MESON Chess Problem Database
Problem Display
PID: 250143 (1b3B2/p6p/4BR2/1N2k2K/2r4p/5QP1/q3bn1N/4Rr2 w - - 0 1)
Beechey, H
Sports Referee, 1927
#2
9 + 10
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rg4
- 2.Qf5#
- 1...Rc7
- 2.Bd6#
- 1...Bd6
- 2.Bxd6#
- 1...Se4
- 2.Sg4#
- 1...Rg4
- Tries
- 1.Sg4+?
- 1...Rxg4
- 2.Qf5#
- 1...Sxg4!
- 1...Rxg4
- 1.Bxc4?
- threat
- 2.Rf5#
- 2.Re6#
- 1...Qb1
- 2.Re6#
- 1...Qc2
- 2.Re6#
- 1...Qa6
- 2.Rf5#
- 1...Qxc4!
- threat
- 1.Bd5?
- threat
- 2.Rf5#
- 2.Re6#
- 1...Re4
- 2.Rf5#
- 1...Se4
- 2.Rf5#
- 1...Qb1
- 2.Re6#
- 1...Qc2
- 2.Re6#
- 1...Qa6
- 2.Rf5#
- 1...Rc6
- 2.Rf5#
- 1...Rf4!
- threat
- 1.Bd7?
- threat
- 2.Rf5#
- 2.Re6#
- 1...Re4
- 2.Rf5#
- 1...Se4
- 2.Rf5#
- 1...Qb1
- 2.Re6#
- 1...Qc2
- 2.Re6#
- 1...Qa6
- 2.Rf5#
- 1...Rc1
- 2.Rf5#
- 1...Rc2
- 2.Rf5#
- 1...Rc3
- 2.Rf5#
- 1...Ra4
- 2.Rf5#
- 1...Rb4
- 2.Rf5#
- 1...Rd4
- 2.Rf5#
- 1...Rg4
- 2.Rf5#
- 2.Qf5#
- 1...Rc5
- 2.Rf5#
- 1...Rc6
- 2.Rf5#
- 1...Rc7
- 2.Bd6#
- 2.Rf5#
- 1...Rc8
- 2.Rf5#
- 1...Rf4!
- threat
- 1.Bf7?
- threat
- 2.Rf5#
- 2.Re6#
- 1...Qb1
- 2.Re6#
- 1...Qc2
- 2.Re6#
- 1...Qa6
- 2.Rf5#
- 1...Rc1
- 2.Rf5#
- 1...Rc2
- 2.Rf5#
- 1...Rc3
- 2.Rf5#
- 1...Ra4
- 2.Rf5#
- 1...Rb4
- 2.Rf5#
- 1...Rd4
- 2.Rf5#
- 1...Re4
- 2.Rf5#
- 1...Rg4
- 2.Rf5#
- 2.Qf5#
- 1...Rc5
- 2.Rf5#
- 1...Rc6
- 2.Rf5#
- 1...Rc7
- 2.Bd6#
- 2.Rf5#
- 1...Rc8
- 2.Rf5#
- 1...Se4
- 2.Sg4#
- 2.Rf5#
- 1...Rf4!
- threat
- 1.Bg8?
- threat
- 2.Rf5#
- 2.Re6#
- 1...Qb1
- 2.Re6#
- 1...Qc2
- 2.Re6#
- 1...Qa6
- 2.Rf5#
- 1...Rc1
- 2.Rf5#
- 1...Rc2
- 2.Rf5#
- 1...Rc3
- 2.Rf5#
- 1...Ra4
- 2.Rf5#
- 1...Rb4
- 2.Rf5#
- 1...Rd4
- 2.Rf5#
- 1...Re4
- 2.Rf5#
- 1...Rg4
- 2.Rf5#
- 2.Qf5#
- 1...Rc5
- 2.Rf5#
- 1...Rc6
- 2.Rf5#
- 1...Rc7
- 2.Bd6#
- 2.Rf5#
- 1...Rc8
- 2.Rf5#
- 1...Se4
- 2.Sg4#
- 2.Rf5#
- 1...Rf4!
- threat
- 1.Bg7?
- threat
- 2.Rg6#
- 2.Rh6#
- 1...Rf4
- 2.gxf4#
- 1...Rg4
- 2.Rg6#
- 2.Qf5#
- 1...Se4
- 2.Sg4#
- 1...Sg4
- 2.Qd5#
- 1...h6
- 2.Rg6#
- 2.Rxh6#
- 1...Rc7!
- threat
- 1.Rxe2+?
- 1...Re4
- 2.Qc3#
- 2.Qf4#
- 2.Qf5#
- 1...Se4
- 2.Sg4#
- 1...Qxe2!
- 1...Re4
- 1.Rg6?
- threat
- 2.Bg7#
- 1...Rf4
- 2.gxf4#
- 1...Rc7
- 2.Bd6#
- 1...Se4
- 2.Sg4#
- 1...Sg4
- 2.Qd5#
- 1...hxg6+!
- threat
- 1.Sg4+?
- Keys
- 1.Rh6!
- threat
- 2.Bg7#
- 1...Rf4
- 2.gxf4#
- 1...Rg4
- 2.Qf5#
- 1...Rc7
- 2.Bd6#
- 1...Se4
- 2.Sg4#
- 1...Sg4
- 2.Qd5#
- threat
- 1.Rh6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(e);N_PINQ(C)::QAR1(C)
- R(e);S_CUTB(j)::B(I)
- B(j);N_GUARD::B(I),XB(j)
- S(d);N_GUARD,N_SPINB(c),S_CUTR(e)::S(B)
- Tries
- Try
- S(B);CHECK,N_SPINQ(C)
- Vars
- R(e);XS(B)::QAR1(C)
- Refutation
- S(d);XS(B)
- Try
- B(G);XR(e)
- Threat
- DUALS(2)
- Vars
- Q(b);::R1(H)
- Refutation
- Q(b);XB(G)
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- R(e);N_SPINB(c)::R1(H)
- S(d);N_SPINB(c)::R1(H)
- Q(b);::R1(H)
- R(e);::R1(H)
- Refutation
- R(e);
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- R(e);N_SPINB(c)::R1(H)
- S(d);N_SPINB(c)::R1(H)
- Q(b);::R1(H)
- R(e);::R1(H)
- Refutation
- R(e);
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- Q(b);::R1(H)
- R(e);::R1(H)
- R(e);N_SPINB(c)::R1(H)
- Refutation
- R(e);
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- Q(b);::R1(H)
- R(e);::R1(H)
- R(e);N_SPINB(c)::R1(H)
- Refutation
- R(e);
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- R(e);OGATE::P(D),XR(e)
- S(d);N_GUARD,N_SPINB(c),S_CUTR(e)::S(B)
- S(d);N_PINQ(C)::QAR1(C)
- Refutation
- R(e);
- Try
- R(A);CHECK,N_SPINQ(C),XB(c)
- Vars
- S(d);P_SPINS(d)::S(B)
- Refutation
- Q(b);P_PINQ(C),XR(A)
- Try
- R(H);
- Threat
- B(I)
- Vars
- R(e);OGATE::P(D),XR(e)
- R(e);S_CUTB(j)::B(I)
- S(d);N_GUARD,N_SPINB(c),S_CUTR(e)::S(B)
- S(d);N_PINQ(C)::QAR1(C)
- Refutation
- P(i);CHECK,XR(H)
- Try
- Actual
- R(H);
- Threat
- B(I)
- Vars
- R(e);OGATE::P(D),XR(e)
- R(e);N_PINQ(C)::QAR1(C)
- R(e);S_CUTB(j)::B(I)
- S(d);N_GUARD,N_SPINB(c),S_CUTR(e)::S(B)
- S(d);N_PINQ(C)::QAR1(C)
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).