MESON Chess Problem Database
Problem Display
PID: 206625 (b4R2/2pBK3/n1N3p1/1pNkp3/3rp3/2Q5/1B6/8 w - - 0 1)
Doukhan, Gerard
Sachmatija, 2019
#2
7 + 9
SOLUTION
- SOUND
- Sets
- 1...Rc4
- 2.Qxe5#
- 1...Bxc6
- 2.Be6#
- 1...Rc4
- Tries
- 1.Sb3?
- threat
- 2.Be6#
- 1...Rc4
- 2.Qxe5#
- 1...Sc5
- 2.Qxc5#
- 1...e3!
- threat
- 1.Sa4?
- threat
- 2.Be6#
- 1...Rc4
- 2.Qxe5#
- 1...Sc5
- 2.Qxc5#
- 1...e3!
- threat
- 1.Sxa6?
- threat
- 2.Sxc7#
- 2.Be6#
- 2.Qc5#
- 1...Rc4
- 2.Qxe5#
- 1...e3!
- threat
- 1.Sb7?
- threat
- 2.Be6#
- 1...Rc4
- 2.Qxe5#
- 1...Sc5
- 2.Qxc5#
- 1...e3!
- threat
- 1.Sxd4?
- threat
- 2.Be6#
- 1...exd4
- 2.Qxd4#
- 1...Sxc5!
- threat
- 1.Sa5?
- threat
- 2.Be6#
- 1...Rc4
- 2.Qxe5#
- 1...Sxc5!
- threat
- 1.Sxe5?
- threat
- 2.Qxd4#
- 1...Kxe5
- 2.Qxd4#
- 1...Rd1
- 2.Be6#
- 1...Rd2
- 2.Be6#
- 1...Rd3
- 2.Be6#
- 1...Ra4
- 2.Be6#
- 1...Rb4
- 2.Be6#
- 1...Rc4!
- threat
- 1.Sa7?
- threat
- 2.Be6#
- 1...Rc4
- 2.Qxe5#
- 1...Sxc5!
- threat
- 1.Sd8?
- threat
- 2.Be6#
- 1...Rc4
- 2.Qxe5#
- 1...Sxc5!
- threat
- 1.Rf5?
- threat
- 2.Rxe5#
- 2.Qxd4#
- 1...Bxc6
- 2.Be6#
- 2.Qxd4#
- 1...Rc4
- 2.Rxe5#
- 2.Qxe5#
- 1...Rd3
- 2.Rxe5#
- 1...Rd1
- 2.Rxe5#
- 1...Rd2
- 2.Rxe5#
- 1...Ra4
- 2.Rxe5#
- 1...Rb4
- 2.Rxe5#
- 1...gxf5!
- threat
- 1.Sb3?
- Keys
- 1.Sxe4!
- threat
- 2.Sf6#
- 1...Kxe4
- 2.Qf3#
- 1...Rxe4
- 2.Be6#
- 1...Rc4
- 2.Qxe5#
- threat
- 1.Sxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(a);OGATE,SBLOCK::QAR1(B),XP(e)
- B(i);SBLOCK,XS(D)::B(E)
- Tries
- Try
- S(C);
- Threat
- B(E)
- Vars
- R(a);OGATE,SBLOCK::QAR1(B),XP(e)
- S(f);N_GUARD::QAR1(B),XS(f)
- Refutation
- P(b);
- Try
- S(C);
- Threat
- B(E)
- Vars
- R(a);OGATE,SBLOCK::QAR1(B),XP(e)
- S(f);N_GUARD::QAR1(B),XS(f)
- Refutation
- P(b);
- Try
- S(C);XS(f)
- Threat
- DUALS(3)
- Vars
- R(a);OGATE,SBLOCK::QAR1(B),XP(e)
- Refutation
- P(b);
- Try
- S(C);
- Threat
- B(E)
- Vars
- R(a);OGATE,SBLOCK::QAR1(B),XP(e)
- S(f);N_GUARD::QAR1(B),XS(f)
- Refutation
- P(b);
- Try
- S(D);XR(a)
- Threat
- B(E)
- Vars
- P(e);OGATE,XS(D)::QAR1(B),XP(e)
- Refutation
- S(f);XS(C)
- Try
- S(D);
- Threat
- B(E)
- Vars
- R(a);OGATE::QAR1(B),XP(e)
- Refutation
- S(f);XS(C)
- Try
- S(D);XP(e)
- Threat
- QAR1(B),XR(a)
- Vars
- K(d);P-FLIGHT,P_SPINR(a),XS(D)::QAB1(B),XR(a)
- R(a);::B(E)
- Refutation
- R(a);
- Try
- S(D);
- Threat
- B(E)
- Vars
- R(a);OGATE,SBLOCK::QAR1(B),XP(e)
- Refutation
- S(f);XS(C)
- Try
- S(D);
- Threat
- B(E)
- Vars
- R(a);OGATE,SBLOCK::QAR1(B),XP(e)
- Refutation
- S(f);XS(C)
- Try
- R(G);P_PINP(e)
- Threat
- DUALS(2)
- Vars
- R(a);::R1(G),XP(e)
- Refutation
- P(g);N_SPINP(e),XR(G)
- Try
- Actual
- S(C);XP(b)
- Threat
- S(C)
- Vars
- K(d);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
- R(a);SBLOCK,XS(C)::B(E)
- R(a);OGATE,SBLOCK::QAR1(B),XP(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).