MESON Chess Problem Database
Problem Display
PID: 204448 (1K2Q3/1P3p2/b1ppNPp1/r2R2R1/3NkB2/6r1/2PP2q1/1B6 w - - 0 1)
van Dijk, Johannes
Tijdschrift vd NSB, 1925
#2
12 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rg4
- 2.c4#
- 1...Rxg5
- 2.c4#
- 1...Rg4
- Tries
- 1.Be3?
- threat
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 2.c4#
- 1...Qxd2
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Rxg5
- 2.c4#
- 1...Rxd5
- 2.Sc5#
- 2.c4#
- 1...fxe6
- 2.Qxg6#
- 2.Qxe6#
- 2.c4#
- 1...Qf1
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Qh1
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Qh3
- 2.Sc5#
- 2.c4#
- 1...Qg1
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Qe2
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Ra1
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Ra2
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Ra3
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Rb5
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Rc5
- 2.Sf4#
- 2.Sxc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 2.c4#
- 1...Bf1
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Be2
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Bd3
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 2.cxd3#
- 1...Bc4
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...c5
- 2.Sf4#
- 2.Sxc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 2.c4#
- 1...Rxe3!
- threat
- 1.Bxg3?
- threat
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 2.c4#
- 1...Qxd2
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Rxd5
- 2.Rg4#
- 2.c4#
- 1...cxd5
- 2.Rg4#
- 2.c4#
- 1...fxe6
- 2.Qxg6#
- 2.Qxe6#
- 2.c4#
- 1...Qf1
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Qh1
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Qf3
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Qh3
- 2.Sc5#
- 2.c4#
- 1...Qg1
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Qe2
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Ra1
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Ra2
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Ra3
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Rb5
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Rc5
- 2.Sf4#
- 2.Sxc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 2.c4#
- 1...Bf1
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Be2
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Bd3
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 2.cxd3#
- 1...Bc4
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...c5
- 2.Sf4#
- 2.Sxc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 2.c4#
- 1...Qxg3!
- threat
- 1.Bxd6?
- threat
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 2.Rge5#
- 1...Rxg5
- 2.c4#
- 1...cxd5
- 2.Re5#
- 1...fxe6
- 2.Qxg6#
- 2.Qxe6#
- 1...Qh3
- 2.Sc5#
- 2.Rge5#
- 1...Rc5
- 2.Sf4#
- 2.Sxc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 2.Rge5#
- 1...c5
- 2.Sf4#
- 2.Sxc5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 2.Rde5#
- 2.Rge5#
- 1...Rxd5!
- threat
- 1.Qxc6?
- threat
- 2.Rde5#
- 1...Rxd5
- 2.Qxd5#
- 1...fxe6!
- threat
- 1.Be3?
- Keys
- 1.Rg4!
- threat
- 2.Sc7#
- 1...Kxd5
- 2.Qxc6#
- 1...Rxg4
- 2.c4#
- 1...Rxd5
- 2.Bxg3#
- 1...cxd5
- 2.Bxg3#
- 1...fxe6
- 2.Qxe6#
- threat
- 1.Rg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(b);N_GUARD::B(A)+P(B)
- R(b);N_GUARD,XR(G)::B(A)+P(B)
- Tries
- Try
- B(E);
- Threat
- DUALS(7)
- Vars
- R(b);XR(G)::B(A)+P(B)
- Refutation
- R(b);XB(E)
- Try
- B(E);XR(b)
- Threat
- DUALS(7)
- Refutation
- Q(a);XB(E)
- Try
- B(E);XP(g)
- Threat
- DUALS(7)
- Vars
- R(b);N_GUARD,XR(G)::B(A)+P(B)
- P(f);XR(F)::R1(G)
- Refutation
- R(d);XR(F)
- Try
- Q(L);XP(f)
- Threat
- QAB(L)+R(F),DCHECK
- Vars
- R(d);OGATE,P_SPINR(d),XR(F)::QAB1(L),XR(d)
- Refutation
- P(i);XS(H)
- Try
- Actual
- R(G);
- Threat
- QAR(L)+S(H)
- Vars
- K(c);OGATEB,S_FLIGHT,XR(F)::QAB1(L),XP(f)
- R(b);N_GUARD,XR(G)::B(A)+P(B)
- R(d);SBLOCK,XR(F)::R(G)+B(E),XR(b)
- P(f);SBLOCK,XR(F)::R(G)+B(E),XR(b)
- P(i);OGATE,P_SPINP(i),XS(H)::QAR2(L),XP(i)
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).