MESON Chess Problem Database
Problem Display
PID: 273247 (4Q3/B2p4/2qb1pK1/rN2pp2/4nP2/3R2P1/4k1P1/1b1R3N w - - 0 1)
Mees, Wouter Jacob Gregorius
3rd HM., TW-25 JT, 1993
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.R3xd2#
- 1...Sf2
- 2.Sd4#
- 2.R3d2#
- 1...Sc3
- 2.Sd4#
- 2.R3d2#
- 1...Sxg3
- 2.Sxg3#
- 2.Sd4#
- 2.R3d2#
- 1...Sc5
- 2.Sc3#
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 2.R3d2#
- 1...exf4
- 2.Sd4#
- 2.R3d2#
- 1...Sd2
- Tries
- 1.Kxf5?
- threat
- 2.Qh5#
- 1...Sxg3+
- 2.Sxg3#
- 1...exf4
- 2.R3d2#
- 1...Sf2
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sc5
- 2.Sc3#
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 1...Sd2!
- threat
- 1.Kh6?
- threat
- 2.Qh5#
- 1...Sxg3
- 2.Sxg3#
- 2.Sd4#
- 2.R3d2#
- 1...exf4
- 2.Sd4#
- 2.R3d2#
- 1...Sd2
- 2.R3xd2#
- 1...Sf2
- 2.Sd4#
- 2.R3d2#
- 1...Sc3
- 2.Sd4#
- 2.R3d2#
- 1...Sc5
- 2.Sc3#
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 2.R3d2#
- 1...Bf8+!
- threat
- 1.Kg7?
- threat
- 2.Qh5#
- 1...Sxg3
- 2.Sxg3#
- 2.Sd4#
- 2.R3d2#
- 1...exf4
- 2.Sd4#
- 2.R3d2#
- 1...Sd2
- 2.R3xd2#
- 1...Sf2
- 2.Sd4#
- 2.R3d2#
- 1...Sc3
- 2.Sd4#
- 2.R3d2#
- 1...Sc5
- 2.Sc3#
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 2.R3d2#
- 1...Bf8+!
- threat
- 1.Kh7?
- threat
- 2.Qh5#
- 1...Sxg3
- 2.Sxg3#
- 2.Sd4#
- 2.R3d2#
- 1...exf4
- 2.Sd4#
- 2.R3d2#
- 1...Sd2
- 2.R3xd2#
- 1...Sf2
- 2.Sd4#
- 2.R3d2#
- 1...Sc3
- 2.Sd4#
- 2.R3d2#
- 1...Sc5
- 2.Sc3#
- 2.Sd4#
- 1...Sg5+!
- threat
- 1.Sc3+?
- 1...Sxc3
- 2.R3d2#
- 1...Qxc3!
- 1...Sxc3
- 1.Kxf5?
- Keys
- 1.Qh8!
- threat
- 2.Qh5#
- 1...Sxg3
- 2.Sxg3#
- 2.R3d2#
- 1...exf4
- 2.Sd4#
- 1...Sd2
- 2.R3xd2#
- 1...Sf2
- 2.R3d2#
- 1...Sc3
- 2.R3d2#
- 1...Sc5
- 2.Sc3#
- 1...Sg5
- 2.R3d2#
- threat
- 1.Qh8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD,P_SPINP(e)::R1(D),XS(c)
- Tries
- Try
- K(H);S_FLIGHT,XP(f)
- Threat
- QAB(J)
- Vars
- S(c);CHECK,P_PINR(D),P_SPINP(e),XP(E)::S(B),XS(c)
- P(e);P_PINS(G),P_SPINS(c),XP(F)::R1(D)
- S(c);P_PINR(D),P_SPINP(e)::S(G)
- Refutation
- S(c);P_PINR(D),P_SPINP(e)
- Try
- K(H);P-FLIGHT
- Threat
- QAB(J)
- Vars
- S(c);N_GUARD,P_SPINP(e)::R1(D),XS(c)
- Refutation
- B(h);CHECK
- Try
- K(H);P-FLIGHT
- Threat
- QAB(J)
- Vars
- S(c);N_GUARD,P_SPINP(e)::R1(D),XS(c)
- Refutation
- B(h);CHECK
- Try
- K(H);S_FLIGHT
- Threat
- QAB(J)
- Vars
- S(c);N_GUARD,P_SPINP(e)::R1(D),XS(c)
- Refutation
- S(c);CHECK,P_SPINP(e)
- Try
- S(G);CHECK
- Vars
- S(c);P_SPINP(e),XS(G)::R1(D)
- Refutation
- Q(g);XS(G)
- Try
- Actual
- Q(J);
- Threat
- QAB(J)
- Vars
- P(e);N_GUARD,XP(F)::S(G)
- S(c);N_GUARD::R1(D),XS(c)
- S(c);N_GUARD::R1(D)
- S(c);N_GUARD,S_CUTQ(g)::S(G)
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).