MESON Chess Problem Database
Problem Display
PID: 70393 (3R3B/2p1p3/q2b1N1K/nB2P1Rp/N1pk3r/2p2Pp1/b1P1Q3/8 w - - 0 1)
Woodward, LA
Chess, 1950
#2
11 + 12
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Qe4#
- 1...Rh2
- 2.Qe4#
- 1...Rh3
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...g2
- 2.Qf2#
- 1...Rh1
- Tries
- 1.Sg4?
- threat
- 2.Qd1#
- 2.Qe4#
- 2.e6#
- 1...Kd5
- 2.e6#
- 1...Qxb5
- 2.Qd1#
- 2.Qe4#
- 1...Rxg4
- 2.e6#
- 1...Qb7
- 2.Qd1#
- 2.e6#
- 1...Qc6
- 2.Qd1#
- 2.e6#
- 1...Qa8
- 2.Qd1#
- 2.e6#
- 1...Rh1
- 2.Qe4#
- 2.e6#
- 1...Rh2
- 2.Qe4#
- 2.e6#
- 1...Sb3
- 2.Qxc4#
- 2.Qe4#
- 2.e6#
- 1...Sc6
- 2.Qd1#
- 2.Qe4#
- 1...e6
- 2.Qd1#
- 2.Qe4#
- 1...hxg4+!
- threat
- 1.Qe1?
- threat
- 2.Qxc3#
- 2.Qg1#
- 1...Rh1
- 2.Qxc3#
- 2.Qe4#
- 1...Rh2
- 2.Qxc3#
- 2.Qe4#
- 1...Re4
- 2.Qxc3#
- 2.Qxe4#
- 1...exf6!
- threat
- 1.exd6?
- threat
- 2.Rd5#
- 2.Qe5#
- 1...Qxd6
- 2.Qe5#
- 1...exf6
- 2.Bxf6#
- 1...Qb7
- 2.Qe5#
- 1...Qc6
- 2.Qe5#
- 1...Qa8
- 2.Qe5#
- 1...Re4
- 2.Rd5#
- 2.Qxe4#
- 1...Sc6
- 2.Rd5#
- 1...c6
- 2.Qe5#
- 2.dxe7#
- 1...e5
- 2.Qxe5#
- 1...e6
- 2.Qe5#
- 1...Qxb5!
- threat
- 1.e6?
- threat
- 2.Se4#
- 2.Sg4#
- 2.Sxh5#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Rd5#
- 2.Qe5#
- 1...exf6
- 2.Bxf6#
- 1...Rf4
- 2.Rd5#
- 2.Qe5#
- 1...Qb7
- 2.Se4#
- 2.Sg4#
- 2.Sxh5#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Qe5#
- 1...Qc6
- 2.Se4#
- 2.Sg4#
- 2.Sxh5#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Qe5#
- 1...Qa8
- 2.Se4#
- 2.Sg4#
- 2.Sxh5#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Qe5#
- 1...Re4
- 2.Sxe4#
- 2.Rd5#
- 2.Qxe4#
- 1...Rg4
- 2.Se4#
- 2.Sxg4#
- 2.Sxh5#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Rd5#
- 2.Qe5#
- 1...Sc6
- 2.Rd5#
- 1...c6
- 2.Se4#
- 2.Sg4#
- 2.Sxh5#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Qe5#
- 1...Qxb5!
- threat
- 1.Sg4?
- Keys
- 1.Sd5!
- threat
- 2.Qd1#
- 1...Ba3+
- 2.e6#
- 1...Bb4+
- 2.e6#
- 1...Bc5+
- 2.e6#
- 1...Bxe5+
- 2.Sdb6#
- 1...Kxd5
- 2.e6#
- 1...Rh1
- 2.Qe4#
- 1...Rh2
- 2.Qe4#
- 1...Sb3
- 2.Qxc4#
- threat
- 1.Sd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 3
- Sets
- R(f);N_GUARD::QAR1(B)
- R(f);N_GUARD::QAR1(B),XR(f)
- P(c);N_GUARD::QAB(B)
- Tries
- Try
- S(H);
- Threat
- DUALS(3)
- Vars
- K(e);P-FLIGHT::R(G)+P(F)
- R(f);XS(H)::B(K)+P(F)
- Refutation
- P(h);CHECK,XS(H)
- Try
- Q(B);
- Threat
- DUALS(2)
- Refutation
- P(l);XS(H)
- Try
- P(F);XB(j)
- Threat
- DUALS(2)
- Vars
- Q(i);P_PINS(H),P_SPINQ(i),XP(F)::QAB1(B)
- P(l);OGATE,P_SPINP(l),XS(H)::B(K),XP(l)
- Q(i);::QAB1(B)
- S(g);::R1(G)
- P(l);::QAB1(B),XP(l)
- P(l);::QAB1(B)
- Refutation
- Q(i);XB(E)
- Try
- P(F);
- Threat
- DUALS(8)
- Vars
- P(l);OGATE,P_SPINP(l),XS(H)::B(K),XP(l)
- S(g);::R1(G)
- Refutation
- Q(i);XB(E)
- Try
- Actual
- S(H);N_PINB(j)
- Threat
- QAR(B)
- Vars
- B(j);CHECK,N_GUARD::B(K)+P(F)
- B(j);CHECK,P_SPINB(j),XP(F)::R(J)+S(H)
- K(e);P-FLIGHT,P_SPINB(j),XS(H)::R(G)+P(F)
- R(f);N_GUARD::QAR1(B)
- S(g);N_GUARD,S_CUTB(a)::QAR1(B),XP(d)
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).