MESON Chess Problem Database
Problem Display
PID: 158786 (N3K2B/Pp1B4/Qp1k1N1R/P3pp2/1P5p/2p1r1p1/3b4/3Rrb1q w - - 0 1)
Nerong, Otto
Magyar Sakkvilag, 1932
#2
11 + 13
SOLUTION
- SOUND
- Sets
- 1...Qd5
- 2.Se4#
- 1...Qg1
- 2.Qxb6#
- 1...Qh2
- 2.Qxb6#
- 1...Qh3
- 2.Qxb6#
- 1...Rf3
- 2.Qxb6#
- 1...Re4
- 2.Qxb6#
- 1...g2
- 2.Qxb6#
- 1...Qd5
- Tries
- 1.Qc4?
- threat
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qe6#
- 2.Qc7#
- 1...e4
- 2.Sxe4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qd5#
- 2.Qe6#
- 2.Qd4#
- 2.Qc7#
- 1...Rd3
- 2.Se4#
- 2.Qe6#
- 2.Qc7#
- 1...Qe4
- 2.Sxe4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qe6#
- 2.Qc7#
- 1...Qd5
- 2.Se4#
- 2.Sxd5#
- 2.Qxd5#
- 2.Qc7#
- 1...Qc6
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qe6#
- 1...R3e2
- 2.Se4#
- 2.Sg4#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qe6#
- 2.Qc7#
- 1...Rf3
- 2.Se4#
- 2.Sg4#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qd5#
- 2.Qe6#
- 2.Qc7#
- 1...Re4
- 2.Sxe4#
- 2.Sg4#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qd5#
- 2.Qe6#
- 2.Qc7#
- 1...Bxc4!
- threat
- 1.Qb5?
- threat
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 1...Rd3
- 2.Se4#
- 1...Qe4
- 2.Sxe4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 1...Qd5
- 2.Se4#
- 2.Sxd5#
- 2.Qxd5#
- 1...R3e2
- 2.Se4#
- 2.Sg4#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 1...Rf3
- 2.Se4#
- 2.Sg4#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qd5#
- 2.Qxb6#
- 1...Re4
- 2.Sxe4#
- 2.Sg4#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qd5#
- 2.Qxb6#
- 1...Bc4
- 2.Se4#
- 2.Sd5#
- 1...e4
- 2.Sxe4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qd5#
- 1...Bxb5!
- threat
- 1.Qxb7?
- threat
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qc7#
- 2.Qb8#
- 1...e4
- 2.Sxe4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qd5#
- 2.Qc7#
- 2.Qb8#
- 1...Rd3
- 2.Se4#
- 2.Qc7#
- 2.Qb8#
- 1...Qe4
- 2.Sxe4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qc7#
- 2.Qb8#
- 1...Qd5
- 2.Se4#
- 2.Sxd5#
- 2.Qxd5#
- 2.Qc7#
- 2.Qb8#
- 1...Qc6
- 2.Qxc6#
- 1...R3e2
- 2.Se4#
- 2.Sg4#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qc7#
- 2.Qb8#
- 1...Rf3
- 2.Se4#
- 2.Sg4#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qd5#
- 2.Qc6#
- 2.Qxb6#
- 2.Qc7#
- 2.Qb8#
- 1...Re4
- 2.Sxe4#
- 2.Sg4#
- 2.Sh5#
- 2.Sh7#
- 2.Sg8#
- 2.Qd5#
- 2.Qc6#
- 2.Qxb6#
- 2.Qc7#
- 2.Qb8#
- 1...Bc4
- 2.Se4#
- 2.Sd5#
- 2.Qc7#
- 2.Qb8#
- 1...Qxb7!
- threat
- 1.Qc4?
- Keys
- 1.Sc7!
- threat
- 2.Sfd5#
- 1...Kxc7
- 2.Qxb6#
- 1...Qd5
- 2.Sfxd5#
- 1...R3e2
- 2.Sb5#
- 1...Rd3
- 2.Sb5#
- 1...Rf3
- 2.Qxb6#
- 1...Re4
- 2.Qxb6#
- threat
- 1.Sc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- Q(c);N_SPINB(d),SBLOCK::R(F)+S(E),DCHECK
- Q(c);N_GUARD::QAR2(D),XP(k)
- R(f);S_CUTQ(c)::QAR2(D),XP(k)
- P(g);S_CUTQ(c)::QAR2(D),XP(k)
- Tries
- Try
- Q(D);N_PINP(k)
- Threat
- DUALS(8)
- Refutation
- B(b);XQ(D)
- Try
- Q(D);N_PINP(k)
- Threat
- DUALS(6)
- Vars
- R(f);N_SPINB(d)::R(F)+S(E),DCHECK
- Refutation
- B(b);P_PINB(H),XQ(D)
- Try
- Q(D);N_PINP(k),XP(m)
- Threat
- DUALS(8)
- Vars
- Q(c);N_GUARD,P_PINB(H)::QAR1(D),XQ(c)
- Refutation
- Q(c);XQ(D)
- Try
- Actual
- S(I);
- Threat
- R(F)+S(E)
- Vars
- K(l);N_SPINB(d),N_SPINP(k),S_FLIGHT,XS(I)::QAB1(D),XP(k)
- Q(c);N_SPINB(d)::R(F)+S(E),XQ(c)
- R(f);S_CUTB(b)::S(I)
- R(f);N_SPINB(d),S_CUTB(b)::S(I)
- R(f);S_CUTQ(c)::QAR2(D),XP(k)
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).