MESON Chess Problem Database
Problem Display
PID: 162263 (3Q3B/1p6/3p2b1/6r1/1PP5/NPK2p2/2R4p/kN5R w - - 0 1)
Laue, Hartmut
The Problemist, 2016
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Kd2#
- 1...Rg3
- 2.Kd2#
- 1...Ra5
- 2.Sd2#
- 1...Rb5
- 2.Sd2#
- 1...Rc5
- 2.Sd2#
- 1...Rd5
- 2.Sd2#
- 1...Rf5
- 2.Sd2#
- 1...Rh5
- 2.Sd2#
- 1...Rg1
- Tries
- 1.Sb5?
- threat
- 2.Qa5#
- 2.Qa8#
- 1...Rxb5
- 2.Sd2#
- 2.Sa3#
- 1...b6
- 2.Qa8#
- 1...Rg1!
- threat
- 1.Qa5?
- threat
- 2.Sb5#
- 1...Rxa5
- 2.Sd2#
- 1...Rg1
- 2.Kd2#
- 1...Rb5
- 2.Sd2#
- 2.Sxb5#
- 1...b5
- 2.Sxb5#
- 1...b6!
- threat
- 1.Qxg5?
- threat
- 2.Kd2#
- 2.Sd2#
- 1...Bd3
- 2.Kd2#
- 2.Kxd3#
- 1...f2
- 2.Kd2#
- 1...d5
- 2.Sd2#
- 1...Bxc2!
- threat
- 1.Sb5?
- Keys
- 1.Qa8!
- threat
- 2.Sb5#
- 1...Rg1
- 2.Kd2#
- 1...Ra5
- 2.Sd2#
- 1...Rb5
- 2.Sd2#
- 2.Sxb5#
- 1...b5
- 2.Sxb5#
- threat
- 1.Qa8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- R(d);N_GUARD::B(J)+K(F)
- R(d);N_GUARD::R(B)+S(A)
- R(d);N_GUARD,P_PINP(H)::R(B)+S(A)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(g);::QAB(I)
- Refutation
- R(d);
- Try
- Q(I);
- Threat
- QAR(I)+S(D)
- Vars
- R(d);N_GUARD,XQ(I)::R(B)+S(A)
- R(d);N_GUARD::B(J)+K(F)
- P(g);::QAR(I)+S(D),XP(g)
- Refutation
- P(g);
- Try
- Q(I);XR(d)
- Threat
- DUALS(2)
- Vars
- P(c);::B(J)+K(F)
- P(e);::R(B)+S(A)
- Refutation
- B(f);XR(C)
- Try
- Actual
- Q(I);
- Threat
- QAR(I)+S(D)
- Vars
- R(d);N_GUARD::B(J)+K(F)
- R(d);N_GUARD::R(B)+S(A)
- P(g);::QAR(I)+S(D),XP(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).