MESON Chess Problem Database
Problem Display
PID: 183518 (BK4R1/B1PN4/3R1P2/8/1Qp1Pk1r/4N1b1/2b3P1/4r3 w - - 0 1)
Shire, David J
The Problemist, 2017
#2
12 + 6
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Rg4#
- 1...Rh2
- 2.Rg4#
- 1...Rh3
- 2.Rg4#
- 1...Rg4
- 2.Rxg4#
- 1...Rh5
- 2.Rg4#
- 1...Rh6
- 2.Rg4#
- 1...Rh7
- 2.Rg4#
- 1...c3
- 2.Sd5#
- 1...Rh1
- Tries
- 1.Rd1?
- threat
- 2.Qd6#
- 1...Rh5
- 2.Rg4#
- 1...Rxd1!
- threat
- 1.Rd2?
- threat
- 2.Qd6#
- 1...Rh5
- 2.Rg4#
- 1...Rb1!
- threat
- 1.Rd3?
- threat
- 2.Qd6#
- 1...Rh5
- 2.Rg4#
- 1...Rb1!
- threat
- 1.Rd4?
- threat
- 2.Sd5#
- 1...Kxe3
- 2.Qd2#
- 1...Rxe3
- 2.Qd6#
- 1...Bxe4
- 2.Rxe4#
- 1...Rh5!
- threat
- 1.Re6?
- threat
- 2.Sd5#
- 2.Qd6#
- 1...Rxe3
- 2.Qd6#
- 1...Bxe4
- 2.Rxe4#
- 2.Qd6#
- 1...Rb1
- 2.Sd5#
- 1...Rh5
- 2.Rg4#
- 1...Rd1!
- threat
- 1.Qxe1?
- threat
- 2.Sd5#
- 2.Qxg3#
- 1...Bxe4
- 2.Qxg3#
- 1...Rh3
- 2.Sd5#
- 2.Rg4#
- 1...Rg4
- 2.Sd5#
- 2.Rxg4#
- 1...Rh5
- 2.Rg4#
- 2.Qxg3#
- 1...Bf2
- 2.Sd5#
- 2.Qxf2#
- 1...Bh2
- 2.Sd5#
- 2.Qf2#
- 2.Qxh4#
- 2.Qf1#
- 1...Bxe1!
- threat
- 1.Qc3?
- threat
- 2.Qe5#
- 1...Rh5
- 2.Rg4#
- 1...Rb1+!
- threat
- 1.Qa5?
- threat
- 2.Qe5#
- 2.Qf5#
- 2.Qg5#
- 1...Bxe4
- 2.Qe5#
- 2.Qg5#
- 1...Rg4
- 2.Rxg4#
- 2.Qe5#
- 2.Qf5#
- 1...Rh5
- 2.Rg4#
- 1...Rb1+!
- threat
- 1.Qc5?
- threat
- 2.Qe5#
- 2.Qf5#
- 2.Qg5#
- 1...Bxe4
- 2.Qe5#
- 2.Qg5#
- 1...Rg4
- 2.Rxg4#
- 2.Qe5#
- 2.Qf5#
- 1...Rh5
- 2.Rg4#
- 1...Rb1+!
- threat
- 1.Qb5?
- threat
- 2.Qe5#
- 2.Qf5#
- 2.Qg5#
- 1...Bxe4
- 2.Qe5#
- 2.Qg5#
- 1...Rg4
- 2.Rxg4#
- 2.Qe5#
- 2.Qf5#
- 1...Rh5
- 2.Rg4#
- 1...Rb1!
- threat
- 1.f7?
- threat
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Rxe3
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Rb1
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Ra1
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Rc1
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Rd1
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Rf1
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Rg1
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Reh1
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Re2
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Rhh1
- 2.Rf6#
- 2.Rg4#
- 2.f8Q#
- 2.f8R#
- 1...Rh2
- 2.Rf6#
- 2.Rg4#
- 2.f8Q#
- 2.f8R#
- 1...Rh3
- 2.Rf6#
- 2.Rg4#
- 2.f8Q#
- 2.f8R#
- 1...Rg4
- 2.Rf6#
- 2.Rxg4#
- 2.f8Q#
- 2.f8R#
- 1...Rh5
- 2.Rg4#
- 1...Rh6
- 2.Rg4#
- 1...Rh7
- 2.Rf6#
- 2.Rg4#
- 1...Rh8
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Bb1
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Bd1
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Bb3
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Bd3
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Ba4
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Bf2
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Bh2
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...c3
- 2.Sd5#
- 2.Rf6#
- 2.f8Q#
- 2.f8R#
- 1...Bxe4!
- threat
- 1.Rd1?
- Keys
- 1.Rd5!
- threat
- 2.Rf5#
- 1...Kxe4
- 2.Qxc4#
- 1...Bxe4
- 2.Qd6#
- 1...Rh5
- 2.Rg4#
- threat
- 1.Rd5!
There are these versions: 197091
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- R(f);N_GUARD::R1(L)
- R(f);N_GUARD::R1(L),XR(f)
- P(d);::S(B)
- Tries
- Try
- R(E);
- Threat
- QAB(C)
- Vars
- R(f);N_GUARD::R1(L)
- Refutation
- R(a);XR(E)
- Try
- R(E);
- Threat
- QAB(C)
- Vars
- R(f);N_GUARD::R1(L)
- Refutation
- R(a);P_PINQ(C)
- Try
- R(E);
- Threat
- QAB(C)
- Vars
- R(f);N_GUARD::R1(L)
- Refutation
- R(a);P_PINQ(C)
- Try
- R(E);
- Threat
- S(B)
- Vars
- K(e);OGATEB,P_PINP(H),S_FLIGHT,XS(B)::QAB1(C)
- R(a);SBLOCK,XS(B)::QAB(C)
- B(b);OGATE,P_SPINB(b),XP(D)::R1(E),XB(b)
- Refutation
- R(f);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(a);XS(B)::QAB(C)
- R(a);P_PINQ(C)::S(B)
- R(f);N_GUARD::R1(L)
- Refutation
- R(a);
- Try
- Q(C);XR(a)
- Threat
- DUALS(2)
- Vars
- B(b);XP(D)::QAB1(C),XB(c)
- Refutation
- B(c);XQ(C)
- Try
- Q(C);
- Threat
- QAB1(C)
- Vars
- R(f);N_GUARD::R1(L)
- Refutation
- R(a);CHECK
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(f);N_GUARD::R1(L)
- Refutation
- R(a);CHECK
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(f);N_GUARD::R1(L)
- Refutation
- R(a);CHECK
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(f);N_GUARD::R1(L)
- Refutation
- R(a);P_PINQ(C)
- Try
- P(F);
- Threat
- DUALS(3)
- Vars
- R(f);N_GUARD::R1(L)
- Refutation
- B(b);XP(D)
- Try
- Actual
- R(E);
- Threat
- R1(E)
- Vars
- K(e);OGATEB,P-FLIGHT,P_PINP(H),P_SPINP(d),XP(D)::QAR2(C),XP(d)
- B(b);SBLOCK,XP(D)::QAB(C)
- R(f);N_GUARD::R1(L)
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).