MESON Chess Problem Database
Problem Display
PID: 56995 (4r3/1Bp3p1/5RK1/2N2NPQ/3P1k2/8/7P/1b2brB1 w - - 0 1)
Hirschenson, Aaron
Probleemblad, 2005
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Rxg1
- 2.Qf3#
- 1...Rf2
- 2.Qh4#
- 1...Rf3
- 2.Qxf3#
- 1...Re3
- 2.Bxe3#
- 1...Re4
- 2.Sxg7#
- 1...Re6
- 2.Sxe6#
- 1...Ra8
- 2.Se6#
- 2.Be3#
- 1...Rb8
- 2.Se6#
- 2.Be3#
- 1...Rc8
- 2.Se6#
- 2.Be3#
- 1...Rd8
- 2.Se6#
- 2.Be3#
- 1...Rf8
- 2.Se6#
- 2.Be3#
- 1...Rg8
- 2.Se6#
- 2.Be3#
- 1...Rh8
- 2.Se6#
- 2.Be3#
- 1...Ba2
- 2.Sd3#
- 2.Sxg7#
- 1...Bd3
- 2.Sxd3#
- 1...Be4
- 2.Be3#
- 1...Bxf5+
- 2.Rxf5#
- 1...Bd2
- 2.Qh4#
- 1...Bf2
- 2.Qf3#
- 1...Bc3
- 2.Qh4#
- 1...Bg3
- 2.hxg3#
- 1...Bb4
- 2.Qh4#
- 1...Bh4
- 2.Qxh4#
- 1...Ba5
- 2.Qh4#
- 1...Rxg1
- Tries
- 1.Bf2?
- threat
- 2.Qf3#
- 2.Qh4#
- 1...Bxf5+
- 2.Rxf5#
- 1...Rxf2
- 2.Qh4#
- 1...Bxf2
- 2.Qf3#
- 1...Rg1
- 2.Qf3#
- 1...Re3
- 2.Bxe3#
- 2.Qh4#
- 1...Re4
- 2.Sxg7#
- 1...Rh8
- 2.Se6#
- 2.Be3#
- 2.Qf3#
- 1...Be4
- 2.Be3#
- 1...c6!
- threat
- 1.Re6?
- threat
- 2.Be3#
- 1...Rxe6+
- 2.Sxe6#
- 1...Rxg1
- 2.Qf3#
- 1...Rf2
- 2.Qh4#
- 1...Rf3
- 2.Qxf3#
- 1...Bd2
- 2.Qh4#
- 1...Bf2
- 2.Qf3#
- 1...Bxf5+!
- threat
- 1.h3?
- threat
- 2.Qg4#
- 1...Rxg1
- 2.Qf3#
- 1...Bxf5+!
- threat
- 1.Bf2?
- Keys
- 1.Be4!
- threat
- 2.Sxg7#
- 2.Be3#
- 1...Rxg1
- 2.Qf3#
- 1...Rxe4
- 2.Sxg7#
- 1...Bxe4
- 2.Be3#
- 1...gxf6
- 2.Be3#
- 1...Rf2
- 2.Qh4#
- 1...Rf3
- 2.Sxg7#
- 2.Qxf3#
- 1...Re5
- 2.Be3#
- 1...Re6
- 2.Be3#
- 1...Rf8
- 2.Be3#
- 1...Bd2
- 2.Sxg7#
- 2.Qh4#
- 1...Bf2
- 2.Qf3#
- threat
- 1.Be4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 10
- Sets
- R(c);N_GUARD,P_PINP(F),XB(A)::QAR1(G)
- R(c);S_CUTB(b)::QAR2(G)
- R(c);N_GUARD::QAR1(G),XR(c)
- R(g);N_GUARD::B(A),XR(g)
- R(g);N_PINS(E)::R(H)+S(E),XP(f)
- R(g);N_GUARD,P_PINR(H)::S(D),XR(g)
- B(a);N_GUARD::S(D),XB(a)
- B(a);S_CUTR(g)::B(A)
- B(a);CHECK,OGATE,P_SPINB(a),XS(E)::R1(H),XB(a)
- B(b);N_GUARD::QAR2(G)
- B(b);S_CUTR(c)::QAR1(G)
- B(b);OGATE::P(B),XB(b)
- B(b);N_GUARD::QAR2(G),XB(b)
- Tries
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,OGATE,P_SPINB(a),XS(E)::R1(H),XB(a)
- R(c);XB(A)::QAR2(G)
- B(b);XB(A)::QAR1(G)
- R(c);P_PINP(F)::QAR1(G)
- R(g);N_PINS(E)::R(H)+S(E),XP(f)
- B(a);S_CUTR(g)::B(A)
- Refutation
- P(e);
- Try
- R(H);
- Threat
- B(A)
- Vars
- R(g);CHECK,XR(H)::S(D),XR(g)
- R(c);N_GUARD,P_PINP(F),XB(A)::QAR1(G)
- R(c);S_CUTB(b)::QAR2(G)
- R(c);N_GUARD::QAR1(G),XR(c)
- B(b);N_GUARD::QAR2(G)
- B(b);S_CUTR(c)::QAR1(G)
- Refutation
- B(a);CHECK,XS(E)
- Try
- P(B);
- Threat
- QAR1(G)
- Vars
- R(c);N_GUARD,P_PINP(F),XB(A)::QAR1(G)
- Refutation
- B(a);CHECK,P_SPINB(a),XS(E)
- Try
- Actual
- B(J);N_SPINS(E)
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD,P_PINP(F),XB(A)::QAR1(G)
- R(g);XB(J)::R(H)+S(E),XP(f)
- B(a);P_PINS(E),XB(J)::B(A)
- P(f);XR(H)::B(A)
- R(c);S_CUTB(b)::QAR2(G)
- R(g);::B(A)
- R(g);P_PINR(H)::B(A)
- B(b);S_CUTR(c)::QAR1(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).