MESON Chess Problem Database
Problem Display
PID: 152677 (8/4K2n/3p3r/R1NB1k1n/3P2R1/4p2P/2Nb4/7b w - - 0 1)
Hirschenson, Aaron
StrateGems, 2011
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Re6+
- 2.Bxe6#
- 1...Be4
- 2.Bxe4#
- 1...Be1
- 2.Sxe3#
- 1...Bc3
- 2.Sxe3#
- 1...Bb4
- 2.Sxe3#
- 1...Bxa5
- 2.Sxe3#
- 1...S5f6
- 2.Be6#
- 1...S7f6
- 2.Be6#
- 1...Re6+
- Tries
- 1.Sb3?
- threat
- 2.Be4#
- 2.Be6#
- 1...Re6+
- 2.Bxe6#
- 1...Bxd5
- 2.Rxd5#
- 1...Bxa5
- 2.Sxe3#
- 1...Sg5
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 2.Be6#
- 1...Sf4!
- threat
- 1.Sd3?
- threat
- 2.Be4#
- 2.Be6#
- 1...Re6+
- 2.Bxe6#
- 1...Bxd5
- 2.Rxd5#
- 1...Bxa5
- 2.Sxe3#
- 1...Sg5
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 2.Be6#
- 1...Sf4!
- threat
- 1.Sa4?
- threat
- 2.Be4#
- 2.Be6#
- 1...Re6+
- 2.Bxe6#
- 1...Bxd5
- 2.Rxd5#
- 1...Bxa5
- 2.Sxe3#
- 1...Sg5
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 2.Be6#
- 1...Sf4!
- threat
- 1.Se4?
- threat
- 2.Be6#
- 1...Re6+
- 2.Bxe6#
- 1...Bxa5
- 2.Sxe3#
- 1...Sf4
- 2.Sg3#
- 1...Sg5!
- threat
- 1.Sa6?
- threat
- 2.Be4#
- 2.Be6#
- 1...Re6+
- 2.Bxe6#
- 1...Bxd5
- 2.Rxd5#
- 1...Bxa5
- 2.Sxe3#
- 1...Sg5
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 2.Be6#
- 1...Sf4!
- threat
- 1.Sb7?
- threat
- 2.Be4#
- 2.Be6#
- 1...Re6+
- 2.Bxe6#
- 1...Bxd5
- 2.Rxd5#
- 1...Bxa5
- 2.Sxe3#
- 1...Sg5
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 2.Be6#
- 1...Sf4!
- threat
- 1.Sd7?
- threat
- 2.Be4#
- 2.Be6#
- 1...Re6+
- 2.Bxe6#
- 1...Bxd5
- 2.Rxd5#
- 1...Bxa5
- 2.Sxe3#
- 1...Sg5
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 2.Be6#
- 1...Sf4!
- threat
- 1.Sb3?
- Keys
- 1.Se6!
- threat
- 2.Be4#
- 1...Rxe6+
- 2.Bxe6#
- 1...Bxd5
- 2.Rxd5#
- 1...Bxa5
- 2.Sxe3#
- 1...Sf4
- 2.Sg7#
- 1...Be4
- 2.Bxe4#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- R(g);CHECK,N_GUARD::B(G),XR(g)
- B(a);N_GUARD::B(G),XB(a)
- B(b);N_GUARD::S(A),XP(c)
- B(b);N_GUARD,XR(E)::S(A),XP(c)
- S(e);S_CUTR(g)::B(G)
- S(h);S_CUTR(g)::B(G)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(g);CHECK::R(E)+B(G),DCHECK,XR(g)
- B(a);OGATE,P_SPINB(a),XB(G)::R(E),XB(a)
- B(b);N_GUARD,XR(E)::S(A),XP(c)
- S(h);::R(E)+B(G),DCHECK
- Refutation
- S(e);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(g);CHECK::R(E)+B(G),DCHECK,XR(g)
- B(a);OGATE,P_SPINB(a),XB(G)::R(E),XB(a)
- B(b);N_GUARD,XR(E)::S(A),XP(c)
- S(h);::R(E)+B(G),DCHECK
- Refutation
- S(e);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(g);CHECK::R(E)+B(G),DCHECK,XR(g)
- B(a);OGATE,P_SPINB(a),XB(G)::R(E),XB(a)
- B(b);N_GUARD,XR(E)::S(A),XP(c)
- S(h);::R(E)+B(G),DCHECK
- Refutation
- S(e);
- Try
- S(F);
- Threat
- R(E)+B(G),DCHECK
- Vars
- R(g);CHECK::R(E)+B(G),DCHECK,XR(g)
- B(b);N_GUARD,XR(E)::S(A),XP(c)
- S(e);N_GUARD::S(F)
- Refutation
- S(h);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(g);CHECK::R(E)+B(G),DCHECK,XR(g)
- B(a);OGATE,P_SPINB(a),XB(G)::R(E),XB(a)
- B(b);N_GUARD,XR(E)::S(A),XP(c)
- S(h);::R(E)+B(G),DCHECK
- Refutation
- S(e);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(g);CHECK::R(E)+B(G),DCHECK,XR(g)
- B(a);OGATE,P_SPINB(a),XB(G)::R(E),XB(a)
- B(b);N_GUARD,XR(E)::S(A),XP(c)
- S(h);::R(E)+B(G),DCHECK
- Refutation
- S(e);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(g);CHECK::R(E)+B(G),DCHECK,XR(g)
- B(a);OGATE,P_SPINB(a),XB(G)::R(E),XB(a)
- B(b);N_GUARD,XR(E)::S(A),XP(c)
- S(h);::R(E)+B(G),DCHECK
- Refutation
- S(e);
- Try
- Actual
- S(F);
- Threat
- R(E)+B(G),DCHECK
- Vars
- R(g);CHECK,OGATE,XS(F)::R(E)+B(G),DCHECK,XR(g)
- B(a);OGATE,P_SPINB(a),XB(G)::R(E),XB(a)
- B(b);N_GUARD,XR(E)::S(A),XP(c)
- S(e);N_GUARD::S(F)
- B(a);::R(E)+B(G),DCHECK,XB(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).