MESON Chess Problem Database
Problem Display
PID: 170868 (Kn2N1bq/8/p2pp1B1/n1p1k2P/R3N1p1/1p1R4/3p1QPb/4r3 w - - 0 1)
Rice, John Michael
StrateGems, 2017
#2
9 + 14
| 56 | The Problemist | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qf6
- 2.Qxf6#
- 1...Qxh5
- 2.Qf6#
- 1...Qh6
- 2.Qf6#
- 1...Qh7
- 2.Qf6#
- 1...Rxe4
- 2.Rxe4#
- 1...Bg1
- 2.Qg3#
- 1...Bg3
- 2.Qxg3#
- 1...Qf6
- Tries
- 1.Sg3?
- threat
- 2.Qf4#
- 1...Bxg3
- 2.Qxg3#
- 1...Qf6
- 2.Qxf6#
- 1...Qh6
- 2.Qf6#
- 1...Rf1
- 2.Re4#
- 2.Qe3#
- 2.Qe2#
- 1...Re4
- 2.Rxe4#
- 1...c4
- 2.Qd4#
- 1...Sc4!
- threat
- 1.Sxc5?
- threat
- 2.Qd4#
- 1...dxc5
- 2.Qxc5#
- 1...Re3
- 2.Qxe3#
- 1...Re4
- 2.Rxe4#
- 1...Bg1
- 2.Qg3#
- 2.Qf4#
- 1...Sbc6
- 2.Sd7#
- 1...Sac6!
- threat
- 1.S4xd6?
- threat
- 2.Qxc5#
- 1...Rc1
- 2.Re4#
- 2.Qe3#
- 2.Qe2#
- 1...Re3
- 2.Qxe3#
- 1...Re4
- 2.Rxe4#
- 1...Bg1
- 2.Qg3#
- 2.Qf4#
- 1...Sc4
- 2.Sxc4#
- 1...Sb7
- 2.Sc4#
- 1...c4
- 2.Rxa5#
- 2.Qd4#
- 1...Sd7!
- threat
- 1.S4f6?
- threat
- 2.Sxg4#
- 1...Qxf6
- 2.Qxf6#
- 1...d1Q
- 2.Qb2#
- 1...d1B
- 2.Qb2#
- 1...Re4
- 2.Rxe4#
- 1...g3
- 2.Sg4#
- 2.Qf4#
- 1...Qxh5!
- threat
- 1.Rd5+?
- 1...exd5
- 2.Qf5#
- 1...Kxd5!
- 1...exd5
- 1.Qxc5+?
- 1...Kf4
- 2.Qg5#
- 1...d5
- 2.Qd6#
- 2.Qc7#
- 1...dxc5!
- 1...Kf4
- 1.g3?
- threat
- 2.Qf4#
- 1...Rxe4
- 2.Rxe4#
- 1...Bxg3
- 2.Qxg3#
- 1...Qf6
- 2.Qxf6#
- 1...Qh6
- 2.Qf6#
- 1...Rf1!
- threat
- 1.Sg3?
- Keys
- 1.Sxd2!
- threat
- 2.Qxe1#
- 1...Qh6
- 2.Qf6#
- 1...Ra1
- 2.Re4#
- 2.Qe3#
- 2.Qe2#
- 1...Rb1
- 2.Re4#
- 2.Qe3#
- 2.Qe2#
- 1...Rc1
- 2.Re4#
- 2.Qe3#
- 2.Qe2#
- 1...Rd1
- 2.Re4#
- 2.Qe3#
- 2.Qe2#
- 1...Rf1
- 2.Re4#
- 2.Qe3#
- 2.Qe2#
- 1...Rg1
- 2.Re4#
- 2.Qe3#
- 2.Qe2#
- 1...Rh1
- 2.Re4#
- 2.Qe3#
- 2.Qe2#
- 1...Re2
- 2.Qxe2#
- 1...Re3
- 2.Qxe3#
- 1...Re4
- 2.Rxe4#
- 1...Bg1
- 2.Qg3#
- 2.Qf4#
- 1...Bg3
- 2.Qxg3#
- 1...Bf4
- 2.Qxf4#
- 1...Sc4
- 2.Sxc4#
- 1...c4
- 2.Qd4#
- threat
- 1.Sxd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- Q(n);N_GUARD::QAB1(A),XQ(n)
- Q(n);N_GUARD,XP(F)::QAB1(A)
- Q(n);N_GUARD::QAB1(A)
- R(a);OGATE,XS(E)::R1(D),XR(a)
- B(c);N_GUARD::QAB(A)
- B(c);N_GUARD::QAB(A),XB(c)
- Tries
- Try
- S(E);
- Threat
- QAB1(A)
- Vars
- B(c);OGATE,XS(E)::QAB(A),XB(c)
- Q(n);N_GUARD::QAB1(A),XQ(n)
- Q(n);N_GUARD::QAB1(A)
- R(a);N_GUARD::R1(D),XR(a)
- P(g);N_GUARD::QAB1(A)
- Refutation
- S(f);
- Try
- S(E);XP(g)
- Threat
- QAB1(A)
- Vars
- P(j);OGATE,XS(E)::QAR2(A),XP(j)
- R(a);N_GUARD::QAR2(A),XR(a)
- R(a);N_GUARD::R1(D),XR(a)
- S(l);N_GUARD::S(E)
- Refutation
- S(f);
- Try
- S(E);XP(j)
- Threat
- QAR2(A),XP(g)
- Vars
- R(a);N_GUARD::QAR2(A),XR(a)
- R(a);N_GUARD::R1(D),XR(a)
- S(f);N_GUARD::S(E),XS(f)
- S(f);N_GUARD::S(E)
- Refutation
- S(l);
- Try
- S(E);
- Threat
- S(E),XP(e)
- Vars
- Q(n);OGATE,XS(E)::QAB1(A),XQ(n)
- P(b);OGATE::QAB(A)
- R(a);N_GUARD::R1(D),XR(a)
- Refutation
- Q(n);XP(F)
- Try
- R(C);CHECK
- Vars
- P(k);SBLOCK,XR(C)::QAR1(A)
- Refutation
- K(h);P-FLIGHT,XR(C)
- Try
- Q(A);CHECK,XP(g)
- Vars
- K(h);OGATE,S_FLIGHT::QAB1(A)
- Refutation
- P(j);XQ(A)
- Try
- P(B);
- Threat
- QAB1(A)
- Vars
- R(a);OGATE,XS(E)::R1(D),XR(a)
- B(c);OGATE,XP(B)::QAB(A),XB(c)
- Q(n);N_GUARD::QAB1(A),XQ(n)
- Q(n);N_GUARD::QAB1(A)
- Refutation
- R(a);
- Try
- Actual
- S(E);XP(b)
- Threat
- QAR(A),XR(a)
- Vars
- Q(n);N_GUARD::QAB1(A)
- R(a);N_GUARD::QAR(A),XR(a)
- R(a);N_GUARD::QAR2(A),XR(a)
- R(a);N_GUARD::R1(D),XR(a)
- B(c);N_GUARD::QAB(A),XB(c)
- B(c);N_GUARD::QAB1(A),XB(c)
- S(f);N_GUARD::S(E),XS(f)
- P(g);N_GUARD::QAB1(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).