MESON Chess Problem Database
Problem Display
PID: 199729 (2b5/1n1p2R1/R2PQ3/p1kN2r1/P1p1P3/K5p1/2N2q2/6B1 w - - 0 1)
Rice, John Michael
Schach-Aktiv, 2008
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Qe3+
- 2.Bxe3#
- 1...Qd4
- 2.Bxd4#
- 1...Rxd5
- 2.Qxd5#
- 1...Sxd6
- 2.Qxd6#
- 1...g2
- 2.Bxf2#
- 1...dxe6
- 2.Rc7#
- 1...Qe3+
- Tries
- 1.Sc3?
- threat
- 2.Rxg5#
- 1...Rxg7
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Sxd6
- 2.Qxd6#
- 1...dxe6
- 2.Rc7#
- 1...Rg4
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Qxe5#
- 1...Rf5
- 2.Qxf5#
- 1...Rg6
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Rh5!
- threat
- 1.Sf4?
- threat
- 2.Rxg5#
- 1...Qe3+
- 2.Bxe3#
- 1...Rxg7
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Sxd6
- 2.Qxd6#
- 1...dxe6
- 2.Rc7#
- 1...Rg4
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Qxe5#
- 1...Rf5
- 2.Qxf5#
- 1...Rg6
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Rh5!
- threat
- 1.Sf6?
- threat
- 2.Rxg5#
- 1...Qe3+
- 2.Bxe3#
- 1...Rxg7
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Sxd6
- 2.Qxd6#
- 1...dxe6
- 2.Rc7#
- 1...Rg4
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Qxe5#
- 1...Rf5
- 2.Qxf5#
- 1...Rg6
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Rh5!
- threat
- 1.Se7?
- threat
- 2.Rxg5#
- 1...Qe3+
- 2.Bxe3#
- 1...Rxg7
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Sxd6
- 2.Qxd6#
- 1...dxe6
- 2.Rc6#
- 1...Rg4
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Qxe5#
- 1...Rf5
- 2.Qxf5#
- 1...Rg6
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Rh5!
- threat
- 1.Rxa5+?
- 1...Kc6
- 2.Scb4#
- 1...Sxa5!
- 1...Kc6
- 1.Rxg5?
- threat
- 2.Sc3#
- 2.Sdb4#
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Qe3+
- 2.Sc3#
- 2.Sdxe3#
- 2.Bxe3#
- 1...Sxd6
- 2.Qxd6#
- 1...c3
- 2.Sxc3#
- 2.Sdb4#
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...dxe6!
- threat
- 1.Qxd7?
- threat
- 2.Rc6#
- 2.Qb5#
- 2.Qc6#
- 2.Qxc8#
- 2.Qc7#
- 1...Qe3+
- 2.Bxe3#
- 1...Rxg7
- 2.Rc6#
- 2.Qb5#
- 2.Qc6#
- 1...Sxd6
- 2.Rc6#
- 2.Qc6#
- 2.Qxd6#
- 2.Qa7#
- 2.Qc7#
- 1...Sd8
- 2.Rxa5#
- 2.Qb5#
- 2.Qa7#
- 1...Bxd7!
- threat
- 1.Sc3?
- Keys
- 1.Sde3!
- threat
- 2.Qxc4#
- 1...Qxe3+
- 2.Bxe3#
- 1...Qxc2
- 2.Sxc2#
- 1...Sxd6
- 2.Qxd6#
- 1...dxe6
- 2.Rc7#
- 1...Qf1
- 2.Sxf1#
- 1...Qe2
- 2.Rxg5#
- 1...Qf7
- 2.Sf5#
- 1...Rd5
- 2.Qxd5#
- 1...c3
- 2.Qc4#
- threat
- 1.Sde3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 2
- Sets
- Q(a);CHECK,OGATE::B(A),XQ(a)
- Q(a);OGATE::B(A),XQ(a)
- R(f);OGATE,XS(F)::QAR1(I),XR(f)
- S(g);OGATE,XP(H)::QAB1(I),XS(g)
- P(b);N_GUARD::B(A),XQ(a)
- P(h);OGATE,XQ(I)::R(J)
- Tries
- Try
- S(F);
- Threat
- R(J),XR(f)
- Vars
- S(g);OGATE,XP(H)::QAB1(I),XS(g)
- P(h);OGATE,XQ(I)::R(J)
- R(f);N_GUARD::QAR1(I),XR(f)
- R(f);N_GUARD::QAR2(I),XR(f)
- R(f);N_GUARD::QAR(I),XR(f)
- Refutation
- R(f);
- Try
- S(F);
- Threat
- R(J),XR(f)
- Vars
- Q(a);CHECK,OGATE::B(A),XQ(a)
- S(g);OGATE,XP(H)::QAB1(I),XS(g)
- P(h);OGATE,XQ(I)::R(J)
- R(f);N_GUARD::QAR1(I),XR(f)
- R(f);N_GUARD::QAR2(I),XR(f)
- R(f);N_GUARD::QAR(I),XR(f)
- Refutation
- R(f);
- Try
- S(F);
- Threat
- R(J),XR(f)
- Vars
- Q(a);CHECK,OGATE::B(A),XQ(a)
- S(g);OGATE,XP(H)::QAB1(I),XS(g)
- P(h);OGATE,XQ(I)::R(J)
- R(f);N_GUARD::QAR1(I),XR(f)
- R(f);N_GUARD::QAR2(I),XR(f)
- R(f);N_GUARD::QAR(I),XR(f)
- Refutation
- R(f);
- Try
- S(F);
- Threat
- R(J),XR(f)
- Vars
- Q(a);CHECK,OGATE::B(A),XQ(a)
- S(g);OGATE,XP(H)::QAB1(I),XS(g)
- P(h);N_GUARD,XQ(I)::R1(G)
- R(f);N_GUARD::QAR1(I),XR(f)
- R(f);N_GUARD::QAR2(I),XR(f)
- R(f);N_GUARD::QAR(I),XR(f)
- Refutation
- R(f);
- Try
- R(G);CHECK,XP(d)
- Vars
- K(e);N_SPINQ(a),P-FLIGHT::S(B)
- Refutation
- S(g);XR(G)
- Try
- R(J);XR(f)
- Threat
- DUALS(6)
- Vars
- S(g);OGATE,XP(H)::QAB1(I),XS(g)
- Refutation
- P(h);XQ(I)
- Try
- Q(I);XP(h)
- Threat
- DUALS(5)
- Vars
- Q(a);CHECK,OGATE::B(A),XQ(a)
- Refutation
- B(i);XQ(I)
- Try
- Actual
- S(F);N_PINQ(a)
- Threat
- QAR1(I),XP(c)
- Vars
- Q(a);CHECK,OGATE,P_SPINQ(a),XS(F)::B(A),XQ(a)
- Q(a);XS(B)::B(A)+S(F),XQ(a)
- S(g);OGATE,XP(H)::QAB1(I),XS(g)
- P(h);OGATE,XQ(I)::R(J)
- Q(a);::B(A)+S(F),XQ(a)
- Q(a);N_GUARD::R(J),XR(f)
- Q(a);::B(A)+S(F)
- R(f);N_GUARD::QAR1(I),XR(f)
- P(c);::QAR1(I)
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).