MESON Chess Problem Database
Problem Display
PID: 71938 (8/1pK4B/p2RP3/rRnrk1P1/q1p3Q1/6bb/2N1N3/5n2 w - - 0 1)
Anonymous
Source?, 0000
#2
9 + 11
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Qe4#
- 1...Rd2
- 2.Qe4#
- 1...Rd3
- 2.Qe4#
- 1...Rd4
- 2.Qxd4#
- 1...Rxd6
- 2.Qe4#
- 1...Be1
- 2.Qf4#
- 1...Bf2
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 1...Bh4
- 2.Qf4#
- 1...Bg2
- 2.Qf5#
- 1...Sd2
- 2.Qxg3#
- 1...Sh2
- 2.Qxg3#
- 1...Se3
- 2.Qxg3#
- 1...Sb3
- 2.Rdxd5#
- 2.Qe4#
- 1...Sd3
- 2.Rdxd5#
- 2.Qd4#
- 2.Qe4#
- 1...Se4
- 2.Rdxd5#
- 2.Qxe4#
- 1...Sxe6+
- 2.Rxe6#
- 1...Sd7
- 2.Rdxd5#
- 2.Qd4#
- 2.Qe4#
- 1...Rd1
- Tries
- 1.Sc3?
- threat
- 2.Rxd5#
- 1...Sxe6+
- 2.Rxe6#
- 1...Rxd6
- 2.Qe4#
- 1...Rd1
- 2.Qe4#
- 1...Rd2
- 2.Qe4#
- 1...Rd3
- 2.Qe4#
- 1...Rd4
- 2.Qxd4#
- 1...Bg2
- 2.Qf5#
- 1...Se3
- 2.Qxg3#
- 1...Bxg4!
- threat
- 1.Qf3?
- threat
- 2.Qxd5#
- 2.Qf6#
- 1...Rxd6
- 2.Qe4#
- 1...Bxe6
- 2.Qf6#
- 1...Rd1
- 2.Qe4#
- 2.Qf6#
- 1...Rd2
- 2.Qe4#
- 2.Qf6#
- 1...Rd3
- 2.Qe4#
- 2.Qf6#
- 1...Rd4
- 2.Qf6#
- 1...Bf4
- 2.Qxd5#
- 2.Qxf4#
- 1...Bg2
- 2.Qf5#
- 2.Qf6#
- 1...Bf5
- 2.Qxd5#
- 2.Qxf5#
- 1...Se3
- 2.Qxg3#
- 2.Qf6#
- 1...Se4
- 2.Qxe4#
- 1...Sd7
- 2.Qe4#
- 2.Qxd5#
- 2.Qc3#
- 1...Sxe6+!
- threat
- 1.Qxh3?
- threat
- 2.Qf5#
- 1...Sxe6+
- 2.Rxe6#
- 2.Qxe6#
- 1...Se3
- 2.Qxg3#
- 1...Qxc2!
- threat
- 1.Sc3?
- Keys
- 1.Se3!
- threat
- 2.Rxd5#
- 1...Sxe6+
- 2.Rxe6#
- 1...Rxd6
- 2.Qe4#
- 1...Bxg4
- 2.Sxg4#
- 1...Sxe3
- 2.Qxg3#
- 1...Qd1
- 2.Sxc4#
- 1...Rd1
- 2.Qe4#
- 1...Rd2
- 2.Qe4#
- 1...Rd3
- 2.Qe4#
- 1...Rd4
- 2.Qxd4#
- 1...Bg2
- 2.Qf5#
- threat
- 1.Se3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- R(h);P_SPINS(g)::QAR1(C)
- R(h);N_GUARD,P_SPINS(g)::QAB1(C),XR(h)
- R(h);P_SPINS(g),XR(F)::QAR1(C)
- B(b);N_GUARD::QAB1(C)
- B(b);N_GUARD::QAB1(C),XB(b)
- B(c);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAB(C),XB(b)
- S(g);CHECK,OGATE,P_SPINR(h),XP(G)::R1(F),XS(g)
- Tries
- Try
- S(B);
- Threat
- R1(F),XR(h)
- Vars
- S(g);CHECK,OGATE,P_SPINR(h),XP(G)::R1(F),XS(g)
- R(h);P_SPINS(g),XR(F)::QAR1(C)
- R(h);P_SPINS(g)::QAR1(C)
- R(h);N_GUARD,P_SPINS(g)::QAB1(C),XR(h)
- B(c);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAB(C),XB(b)
- Refutation
- B(c);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- R(h);P_SPINS(g),XR(F)::QAR1(C)
- B(c);XP(G)::QAB1(C)
- R(h);P_SPINS(g)::QAB1(C)
- S(g);N_GUARD,P_SPINR(h)::QAR1(C),XS(g)
- Refutation
- S(g);CHECK,P_SPINR(h),XP(G)
- Try
- Q(C);XB(c)
- Threat
- QAR1(C)
- Vars
- S(a);N_GUARD::QAB(C),XB(b)
- Refutation
- Q(d);XS(A)
- Try
- Actual
- S(A);
- Threat
- R1(F),XR(h)
- Vars
- S(g);CHECK,OGATE,P_SPINR(h),XP(G)::R1(F),XS(g)
- R(h);P_SPINS(g),XR(F)::QAR1(C)
- B(c);XQ(C)::S(A),XB(c)
- S(a);N_GUARD,XS(A)::QAB(C),XB(b)
- Q(d);N_GUARD::S(A),XP(e)
- R(h);P_SPINS(g)::QAR1(C)
- R(h);N_GUARD,P_SPINS(g)::QAB1(C),XR(h)
- B(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).