MESON Chess Problem Database
Problem Display
PID: 261075 (7r/qp3pB1/2p2K2/1bQp1B1p/2np1k2/5N1R/4Rp2/3N1r1n w - - 0 1)
Felber, Stefan
Neue Zurcher Zeitung, 2013
#2
8 + 14
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qb8
- 2.Qxd4#
- 1...Qa2
- 2.Qxd4#
- 1...Qa3
- 2.Qxd4#
- 1...Qa4
- 2.Qxd4#
- 1...Qa5
- 2.Qxd4#
- 1...Qa6
- 2.Qxd4#
- 1...Qa8
- 2.Qxd4#
- 1...Rh6+
- 2.Bxh6#
- 1...Ra8
- 2.Bh6#
- 1...Rb8
- 2.Bh6#
- 1...Rc8
- 2.Bh6#
- 1...Rd8
- 2.Bh6#
- 1...Re8
- 2.Bh6#
- 1...Rf8
- 2.Bh6#
- 1...Sb2
- 2.Qd6#
- 2.Qc1#
- 1...Sd2
- 2.Qd6#
- 1...Sa3
- 2.Qd6#
- 2.Qc1#
- 1...Se3
- 2.Qd6#
- 1...Sa5
- 2.Qd6#
- 2.Qc1#
- 1...Se5
- 2.Qc1#
- 1...Sb6
- 2.Qxd4#
- 2.Qd6#
- 2.Qc1#
- 1...Sd6
- 2.Qxd6#
- 2.Qc1#
- 1...b6
- 2.Qxd4#
- 1...Qb8
- Tries
- 1.Sd2?
- threat
- 2.Rf3#
- 1...Rh6+
- 2.Bxh6#
- 1...Sxd2
- 2.Qd6#
- 1...Qa3
- 2.Qxd4#
- 1...Sg3
- 2.Rh4#
- 1...Se5!
- threat
- 1.Sxd4?
- threat
- 2.Rf3#
- 1...Rh6+
- 2.Bxh6#
- 1...Sg3
- 2.Rh4#
- 1...Sd2
- 2.Qd6#
- 1...Se5
- 2.Qc1#
- 1...Qa3!
- threat
- 1.Sh4?
- threat
- 2.Sg2#
- 2.Rf3#
- 1...Rh6+
- 2.Bxh6#
- 1...Qa3
- 2.Sg2#
- 2.Qxd4#
- 1...Rg1
- 2.Rf3#
- 1...Sd2
- 2.Sg2#
- 2.Qd6#
- 1...Se3
- 2.Rf3#
- 2.Qd6#
- 1...Se5
- 2.Sg2#
- 2.Qc1#
- 1...Sg3!
- threat
- 1.Se5?
- threat
- 2.Sd3#
- 2.Rf3#
- 1...Rh6+
- 2.Bxh6#
- 1...Rxd1
- 2.Rf3#
- 1...Sxe5
- 2.Qc1#
- 1...Qa3
- 2.Qxd4#
- 1...Sg3
- 2.Rh4#
- 1...Sb2
- 2.Rf3#
- 2.Qc1#
- 1...Sa3
- 2.Rf3#
- 2.Qc1#
- 1...Se3
- 2.Rf3#
- 1...Sa5
- 2.Rf3#
- 2.Qc1#
- 1...Sb6
- 2.Rf3#
- 2.Qxd4#
- 2.Qc1#
- 1...Sd6
- 2.Rf3#
- 2.Qc1#
- 1...d3
- 2.Sxd3#
- 2.Rf3#
- 1...Sd2!
- threat
- 1.Sg5?
- threat
- 2.Rf3#
- 1...Qa3
- 2.Qxd4#
- 1...Sg3
- 2.Rh4#
- 1...Sd2
- 2.Qd6#
- 1...Se5
- 2.Qc1#
- 1...Rh6+!
- threat
- 1.Qd6+?
- 1...Se5
- 2.Qxe5#
- 1...Sxd6!
- 1...Se5
- 1.Qxd5?
- threat
- 2.Re4#
- 2.Qe4#
- 1...Rh6+
- 2.Bxh6#
- 1...Re1
- 2.Qe4#
- 1...Re8
- 2.Bh6#
- 1...Sg3
- 2.Rh4#
- 1...Sd2
- 2.Qe5#
- 2.Qd6#
- 1...Se3
- 2.Qe4#
- 2.Qe5#
- 2.Qd6#
- 1...Sd6
- 2.Qe5#
- 2.Qxd6#
- 1...cxd5!
- threat
- 1.Sd2?
- Keys
- 1.Sh2!
- threat
- 2.Rf3#
- 1...Rh6+
- 2.Bxh6#
- 1...Qa3
- 2.Qxd4#
- 1...Sg3
- 2.Rh4#
- 1...Sd2
- 2.Qd6#
- 1...Se5
- 2.Qc1#
- threat
- 1.Sh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 14
- Sets
- Q(k);N_GUARD::QAR2(E),XP(e)
- R(n);CHECK,N_GUARD::B(H),XR(n)
- R(n);N_GUARD::B(H)
- S(d);N_GUARD::QAB(E)
- S(d);OGATE::QAB(E)
- P(l);S_CUTQ(k)::QAR2(E),XP(e)
- Tries
- Try
- S(C);
- Threat
- R1(D)
- Vars
- R(n);CHECK,N_GUARD::B(H),XR(n)
- S(d);N_GUARD,XS(C)::QAB(E)
- Q(k);N_GUARD::QAR2(E),XP(e)
- S(b);SBLOCK::R(D)
- Refutation
- S(d);
- Try
- S(C);XP(e)
- Threat
- R1(D)
- Vars
- R(n);CHECK,N_GUARD::B(H),XR(n)
- S(b);SBLOCK::R(D)
- S(d);N_GUARD::QAB(E)
- S(d);OGATE::QAB(E)
- Refutation
- Q(k);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(n);CHECK,N_GUARD::B(H),XR(n)
- R(a);::R1(D)
- Refutation
- S(b);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(n);CHECK,N_GUARD::B(H),XR(n)
- R(a);XS(A)::R1(D)
- S(d);OGATE,XS(C)::QAB(E)
- Q(k);N_GUARD::QAR2(E),XP(e)
- S(b);SBLOCK::R(D)
- S(d);::R1(D)
- Refutation
- S(d);
- Try
- S(C);
- Threat
- R1(D)
- Vars
- Q(k);N_GUARD::QAR2(E),XP(e)
- S(b);SBLOCK::R(D)
- S(d);N_GUARD::QAB(E)
- S(d);OGATE::QAB(E)
- Refutation
- R(n);CHECK
- Try
- Q(E);CHECK
- Vars
- S(d);N_GUARD,P_SPINS(d)::QAB1(E),XS(d)
- Refutation
- S(d);XQ(E)
- Try
- Q(E);XP(h)
- Threat
- DUALS(2)
- Vars
- R(n);CHECK,N_GUARD::B(H),XR(n)
- R(a);::QAR1(E)
- R(n);N_GUARD::B(H)
- S(b);SBLOCK::R(D)
- Refutation
- P(j);XQ(E)
- Try
- Actual
- S(C);
- Threat
- R1(D)
- Vars
- R(n);CHECK,N_GUARD::B(H),XR(n)
- Q(k);N_GUARD::QAR2(E),XP(e)
- S(b);SBLOCK::R(D)
- S(d);N_GUARD::QAB(E)
- S(d);OGATE::QAB(E)
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).