MESON Chess Problem Database
Problem Display
PID: 66757 (3R4/7N/8/2p1PPp1/3pk1P1/R6P/3Q1p2/2B2Kn1 w - - 0 1)
Hoffmann, Martin Wolfgang
idee & form, 1988
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...Sxh3
- 2.Qe2#
- 1...d3
- 2.Qe3#
- 1...c4
- 2.Qxd4#
- 1...Se2
- Tries
- 1.Sf8?
- 1...Sxh3
- 2.Qe2#
- 1...d3
- 2.Qe3#
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...c4
- 2.Qxd4#
- 1...Kxe5!
- 1...Sxh3
- 1.Rb3?
- 1...Sxh3
- 2.Qe2#
- 1...d3
- 2.Qe3#
- 1...c4
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...Kxe5!
- 1...Sxh3
- 1.Rc3?
- 1...Sxh3
- 2.Qe2#
- 1...dxc3
- 2.Qe3#
- 2.Qd5#
- 1...d3
- 2.Qe3#
- 1...c4
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...Kxe5!
- 1...Sxh3
- 1.Re3+?
- 1...dxe3
- 2.Qxe3#
- 1...Kf4!
- 1...dxe3
- 1.Rg3?
- 1...Sxh3
- 2.Qe2#
- 1...c4
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...d3
- 2.Qe3#
- 1...Kxe5!
- 1...Sxh3
- 1.Ra6?
- 1...Kf3
- 2.Qd3#
- 1...Kxe5
- 2.Re6#
- 1...Sxh3
- 2.Qe2#
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...d3
- 2.Qe3#
- 1...c4!
- 1...Kf3
- 1.Ra7?
- 1...Kf3
- 2.Qd3#
- 1...Kxe5
- 2.Re7#
- 1...Sxh3
- 2.Qe2#
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...d3
- 2.Qe3#
- 1...c4!
- 1...Kf3
- 1.Rxd4+?
- 1...Kxe5
- 2.Re3#
- 2.Qe3#
- 1...cxd4!
- 1...Kxe5
- 1.Rd5?
- threat
- 2.Sf6#
- 1...d3
- 2.Qxd3#
- 1...Kxd5!
- threat
- 1.Rd6?
- 1...Sxh3
- 2.Qe2#
- 1...d3
- 2.Qe3#
- 1...c4
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...Kxe5!
- 1...Sxh3
- 1.Rd7?
- 1...Sxh3
- 2.Qe2#
- 1...d3
- 2.Qe3#
- 1...c4
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...Kxe5!
- 1...Sxh3
- 1.Re8?
- threat
- 2.Sf6#
- 1...d3
- 2.Qxd3#
- 1...Kd5!
- threat
- 1.Qa2?
- threat
- 2.Qd5#
- 1...Kxe5
- 2.Qd5#
- 2.Qe6#
- 1...c4!
- threat
- 1.Qb2?
- 1...Sxh3
- 2.Qe2#
- 1...c4
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...d3
- 2.Sxg5#
- 1...Kxe5!
- 1...Sxh3
- 1.Qxf2?
- 1...Sxh3
- 2.Qe1#
- 2.Qe2#
- 1...c4
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...d3
- 2.Qe3#
- 1...Kxe5!
- 1...Sxh3
- 1.h4?
- 1...gxh4
- 2.Qf4#
- 1...d3
- 2.Qe3#
- 1...c4
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...Sh3
- 2.Qe2#
- 1...Kxe5!
- 1...gxh4
- 1.e6?
- 1...Sxh3
- 2.Qe2#
- 1...d3
- 2.Qe3#
- 1...c4
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...Ke5!
- 1...Sxh3
- 1.f6?
- 1...Sxh3
- 2.Qe2#
- 1...d3
- 2.Qe3#
- 1...c4
- 2.Qxd4#
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...Kxe5!
- 1...Sxh3
- 1.Sf8?
- Keys
- 1.Ra5!
- 1...Kf3
- 2.Qd3#
- 1...Kxe5
- 2.Qxd4#
- 1...Sxh3
- 2.Qe2#
- 1...c4
- 2.Sxg5#
- 1...Se2
- 2.Qxe2#
- 1...Sf3
- 2.Qe2#
- 1...d3
- 2.Qe3#
- 1...Kf3
- 1.Ra5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- S(a);N_GUARD,XP(E)::QAR2(C)
- P(c);N_GUARD::QAR1(C)
- P(e);N_GUARD::QAR1(C),XP(c)
- Tries
- Try
- S(I);
- Vars
- S(a);N_GUARD,XP(E)::QAR2(C)
- P(c);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- P(e);N_GUARD::QAR1(C),XP(c)
- Refutation
- K(d);P-FLIGHT,XP(G)
- Try
- R(D);
- Vars
- S(a);N_GUARD,XP(E)::QAR2(C)
- P(c);N_GUARD::QAR1(C)
- P(e);N_GUARD::QAR1(C),XP(c)
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- Refutation
- K(d);P-FLIGHT,XP(G)
- Try
- R(D);
- Vars
- S(a);N_GUARD,XP(E)::QAR2(C)
- P(c);N_GUARD::QAR1(C)
- P(e);N_GUARD::QAR1(C),XP(c)
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- Refutation
- K(d);P-FLIGHT,XP(G)
- Try
- R(D);CHECK
- Vars
- P(c);OGATE,XR(D)::QAR1(C),XP(c)
- Refutation
- K(d);P-FLIGHT
- Try
- R(D);
- Vars
- S(a);N_GUARD,XP(E)::QAR2(C)
- P(e);N_GUARD::QAR1(C),XP(c)
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- P(c);N_GUARD::QAR1(C)
- Refutation
- K(d);P-FLIGHT,XP(G)
- Try
- R(D);
- Vars
- K(d);S_FLIGHT::QAR2(C)
- K(d);OGATEB,P-FLIGHT,XP(G)::R1(D)
- S(a);N_GUARD,XP(E)::QAR2(C)
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- P(c);N_GUARD::QAR1(C)
- Refutation
- P(e);
- Try
- R(D);
- Vars
- K(d);S_FLIGHT::QAR2(C)
- K(d);OGATEB,P-FLIGHT,XP(G)::R(D)
- S(a);N_GUARD,XP(E)::QAR2(C)
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- P(c);N_GUARD::QAR1(C)
- Refutation
- P(e);
- Try
- R(J);CHECK,XP(c)
- Refutation
- P(e);XR(J)
- Try
- R(J);
- Threat
- S(I)
- Vars
- P(c);::QAB1(C),XP(c)
- Refutation
- K(d);P_SPINP(c),S_FLIGHT,XR(J)
- Try
- R(J);
- Vars
- S(a);N_GUARD,XP(E)::QAR2(C)
- P(c);N_GUARD::QAR1(C)
- P(e);N_GUARD::QAR1(C),XP(c)
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- Refutation
- K(d);P-FLIGHT,XP(G)
- Try
- R(J);
- Vars
- S(a);N_GUARD,XP(E)::QAR2(C)
- P(c);N_GUARD::QAR1(C)
- P(e);N_GUARD::QAR1(C),XP(c)
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- Refutation
- K(d);P-FLIGHT,XP(G)
- Try
- R(J);
- Threat
- S(I)
- Vars
- P(c);::QAB1(C),XP(c)
- Refutation
- K(d);P_SPINP(c),S_FLIGHT
- Try
- Q(C);
- Threat
- QAB1(C)
- Refutation
- P(e);
- Try
- Q(C);
- Vars
- S(a);N_GUARD,XP(E)::QAR2(C)
- P(e);N_GUARD::QAR1(C),XP(c)
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- P(c);::S(I),XP(f)
- Refutation
- K(d);P-FLIGHT,P_SPINP(c),XP(G)
- Try
- Q(C);XP(b)
- Vars
- P(e);N_GUARD::QAR1(C),XP(c)
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- P(c);N_GUARD::QAR1(C)
- Refutation
- K(d);P-FLIGHT,XP(G)
- Try
- P(E);
- Vars
- P(f);N_GUARD,XP(E)::QAR1(C)
- P(c);N_GUARD::QAR1(C)
- P(e);N_GUARD::QAR1(C),XP(c)
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- Refutation
- K(d);P-FLIGHT,XP(G)
- Try
- P(G);
- Vars
- S(a);N_GUARD,XP(E)::QAR2(C)
- P(c);N_GUARD::QAR1(C)
- P(e);N_GUARD::QAR1(C),XP(c)
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- Refutation
- K(d);P-FLIGHT
- Try
- P(H);
- Vars
- S(a);N_GUARD,XP(E)::QAR2(C)
- P(c);N_GUARD::QAR1(C)
- P(e);N_GUARD::QAR1(C),XP(c)
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- Refutation
- K(d);P-FLIGHT,XP(G)
- Try
- Actual
- R(D);
- Vars
- K(d);S_FLIGHT::QAR2(C)
- K(d);P-FLIGHT,P_SPINP(e),XP(G)::QAB1(C),XP(c)
- S(a);N_GUARD,XP(E)::QAR2(C)
- P(e);::S(I),XP(f)
- S(a);N_GUARD::QAR2(C),XS(a)
- S(a);N_GUARD::QAR2(C)
- P(c);N_GUARD::QAR1(C)
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).