Qxe5#
- 1...Bb7
- 2.Sf5#
- 1...Sc5
- 2.Qa1#
- 1...e4
- 2.Rxe4#
- 1...Rg6!
- threat
- 1.Ba8?
- threat
- 2.Re4#
- 1...Bf5+
- 2.Sxf5#
- 1...Se2
- 2.Sf3#
- 1...Qd5
- 2.Qxd5#
- 1...Bc1
- 2.Qxe5#
- 1...Bd2
- 2.Qxe5#
- 1...Bh2
- 2.Rd1#
- 1...Be3
- 2.fxe3#
- 1...Bg3
- 2.Rd1#
- 1...Bg5
- 2.Qxe5#
- 1...Bh6
- 2.Qxe5#
- 1...Bb7
- 2.Sf5#
- 1...Sc5
- 2.Qa1#
- 1...e4
- 2.Rxe4#
- 1...c6!
- threat
- 1.Bf3?
- Keys
- 1.Bc6!
- threat
- 2.Re4#
- 1...Bf5+
- 2.Sxf5#
- 1...Se2
- 2.Sf3#
- 1...Qd5
- 2.Qxd5#
- 1...Bc1
- 2.Qxe5#
- 1...Bd2
- 2.Qxe5#
- 1...Bh2
- 2.Rd1#
- 1...Be3
- 2.fxe3#
- 1...Bg3
- 2.Rd1#
- 1...Bg5
- 2.Qxe5#
- 1...Bh6
- 2.Qxe5#
- 1...Sc5
- 2.Qa1#
- 1...e4
- 2.Rxe4#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 12
- Sets
- Q(j);N_GUARD,XS(G)::QAR1(H)
- Q(j);N_GUARD::QAR1(H)
- Q(j);N_GUARD::QAR1(H),XQ(j)
- B(i);N_GUARD,P_PINB(F)::S(G),XB(i)
- B(i);N_GUARD::S(G)
- B(i);S_CUTQ(j)::QAR1(H)
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- S(g);SBLOCK::QAB(H)
- P(h);SBLOCK::QAB(H)
- Tries
- Try
- B(F);
- Threat
- R1(A)
- Vars
- B(i);CHECK,N_GUARD::S(G),XB(i)
- S(a);XB(F)::S(G),XS(a)
- Q(j);N_GUARD::QAR1(H),XQ(j)
- B(d);N_GUARD::QAB1(H),XP(f)
- B(d);N_GUARD::R(A)
- B(d);OGATE::P(C),XB(d)
- B(i);N_GUARD::S(G)
- S(g);SBLOCK::QAB(H)
- P(f);::R1(A),XP(f)
- Refutation
- S(a);
- Try
- B(F);
- Threat
- R1(A)
- Vars
- B(i);CHECK,XB(F)::S(G),XB(i)
- S(a);N_GUARD::S(G)
- Q(j);N_GUARD::QAR1(H),XQ(j)
- B(d);N_GUARD::QAB1(H),XP(f)
- B(d);N_GUARD::R(A)
- B(d);OGATE::P(C),XB(d)
- S(g);SBLOCK::QAB(H)
- P(f);::R1(A),XP(f)
- Refutation
- B(i);
- Try
- B(F);
- Threat
- R1(A)
- Vars
- B(i);CHECK,N_GUARD::S(G),XB(i)
- S(a);N_GUARD::S(G)
- Q(j);N_GUARD::QAR1(H),XQ(j)
- B(d);N_GUARD::QAB1(H),XP(f)
- B(d);N_GUARD::R(A)
- B(d);OGATE::P(C),XB(d)
- B(i);N_GUARD::S(G)
- S(g);SBLOCK::QAB(H)
- P(f);::R1(A),XP(f)
- Refutation
- R(e);XB(F)
- Try
- B(F);
- Threat
- R1(A)
- Vars
- B(i);CHECK,N_GUARD::S(G),XB(i)
- B(i);N_GUARD,XB(F)::S(G)
- S(a);N_GUARD::S(G)
- Q(j);N_GUARD::QAR1(H),XQ(j)
- B(d);N_GUARD::QAB1(H),XP(f)
- B(d);N_GUARD::R(A)
- B(d);OGATE::P(C),XB(d)
- S(g);SBLOCK::QAB(H)
- P(f);::R1(A),XP(f)
- Refutation
- P(h);
- Try
- B(F);
- Threat
- R1(A)
- Vars
- B(i);CHECK,N_GUARD::S(G),XB(i)
- S(a);N_GUARD::S(G)
- Q(j);N_GUARD::QAR1(H),XQ(j)
- B(d);N_GUARD::QAB1(H),XP(f)
- B(d);N_GUARD::R(A)
- B(d);OGATE::P(C),XB(d)
- B(i);N_GUARD::S(G)
- S(g);SBLOCK::QAB(H)
- P(f);::R1(A),XP(f)
- Refutation
- R(e);
- Try
- B(F);
- Threat
- R1(A)
- Vars
- B(i);CHECK,N_GUARD::S(G),XB(i)
- S(a);N_GUARD::S(G)
- Q(j);N_GUARD::QAR1(H),XQ(j)
- B(d);N_GUARD::QAB1(H),XP(f)
- B(d);N_GUARD::R(A)
- B(d);OGATE::P(C),XB(d)
- B(i);N_GUARD::S(G)
- S(g);SBLOCK::QAB(H)
- P(f);::R1(A),XP(f)
- Refutation
- P(h);
- Try
- Actual
- B(F);
- Threat
- R1(A)
- Vars
- B(i);CHECK,N_GUARD::S(G),XB(i)
- S(a);N_GUARD::S(G)
- Q(j);N_GUARD::QAR1(H),XQ(j)
- B(d);N_GUARD::QAB1(H),XP(f)
- B(d);N_GUARD::R(A)
- B(d);OGATE::P(C),XB(d)
- S(g);SBLOCK::QAB(H)
- P(f);::R1(A),XP(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).