MESON Chess Problem Database
Problem Display
PID: 180619 (3r4/6Q1/2p5/4p3/1RnPP1NR/P1kN4/2Bn2b1/2K1B3 w - - 0 1)
Barth, Michael
2nd HM., StrateGems, 2017
#2
11 + 7
SOLUTION
- SOUND
- Sets
- 1...Kxd4
- 2.Qxe5#
- 1...Rxd4
- 2.Rb3#
- 1...Sb2
- 2.Bxd2#
- 1...Sxa3
- 2.Bxd2#
- 1...Se3
- 2.Bxd2#
- 1...Sa5
- 2.Bxd2#
- 1...Sb6
- 2.Bxd2#
- 1...Sd6
- 2.Bxd2#
- 1...exd4
- 2.Rb3#
- 1...Kxd4
- Tries
- 1.Sb2?
- threat
- 2.Rxc4#
- 1...Kxd4
- 2.Qxe5#
- 1...Rxd4
- 2.Sd1#
- 2.Sa4#
- 2.Rb3#
- 1...Sxb2
- 2.Bxd2#
- 1...Sxa3
- 2.Bxd2#
- 1...Se3
- 2.Sa4#
- 2.Bxd2#
- 1...Sa5
- 2.Sd1#
- 2.Sa4#
- 2.Bxd2#
- 1...Sb6
- 2.Sd1#
- 2.Bxd2#
- 1...Sd6
- 2.Sd1#
- 2.Sa4#
- 2.Bxd2#
- 1...Bf1!
- threat
- 1.Sdxe5?
- threat
- 2.Rxc4#
- 1...Kxd4
- 2.Sd7#
- 1...Rxd4
- 2.Rb3#
- 1...Sxa3
- 2.Bxd2#
- 1...Sxe5
- 2.Bxd2#
- 1...Sb2
- 2.Bxd2#
- 1...Se3
- 2.Bxd2#
- 1...Sa5
- 2.Bxd2#
- 1...Sb6
- 2.Bxd2#
- 1...Sd6
- 2.Bxd2#
- 1...Bf1!
- threat
- 1.Se3?
- threat
- 2.Rxc4#
- 1...Rxd4
- 2.Sd1#
- 2.Rb3#
- 1...Sxa3
- 2.Sd1#
- 2.Bxd2#
- 1...Sxe3
- 2.Bxd2#
- 1...Sb2
- 2.Bxd2#
- 1...Sa5
- 2.Sd1#
- 2.Bxd2#
- 1...Sb6
- 2.Sd1#
- 2.Bxd2#
- 1...Sd6
- 2.Sd1#
- 2.Bxd2#
- 1...Kxd4!
- threat
- 1.Bxd2+?
- 1...Kxd4
- 2.Qxe5#
- 1...Sxd2!
- 1...Kxd4
- 1.Qxe5?
- threat
- 2.Rb3#
- 1...Sxa3
- 2.Bxd2#
- 2.d5#
- 1...Sxe5
- 2.Bxd2#
- 1...Sb2
- 2.Bxd2#
- 2.d5#
- 1...Se3
- 2.Bxd2#
- 2.d5#
- 1...Sa5
- 2.Bxd2#
- 2.d5#
- 1...Sb6
- 2.Bxd2#
- 2.d5#
- 1...Sd6
- 2.Bxd2#
- 2.d5#
- 1...Rb8!
- threat
- 1.Sb2?
- Keys
- 1.Sgxe5!
- threat
- 2.Rxc4#
- 1...Kxd4
- 2.Sxc4#
- 1...Rxd4
- 2.Rb3#
- 1...Sxa3
- 2.Bxd2#
- 1...Sxe5
- 2.Bxd2#
- 1...Sb2
- 2.Bxd2#
- 1...Se3
- 2.Bxd2#
- 1...Sa5
- 2.Bxd2#
- 1...Sb6
- 2.Bxd2#
- 1...Sd6
- 2.Bxd2#
- threat
- 1.Sgxe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(c);N_SPINS(a),OGATEB,P_SPINP(e),P_SPINS(d),S_FLIGHT,XP(G)::QAB1(K),XP(e)
- R(g);SBLOCK,XP(G)::R1(F)
- S(d);N_GUARD::B(B),XS(a)
- S(d);N_GUARD,XP(D)::B(B),XS(a)
- P(e);P_SPINP(e),XP(G)::R1(F)
- Tries
- Try
- S(E);
- Threat
- R1(F),XS(d)
- Vars
- K(c);N_SPINS(a),OGATEB,P_SPINP(e),P_SPINS(d),S_FLIGHT,XP(G)::QAB1(K),XP(e)
- S(d);N_GUARD,XS(E)::B(B),XS(a)
- S(d);N_GUARD,XP(D)::B(B),XS(a)
- Refutation
- B(b);
- Try
- S(E);XP(e)
- Threat
- R1(F),XS(d)
- Vars
- K(c);N_SPINS(a),P_SPINS(d),S_FLIGHT,XP(G)::QAB(K)+S(E)
- R(g);SBLOCK,XP(G)::R1(F)
- S(d);N_GUARD,XP(D)::B(B),XS(a)
- S(d);N_GUARD,XS(E)::B(B),XS(a)
- S(d);N_GUARD::B(B),XS(a)
- Refutation
- B(b);
- Try
- S(I);
- Threat
- R1(F),XS(d)
- Vars
- S(d);N_GUARD,XS(I)::B(B),XS(a)
- S(d);N_GUARD::B(B),XS(a)
- Refutation
- K(c);N_SPINS(a),P_SPINP(e),P_SPINS(d),S_FLIGHT,XP(G)
- Try
- B(B);CHECK,XS(a)
- Vars
- K(c);P_SPINP(e),P_SPINS(d),S_FLIGHT,XP(G)::QAB1(K),XP(e)
- Refutation
- S(d);XB(B)
- Try
- Q(K);XP(e)
- Threat
- R1(F)
- Vars
- S(d);N_GUARD,XQ(K)::B(B),XS(a)
- Refutation
- R(g);
- Try
- Actual
- S(I);XP(e)
- Threat
- R1(F),XS(d)
- Vars
- K(c);N_SPINS(a),P_SPINS(d),S_FLIGHT,XP(G)::QAB(K)+S(I),XS(d)
- R(g);SBLOCK,XP(G)::R1(F)
- S(d);N_GUARD,XP(D)::B(B),XS(a)
- S(d);N_GUARD,XS(I)::B(B),XS(a)
- S(d);N_GUARD::B(B),XS(a)
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).