MESON Chess Problem Database
Problem Display
PID: 203401 (3Q4/8/B2n4/2bbR3/1r1k1P1K/1P1p2N1/4n3/4B3 w - - 0 1)
Feenstra Kuiper, Pieter
Algemeen Handelsblad, 1924
#2
8 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bh1
- 2.Sf5#
- 1...Bg2
- 2.Sf5#
- 1...Bxb3
- 2.Sf5#
- 1...Bf3
- 2.Sf5#
- 1...Bc4
- 2.Sf5#
- 1...Bc6
- 2.Sf5#
- 1...Bb7
- 2.Sf5#
- 1...Bf7
- 2.Sf5#
- 1...Ba8
- 2.Sf5#
- 1...Bg8
- 2.Sf5#
- 1...Sc3
- 2.Bf2#
- 1...Sc4
- 2.Sf5#
- 2.Re4#
- 2.Qxd5#
- 1...Se4
- 2.Sf5#
- 2.Rxe4#
- 1...Sb5
- 2.Sf5#
- 2.Re4#
- 2.Qxd5#
- 1...Sf5+
- 2.Sxf5#
- 1...Sb7
- 2.Sf5#
- 2.Re4#
- 2.Qxd5#
- 1...Sf7
- 2.Sf5#
- 2.Re4#
- 2.Qxd5#
- 1...Sc8
- 2.Sf5#
- 2.Re4#
- 2.Qxd5#
- 1...Se8
- 2.Sf5#
- 2.Re4#
- 2.Qxd5#
- 1...d2
- 2.Sxe2#
- 1...Bh1
- Tries
- 1.Re4+?
- 1...Sxe4
- 2.Sf5#
- 1...Bxe4!
- 1...Sxe4
- 1.Qxd6?
- threat
- 2.Sf5#
- 2.Re4#
- 2.Qxd5#
- 1...Sxg3
- 2.Qxd5#
- 1...Sxf4
- 2.Sf5#
- 2.Re4#
- 1...d2
- 2.Sxe2#
- 1...Sc3
- 2.Sf5#
- 2.Bf2#
- 1...Bxd6!
- threat
- 1.Re4+?
- Keys
- 1.Qa5!
- 1...Sf5+
- 2.Sxf5#
- 1...Rxb3
- 2.Bf2#
- 1...Bxb3
- 2.Qxc5#
- 1...Sxg3
- 2.Qa1#
- 1...Sxf4
- 2.Qa1#
- 1...Be4
- 2.Qxc5#
- 1...Se4
- 2.Sf5#
- 1...d2
- 2.Sxe2#
- 1...Ra4
- 2.Bf2#
- 1...Rc4
- 2.Bf2#
- 1...Rb5
- 2.Bf2#
- 1...Rb6
- 2.Bf2#
- 1...Rb7
- 2.Bf2#
- 1...Rb8
- 2.Bf2#
- 1...Bb6
- 2.Qxd5#
- 1...Ba7
- 2.Qxd5#
- 1...Bh1
- 2.Qxc5#
- 1...Bg2
- 2.Qxc5#
- 1...Bf3
- 2.Qxc5#
- 1...Bc4
- 2.Qxc5#
- 1...Bc6
- 2.Qxc5#
- 1...Be6
- 2.Qxc5#
- 1...Bb7
- 2.Qxc5#
- 1...Bf7
- 2.Qxc5#
- 1...Ba8
- 2.Qxc5#
- 1...Bg8
- 2.Qxc5#
- 1...Sc1
- 2.Qa1#
- 1...Sg1
- 2.Qa1#
- 1...Sc3
- 2.Bf2#
- 1...Sc4
- 2.Sf5#
- 1...Sb5
- 2.Sf5#
- 1...Sb7
- 2.Sf5#
- 1...Sf7
- 2.Sf5#
- 1...Sc8
- 2.Sf5#
- 1...Se8
- 2.Sf5#
- 1...Sf5+
- 1.Qa5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 10
- ADDED MATES = 22
- REMOVED MATES = 0
- Sets
- B(f);P_SPINS(g)::S(C)
- B(f);P_SPINS(g),XP(B)::S(C)
- S(a);SBLOCK::B(A)
- S(g);CHECK,N_GUARD,P_SPINB(f)::S(C),XS(g)
- P(b);N_GUARD::S(C),XS(a)
- Tries
- Try
- R(F);CHECK
- Vars
- S(g);P_SPINB(f),SBLOCK,XR(F)::S(C)
- Refutation
- B(f);P_SPINS(g),XR(F)
- Try
- Q(H);P_PINB(f),XS(g)
- Threat
- DUALS(3)
- Vars
- S(a);XS(C)::QAR1(H),XB(f)
- P(b);N_GUARD::S(C),XS(a)
- Refutation
- B(e);N_SPINB(f),XQ(H)
- Try
- Actual
- Q(H);
- Vars
- S(g);CHECK,N_GUARD::S(C),XS(g)
- R(c);XP(B)::B(A)
- B(f);XP(B)::QAB1(H),XB(e)
- S(a);N_GUARD,XS(C)::QAB(H)
- S(a);N_GUARD,XP(D)::QAB(H)
- B(f);::QAB1(H),XB(e)
- S(g);N_GUARD::S(C)
- P(b);N_GUARD::S(C),XS(a)
- R(c);::B(A)
- B(e);OGATE::QAR1(H),XB(f)
- S(a);N_GUARD::QAB(H)
- S(a);SBLOCK::B(A)
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).