MESON Chess Problem Database
Problem Display
PID: 206461 (8/2n2Q2/2B1r3/2p1P1p1/P1k2b2/2P5/2K5/8 w - - 0 1)
Franken, Maurits
Oprechte Haarlemsche Courant, 1925
#2
6 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Qf1#
- 1...Bd2
- 2.Qf1#
- 1...Bh2
- 2.Qf1#
- 1...Be3
- 2.Qf1#
- 1...Bg3
- 2.Qf1#
- 1...Bxe5
- 2.Qf1#
- 1...Sb5
- 2.Qxe6#
- 1...Sd5
- 2.Bb5#
- 1...Sa6
- 2.Qxe6#
- 1...Sa8
- 2.Qxe6#
- 1...Se8
- 2.Qxe6#
- 1...g4
- 2.Qxf4#
- 1...Bc1
- Tries
- 1.Bh1?
- 1...Bxe5
- 2.Qf1#
- 1...Bc1
- 2.Qf1#
- 1...Bd2
- 2.Qf1#
- 1...Bh2
- 2.Qf1#
- 1...Be3
- 2.Qf1#
- 1...Bg3
- 2.Qf1#
- 1...Sb5
- 2.Qxe6#
- 1...Sa6
- 2.Qxe6#
- 1...Sa8
- 2.Qxe6#
- 1...Se8
- 2.Qxe6#
- 1...g4
- 2.Qxf4#
- 1...Sd5!
- 1...Bxe5
- 1.Be4?
- 1...Bxe5
- 2.Qf1#
- 1...Bc1
- 2.Qf1#
- 1...Bd2
- 2.Qf1#
- 1...Bh2
- 2.Qf1#
- 1...Be3
- 2.Qf1#
- 1...Bg3
- 2.Qf1#
- 1...Sb5
- 2.Qxe6#
- 1...Sd5
- 2.Bd3#
- 1...Sa6
- 2.Qxe6#
- 1...Sa8
- 2.Qxe6#
- 1...Se8
- 2.Qxe6#
- 1...g4!
- 1...Bxe5
- 1.Bb5+?
- 1...Sxb5
- 2.Qxe6#
- 1...Kd5!
- 1...Sxb5
- 1.Bb7?
- 1...Bxe5
- 2.Qf1#
- 1...Bc1
- 2.Qf1#
- 1...Bd2
- 2.Qf1#
- 1...Bh2
- 2.Qf1#
- 1...Be3
- 2.Qf1#
- 1...Bg3
- 2.Qf1#
- 1...Sb5
- 2.Qxe6#
- 1...Sa6
- 2.Qxe6#
- 1...Sa8
- 2.Qxe6#
- 1...Se8
- 2.Qxe6#
- 1...g4
- 2.Qxf4#
- 1...Sd5!
- 1...Bxe5
- 1.Ba8?
- 1...Bxe5
- 2.Qf1#
- 1...Sxa8
- 2.Qxe6#
- 1...Bc1
- 2.Qf1#
- 1...Bd2
- 2.Qf1#
- 1...Bh2
- 2.Qf1#
- 1...Be3
- 2.Qf1#
- 1...Bg3
- 2.Qf1#
- 1...Sb5
- 2.Qxe6#
- 1...Sa6
- 2.Qxe6#
- 1...Se8
- 2.Qxe6#
- 1...g4
- 2.Qxf4#
- 1...Sd5!
- 1...Bxe5
- 1.Qxe6+?
- 1...Sd5
- 2.Bb5#
- 2.Bxd5#
- 2.Qxd5#
- 1...Sxe6!
- 1...Sd5
- 1.Qf5?
- threat
- 2.Qd3#
- 2.Qe4#
- 1...Rxe5
- 2.Qd3#
- 1...Bxe5
- 2.Qd3#
- 2.Qf1#
- 1...Be3
- 2.Qd3#
- 2.Qf1#
- 1...Sb5
- 2.Qd3#
- 2.Qxe6#
- 1...Rd6!
- threat
- 1.Qd7?
- threat
- 2.Qd3#
- 1...Sd5
- 2.Bb5#
- 2.Bxd5#
- 2.Qxd5#
- 1...Rd6!
- threat
- 1.a5?
- 1...Bxe5
- 2.Qf1#
- 1...Bc1
- 2.Qf1#
- 1...Bd2
- 2.Qf1#
- 1...Bh2
- 2.Qf1#
- 1...Be3
- 2.Qf1#
- 1...Bg3
- 2.Qf1#
- 1...Sb5
- 2.Qxe6#
- 1...Sa6
- 2.Qxe6#
- 1...Sa8
- 2.Qxe6#
- 1...Se8
- 2.Qxe6#
- 1...g4
- 2.Qxf4#
- 1...Sd5!
- 1...Bxe5
- 1.Bh1?
- Keys
- 1.Bg2!
- 1...Bxe5
- 2.Qf1#
- 1...Bc1
- 2.Qf1#
- 1...Bd2
- 2.Qf1#
- 1...Bh2
- 2.Qf1#
- 1...Be3
- 2.Qf1#
- 1...Bg3
- 2.Qf1#
- 1...Sb5
- 2.Qxe6#
- 1...Sd5
- 2.Bf1#
- 1...Sa6
- 2.Qxe6#
- 1...Sa8
- 2.Qxe6#
- 1...Se8
- 2.Qxe6#
- 1...g4
- 2.Qxf4#
- 1...Bxe5
- 1.Bg2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(b);OGATE::QAB(F)
- B(b);OGATE,XP(D)::QAB(F)
- S(f);N_GUARD::QAB(F),XR(e)
- S(f);N_GUARD,N_SPINR(e),SBLOCK::B(E)
- P(d);N_GUARD::QAR(F),XB(b)
- Tries
- Try
- B(E);
- Vars
- B(b);OGATE,XP(D)::QAB(F)
- B(b);OGATE::QAB(F)
- S(f);N_GUARD::QAB(F),XR(e)
- P(d);N_GUARD::QAR(F),XB(b)
- Refutation
- S(f);N_SPINR(e)
- Try
- B(E);
- Vars
- B(b);OGATE,XP(D)::QAB(F)
- B(b);OGATE::QAB(F)
- S(f);N_GUARD::QAB(F),XR(e)
- S(f);N_SPINR(e),SBLOCK::B(E)
- Refutation
- P(d);
- Try
- B(E);CHECK
- Vars
- S(f);XB(E)::QAB(F),XR(e)
- Refutation
- K(a);S_FLIGHT
- Try
- B(E);
- Vars
- B(b);OGATE,XP(D)::QAB(F)
- B(b);OGATE::QAB(F)
- S(f);N_GUARD::QAB(F),XR(e)
- P(d);N_GUARD::QAR(F),XB(b)
- Refutation
- S(f);N_SPINR(e)
- Try
- B(E);
- Vars
- B(b);OGATE,XP(D)::QAB(F)
- S(f);N_GUARD,XB(E)::QAB(F),XR(e)
- B(b);OGATE::QAB(F)
- S(f);N_GUARD::QAB(F),XR(e)
- P(d);N_GUARD::QAR(F),XB(b)
- Refutation
- S(f);N_SPINR(e)
- Try
- Q(F);CHECK,XR(e)
- Refutation
- S(f);XQ(F)
- Try
- Q(F);N_PINR(e)
- Threat
- DUALS(2)
- Vars
- R(e);XP(D)::QAB1(F)
- Refutation
- R(e);
- Try
- Q(F);N_PINR(e)
- Threat
- QAB1(F)
- Refutation
- R(e);
- Try
- P(C);
- Vars
- B(b);OGATE,XP(D)::QAB(F)
- B(b);OGATE::QAB(F)
- S(f);N_GUARD::QAB(F),XR(e)
- P(d);N_GUARD::QAR(F),XB(b)
- Refutation
- S(f);N_SPINR(e)
- Try
- Actual
- B(E);
- Vars
- B(b);OGATE,XP(D)::QAB(F)
- B(b);OGATE::QAB(F)
- S(f);N_GUARD::QAB(F),XR(e)
- S(f);N_SPINR(e),SBLOCK::B(E)
- P(d);N_GUARD::QAR(F),XB(b)
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).