MESON Chess Problem Database
Problem Display
PID: 49756 (B1R1R2B/3p2K1/8/1nN1p3/r2k1N2/qP6/bP6/2Q1brn1 w - - 0 1)
Schaffner, Gerold
The Problemist, 2003
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Qxc5
- 2.Qxc5#
- 1...Bd2
- 2.Qxd2#
- 1...Bf2
- 2.Qd2#
- 1...Bg3
- 2.Qd2#
- 1...Bh4
- 2.Qd2#
- 1...Se2
- 2.Sxe2#
- 1...Sf3
- 2.Se2#
- 1...Sh3
- 2.Se2#
- 1...exf4
- 2.Kg6#
- 2.Kh6#
- 2.Kf7#
- 2.Kh7#
- 2.Kf8#
- 2.Kg8#
- 2.Re4#
- 1...e4
- 2.Kg6#
- 2.Kh6#
- 2.Kf7#
- 2.Kh7#
- 2.Kf8#
- 2.Kg8#
- 2.Rxe4#
- 1...d5
- 2.Sfe6#
- 1...d6
- 2.Sfe6#
- 2.Sce6#
- 1...Qxc5
- Tries
- 1.Kh6?
- threat
- 2.Bxe5#
- 1...Qxc5
- 2.Qxc5#
- 1...Bd2
- 2.Qxd2#
- 1...Sf3
- 2.Se2#
- 1...d6
- 2.Sfe6#
- 2.Sce6#
- 1...Ra6+!
- threat
- 1.Kh7?
- threat
- 2.Bxe5#
- 1...Qxc5
- 2.Qxc5#
- 1...Bd2
- 2.Qxd2#
- 1...Sf3
- 2.Se2#
- 1...d6
- 2.Sfe6#
- 2.Sce6#
- 1...Bb1+!
- threat
- 1.Rxe5?
- threat
- 2.Re4#
- 2.Rd5#
- 2.Qe3#
- 1...Qxc5
- 2.Re4#
- 2.Qe3#
- 2.Qxc5#
- 1...Qxb3
- 2.Re4#
- 1...Rxf4
- 2.Rd5#
- 2.Qe3#
- 2.Qxf4#
- 1...Bxb3
- 2.Re4#
- 1...Rf3
- 2.Re4#
- 2.Rd5#
- 1...Bd2
- 2.Re4#
- 1...Bf2
- 2.Re4#
- 2.Rd5#
- 1...Bb1
- 2.Rd5#
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Sd6
- 2.Rd5#
- 2.Qe3#
- 1...Sc7
- 2.Re4#
- 2.Qe3#
- 1...d5
- 2.Rxd5#
- 2.Qe3#
- 1...Kxe5!
- threat
- 1.Qd1+?
- 1...Bd2
- 2.Qxd2#
- 1...Ke3!
- 1...Bd2
- 1.Qxe1?
- threat
- 2.Qd2#
- 2.Qe4#
- 2.Qxe5#
- 1...Qxb2
- 2.Qxe5#
- 1...Qxc5
- 2.Qd2#
- 2.Qe4#
- 1...Qxb3
- 2.Qe4#
- 1...Rxf4
- 2.Qd2#
- 2.Qxe5#
- 1...Bxb3
- 2.Qe4#
- 1...exf4
- 2.Kg6#
- 2.Kh6#
- 2.Kf7#
- 2.Kh7#
- 2.Kf8#
- 2.Kg8#
- 2.Re4#
- 2.Qd2#
- 2.Qe4#
- 2.Qe5#
- 1...Se2
- 2.Qd2#
- 1...Sc7
- 2.Qc3#
- 2.Qxe5#
- 1...Qb4
- 2.Qe4#
- 2.Qxe5#
- 1...Rf2
- 2.Qxf2#
- 2.Qe4#
- 2.Qxe5#
- 1...Rf3
- 2.Qe4#
- 2.Qxe5#
- 1...Bb1
- 2.Qxe5#
- 1...Sf3
- 2.Qe4#
- 1...Sc3
- 2.Qd2#
- 2.Qxc3#
- 2.Qxe5#
- 2.bxc3#
- 1...Sd6
- 2.Qd2#
- 2.Qc3#
- 2.Qxe5#
- 1...e4
- 2.Kg6#
- 2.Kh6#
- 2.Kf7#
- 2.Kh7#
- 2.Kf8#
- 2.Kg8#
- 2.Rxe4#
- 2.Qd2#
- 2.Qxe4#
- 1...d5
- 2.Sfe6#
- 2.Sce6#
- 2.Qd2#
- 2.Qxe5#
- 1...d6
- 2.Sfe6#
- 2.Sce6#
- 2.Qd2#
- 2.Qe4#
- 1...Rxe1!
- threat
- 1.Kh6?
- Keys
- 1.Kf8!
- threat
- 2.Bxe5#
- 1...Qxc5+
- 2.Qxc5#
- 1...Rxf4+
- 2.Qxf4#
- 1...Bd2
- 2.Qxd2#
- 1...Sf3
- 2.Se2#
- 1...d6
- 2.Se6#
- threat
- 1.Kf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- Q(e);OGATE,XS(E)::QAB1(A),XQ(e)
- B(a);N_GUARD::QAR2(A),XB(a)
- B(a);N_GUARD::QAR2(A)
- S(c);N_GUARD::S(D),XS(c)
- S(c);N_GUARD::S(D)
- P(j);N_GUARD::S(D)
- Tries
- Try
- K(F);P_PINP(i),S_FLIGHT
- Threat
- B(J),XP(i)
- Vars
- Q(e);OGATE,XS(E)::QAB1(A),XQ(e)
- B(a);N_GUARD,P_PINS(D)::QAR2(A),XB(a)
- S(c);N_GUARD::S(D)
- Refutation
- R(f);CHECK
- Try
- K(F);P-FLIGHT,P_PINP(i)
- Threat
- B(J),XP(i)
- Vars
- Q(e);OGATE,XS(E)::QAB1(A),XQ(e)
- B(a);N_GUARD::QAR2(A),XB(a)
- S(c);N_GUARD::S(D)
- Refutation
- B(d);CHECK
- Try
- R(I);XP(i)
- Threat
- DUALS(3)
- Vars
- Q(e);XP(C)::R1(I)
- B(d);XP(C)::R1(I)
- B(a);::R1(I)
- S(h);::QAB1(A)
- Refutation
- K(g);S_FLIGHT,XR(I)
- Try
- Q(A);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::QAR2(A),XB(a)
- Refutation
- K(g);P_SPINP(i),S_FLIGHT
- Try
- Q(A);XB(a)
- Threat
- DUALS(3)
- Vars
- Q(e);XP(B)::QAB1(A),XP(i)
- Q(e);XP(C)::QAR1(A)
- B(d);XP(C)::QAR1(A)
- S(c);::QAR2(A)
- B(d);::QAB1(A),XP(i)
- S(c);::QAR1(A)
- Refutation
- R(b);XQ(A)
- Try
- Actual
- K(F);P_PINP(i),P_SPINS(D),S_FLIGHT
- Threat
- B(J),XP(i)
- Vars
- Q(e);CHECK,OGATE,XS(E)::QAB1(A),XQ(e)
- R(b);CHECK,OGATE,P_PINS(E),XS(D)::QAR2(A),XR(b)
- B(a);N_GUARD::QAR2(A),XB(a)
- S(c);N_PINS(D),P_PINS(E)::S(D)
- P(j);::S(E)
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).