MESON Chess Problem Database
Problem Display
PID: 158719 (n3N1n1/6N1/8/1K1k1p2/3qr1p1/6B1/6B1/3R3R w - - 0 1)
Moen, Kabe
The Problemist Supplement, 2015
#2
7 + 7
SOLUTION
- SOUND
- Sets
- 1...Qxd1
- 2.Rxd1#
- 1...Qd2
- 2.Rxd2#
- 1...Qd3+
- 2.Rxd3#
- 1...Sb6
- 2.Sc7#
- 1...Sc7+
- 2.Sxc7#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...f4
- 2.Rh5#
- 1...Qxd1
- Tries
- 1.Bf3?
- 1...Qd3+
- 2.Rxd3#
- 1...Sc7+
- 2.Sxc7#
- 1...Qxd1
- 2.Rxd1#
- 1...Qd2
- 2.Rxd2#
- 1...f4
- 2.Rh5#
- 1...Sb6
- 2.Sc7#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...gxf3!
- 1...Qd3+
- 1.Bxe4+?
- 1...fxe4
- 2.Rh5#
- 1...Kxe4!
- 1...fxe4
- 1.Bf4?
- 1...Qd3+
- 2.Rxd3#
- 1...Sc7+
- 2.Sxc7#
- 1...Qxd1
- 2.Rxd1#
- 1...Qd2
- 2.Rxd2#
- 1...Sb6
- 2.Sc7#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...g3!
- 1...Qd3+
- 1.Rd2?
- 1...Qd3+
- 2.Rxd3#
- 1...Sc7+
- 2.Sxc7#
- 1...f4
- 2.Rh5#
- 1...Sb6
- 2.Sc7#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qxd2!
- 1...Qd3+
- 1.Rd3?
- 1...Sc7+
- 2.Sxc7#
- 1...f4
- 2.Rh5#
- 1...Sb6
- 2.Sc7#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qxd3+!
- 1...Sc7+
- 1.Rhe1?
- 1...Qd3+
- 2.Rxd3#
- 1...Sc7+
- 2.Sxc7#
- 1...Qxd1
- 2.Rxd1#
- 1...Qd2
- 2.Rxd2#
- 1...Sb6
- 2.Sc7#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...f4!
- 1...Qd3+
- 1.Rhf1?
- threat
- 2.Rxf5#
- 1...Qd3+
- 2.Rxd3#
- 1...Sc7+
- 2.Sxc7#
- 1...Qxd1
- 2.Rxd1#
- 1...Qd2
- 2.Rxd2#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...f4!
- threat
- 1.Rhg1?
- 1...Qd3+
- 2.Rxd3#
- 1...Sc7+
- 2.Sxc7#
- 1...Qxd1
- 2.Rxd1#
- 1...Qd2
- 2.Rxd2#
- 1...Sb6
- 2.Sc7#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...f4!
- 1...Qd3+
- 1.Rh2?
- 1...Qd3+
- 2.Rxd3#
- 1...Sc7+
- 2.Sxc7#
- 1...Qd2
- 2.Rxd2#
- 1...f4
- 2.Rh5#
- 1...Sb6
- 2.Sc7#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qxd1!
- 1...Qd3+
- 1.Rh4?
- 1...Qd3+
- 2.Rxd3#
- 1...Sc7+
- 2.Sxc7#
- 1...Qd2
- 2.Rxd2#
- 1...f4
- 2.Rh5#
- 1...Sb6
- 2.Sc7#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qxd1!
- 1...Qd3+
- 1.Rh5?
- threat
- 2.Rxf5#
- 1...Qd3+
- 2.Rxd3#
- 1...Sc7+
- 2.Sxc7#
- 1...Qd2
- 2.Rxd2#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qxd1!
- threat
- 1.Rh7?
- 1...Qd3+
- 2.Rxd3#
- 1...Sc7+
- 2.Sxc7#
- 1...Qd2
- 2.Rxd2#
- 1...f4
- 2.Rh5#
- 1...Sb6
- 2.Sc7#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qxd1!
- 1...Qd3+
- 1.Rh8?
- 1...Qd3+
- 2.Rxd3#
- 1...Sc7+
- 2.Sxc7#
- 1...Qd2
- 2.Rxd2#
- 1...f4
- 2.Rh5#
- 1...Sb6
- 2.Sc7#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qxd1!
- 1...Qd3+
- 1.Bf3?
- Keys
- 1.Rh6!
- threat
- 2.Rd6#
- 1...Qd3+
- 2.Rxd3#
- 1...Sc7+
- 2.Sxc7#
- 1...Sxh6
- 2.Sf6#
- 1...f4
- 2.Rh5#
- 1...Sf6
- 2.Sxf6#
- threat
- 1.Rh6!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- Q(a);N_SPINQ(a),OGATE,XR(A)::R(B),XQ(a)
- Q(a);OGATEB::R(A),XQ(a)
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- S(f);N_GUARD::S(G)
- S(f);CHECK,N_GUARD::S(G),XS(f)
- S(g);N_GUARD::S(G),XS(g)
- S(g);N_GUARD::S(G)
- P(e);OGATEB::R(B)
- Tries
- Try
- B(C);
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- S(f);CHECK,N_GUARD::S(G),XS(f)
- Q(a);N_SPINQ(a),OGATE,XR(A)::R(B),XQ(a)
- Q(a);OGATEB::R(A),XQ(a)
- P(e);OGATEB::R(B)
- S(f);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- S(g);N_GUARD::S(G)
- Refutation
- P(c);N_SPINR(b),XB(C)
- Try
- B(C);CHECK,XR(b)
- Vars
- P(e);SBLOCK,XB(C)::R(B)
- Refutation
- K(d);N_SPINQ(a),S_FLIGHT,XB(C)
- Try
- B(D);
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- S(f);CHECK,N_GUARD::S(G),XS(f)
- Q(a);N_SPINQ(a),OGATE,XR(A)::R(B),XQ(a)
- Q(a);OGATEB::R(A),XQ(a)
- S(f);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- S(g);N_GUARD::S(G)
- Refutation
- P(c);
- Try
- R(A);
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- S(f);CHECK,N_GUARD::S(G),XS(f)
- P(e);OGATEB::R(B)
- S(f);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- S(g);N_GUARD::S(G)
- Refutation
- Q(a);N_SPINQ(a),XR(A)
- Try
- R(A);
- Vars
- S(f);CHECK,N_GUARD::S(G),XS(f)
- P(e);OGATEB::R(B)
- S(f);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- S(g);N_GUARD::S(G)
- Refutation
- Q(a);CHECK,N_SPINQ(a),XR(A)
- Try
- R(B);
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- S(f);CHECK,N_GUARD::S(G),XS(f)
- Q(a);N_SPINQ(a),OGATE,XR(A)::R(B),XQ(a)
- Q(a);OGATEB::R(A),XQ(a)
- S(f);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- S(g);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- R(B);
- Threat
- R(B),XP(e)
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- S(f);CHECK,N_GUARD::S(G),XS(f)
- Q(a);N_SPINQ(a),OGATE,XR(A)::R(B),XQ(a)
- Q(a);OGATEB::R(A),XQ(a)
- S(g);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- R(B);
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- S(f);CHECK,N_GUARD::S(G),XS(f)
- Q(a);N_SPINQ(a),OGATE,XR(A)::R(B),XQ(a)
- Q(a);OGATEB::R(A),XQ(a)
- S(f);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- S(g);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- R(B);
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- S(f);CHECK,N_GUARD::S(G),XS(f)
- Q(a);OGATEB::R(A),XQ(a)
- P(e);OGATEB::R(B)
- S(f);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- S(g);N_GUARD::S(G)
- Refutation
- Q(a);N_SPINQ(a),XR(A)
- Try
- R(B);
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- S(f);CHECK,N_GUARD::S(G),XS(f)
- Q(a);OGATEB::R(A),XQ(a)
- P(e);OGATEB::R(B)
- S(f);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- S(g);N_GUARD::S(G)
- Refutation
- Q(a);N_SPINQ(a),XR(A)
- Try
- R(B);P_PINP(e)
- Threat
- R(B),XP(e)
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- S(f);CHECK,N_GUARD::S(G),XS(f)
- Q(a);OGATEB::R(A),XQ(a)
- S(g);N_GUARD::S(G)
- Refutation
- Q(a);N_SPINQ(a),XR(A)
- Try
- R(B);
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- S(f);CHECK,N_GUARD::S(G),XS(f)
- Q(a);OGATEB::R(A),XQ(a)
- P(e);OGATEB::R(B)
- S(f);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- S(g);N_GUARD::S(G)
- Refutation
- Q(a);N_SPINQ(a),XR(A)
- Try
- R(B);
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- S(f);CHECK,N_GUARD::S(G),XS(f)
- Q(a);OGATEB::R(A),XQ(a)
- P(e);OGATEB::R(B)
- S(f);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- S(g);N_GUARD::S(G)
- Refutation
- Q(a);N_SPINQ(a),XR(A)
- Try
- Actual
- R(B);
- Threat
- R1(B)
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- S(f);CHECK,N_GUARD::S(G),XS(f)
- S(g);N_GUARD,XR(B)::S(G)
- P(e);OGATEB::R(B)
- S(g);N_GUARD::S(G),XS(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).