MESON Chess Problem Database
Problem Display
PID: 265396 (2R1KN2/2PB1PPp/3k2qQ/R3N3/3P4/2n1r3/8/8 w - - 0 1)
Hartong, Jan
Wilson, Francis Vaux
Die Schwalbe, 1972
#2
11 + 5
SOLUTION
- SOUND
- Sets
- 1...Qe6+
- 2.Qxe6#
- 1...Qf6
- 2.Qxf6#
- 1...Rd3
- 2.Sc4#
- 1...Rf3
- 2.Sc4#
- 1...Rg3
- 2.Sc4#
- 1...Rh3
- 2.Sc4#
- 1...Rxe5+
- 2.dxe5#
- 1...Se4
- 2.Sc4#
- 1...Qe6+
- Tries
- 1.Kd8?
- threat
- 2.Sc4#
- 1...Qf6+
- 2.Qxf6#
- 1...Rxe5
- 2.dxe5#
- 1...Sb5!
- threat
- 1.Se6?
- threat
- 2.Sc4#
- 1...Qxf7+
- 2.Sxf7#
- 1...Qxe6+
- 2.Qxe6#
- 1...Rxe5
- 2.dxe5#
- 1...Qd3
- 2.f8Q#
- 2.f8B#
- 1...Sb5!
- threat
- 1.Sxg6?
- threat
- 2.Sf4#
- 2.Sh4#
- 2.Se7#
- 2.Sf8#
- 2.Sh8#
- 2.f8Q#
- 2.f8B#
- 1...Rxe5+
- 2.Sxe5#
- 2.dxe5#
- 1...hxg6
- 2.Qxg6#
- 2.f8Q#
- 2.f8B#
- 1...Sb5
- 2.Sf4#
- 2.Se7#
- 1...Re1
- 2.Sf4#
- 2.Sh4#
- 2.Se7#
- 2.Sf8#
- 2.Sh8#
- 2.f8Q#
- 2.f8B#
- 1...Re2
- 2.Sf4#
- 2.Sh4#
- 2.Se7#
- 2.Sf8#
- 2.Sh8#
- 2.f8Q#
- 2.f8B#
- 1...Rd3
- 2.Sc4#
- 2.Sf4#
- 2.Sh4#
- 2.Se7#
- 2.Sf8#
- 2.Sh8#
- 2.f8Q#
- 2.f8B#
- 1...Rf3
- 2.Sc4#
- 2.Sf4#
- 1...Rg3
- 2.Sc4#
- 2.f8Q#
- 2.f8B#
- 1...Rh3
- 2.Sc4#
- 2.Sh4#
- 2.f8Q#
- 2.f8B#
- 1...Re4
- 2.Sf4#
- 2.Sh4#
- 2.Se7#
- 2.Sf8#
- 2.Sh8#
- 2.f8Q#
- 2.f8B#
- 1...Sb1
- 2.Sf4#
- 2.Sh4#
- 2.Se7#
- 2.Sf8#
- 2.Sh8#
- 2.f8Q#
- 2.f8B#
- 1...Sd1
- 2.Sf4#
- 2.Sh4#
- 2.Se7#
- 2.Sf8#
- 2.Sh8#
- 2.f8Q#
- 2.f8B#
- 1...Sa2
- 2.Sf4#
- 2.Sh4#
- 2.Se7#
- 2.Sf8#
- 2.Sh8#
- 2.f8Q#
- 2.f8B#
- 1...Se2
- 2.Sf4#
- 2.Sh4#
- 2.Se7#
- 2.Sf8#
- 2.Sh8#
- 2.f8Q#
- 2.f8B#
- 1...Sa4
- 2.Sf4#
- 2.Sh4#
- 2.Se7#
- 2.Sf8#
- 2.Sh8#
- 2.f8Q#
- 2.f8B#
- 1...Se4
- 2.Sc4#
- 2.f8Q#
- 2.f8B#
- 1...Sd5!
- threat
- 1.Kd8?
- Keys
- 1.Be6!
- threat
- 2.Ra6#
- 1...Qxf7+
- 2.Bxf7#
- 1...Qxe6+
- 2.Qxe6#
- 1...Sd5
- 2.Rxd5#
- 1...Qb1
- 2.Bf5#
- 1...Qd3
- 2.Bf5#
- 1...Qe4
- 2.Bf5#
- 1...Qg2
- 2.Bg4#
- 1...Sa4
- 2.Rd5#
- threat
- 1.Be6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 7
- Sets
- Q(d);CHECK,N_PINP(G),N_PINS(C),OGATE::QAR1(D),XQ(d)
- Q(d);N_PINP(G),OGATE::QAR2(D),XQ(d)
- R(b);N_PINS(C)::S(C)
- R(b);CHECK,OGATE,XS(C)::P(A),XR(b)
- S(a);N_PINS(C)::S(C)
- Tries
- Try
- K(J);N_SPINP(G),N_SPINS(C),P-FLIGHT
- Threat
- S(C)
- Vars
- Q(d);CHECK,OGATE::QAR2(D),XQ(d)
- R(b);OGATE,XS(C)::P(A),XR(b)
- Refutation
- S(a);
- Try
- S(K);N_PINQ(d),N_SPINS(C)
- Threat
- S(C)
- Vars
- Q(d);CHECK,XP(G)::S(C),XQ(d)
- Q(d);CHECK,N_PINP(G),OGATE,P_SPINQ(d),XS(K)::QAR1(D),XQ(d)
- R(b);OGATE,P_PINS(K),XS(C)::P(A),XR(b)
- Q(d);N_PINP(G)::P=Q
- Refutation
- S(a);
- Try
- S(K);N_SPINP(G),XQ(d)
- Threat
- DUALS(7)
- Refutation
- S(a);
- Try
- Actual
- B(F);N_PINQ(d),N_SPINS(C)
- Threat
- R(B)
- Vars
- Q(d);CHECK,OGATE,XP(G)::QAR(D)+B(F),XQ(d)
- Q(d);CHECK,N_PINP(G),OGATE,P_SPINQ(d),XB(F)::QAR1(D),XQ(d)
- S(a);N_GUARD::R1(B),XS(a)
- Q(d);N_PINP(G),OGATEB::QAR(D)+B(F)
- S(a);N_GUARD::R1(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).