MESON Chess Problem Database
Problem Display
PID: 11242 (5K2/8/8/8/8/5Q1b/2R1B2r/4k3 w - - 0 1)
Fabel, Karl
Der Mitarbeiter, 1937
#2
4 + 3
| 3295 | Einfuhrung in die Welt des Schachproblem | 1984 |
| 2786 | More Fun with Chess Miniatures | 2000 |
| 3713 | Snap | 2004 |
| 23 | Die Schwalbe | 2005 |
| 5454 | Near Snap | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Qg3#
- 1...Rxe2
- 2.Qxe2#
- 1...Rg2
- 2.Qf1#
- 1...Bf1
- 2.Qxf1#
- 1...Bg2
- 2.Qg3#
- 1...Bg4
- 2.Qf1#
- 1...Bf5
- 2.Qf1#
- 1...Be6
- 2.Qf1#
- 1...Bd7
- 2.Qf1#
- 1...Bc8
- 2.Qf1#
- 1...Rh1
- Tries
- 1.Kg7?
- 1...Rxe2
- 2.Qxe2#
- 1...Rh1
- 2.Qg3#
- 1...Rf2
- 2.Qc3#
- 1...Bf1
- 2.Qxf1#
- 1...Bg2
- 2.Qg3#
- 1...Bg4
- 2.Qf1#
- 1...Bf5
- 2.Qf1#
- 1...Be6
- 2.Qf1#
- 1...Bd7
- 2.Qf1#
- 1...Bc8
- 2.Qf1#
- 1...Rg2+!
- 1...Rxe2
- 1.Ke8?
- 1...Rxe2+
- 2.Qxe2#
- 1...Rh1
- 2.Qg3#
- 1...Rf2
- 2.Qc3#
- 1...Rg2
- 2.Qf1#
- 1...Bf1
- 2.Qxf1#
- 1...Bg2
- 2.Qg3#
- 1...Bg4
- 2.Qf1#
- 1...Bf5
- 2.Qf1#
- 1...Be6
- 2.Qf1#
- 1...Bc8
- 2.Qf1#
- 1...Bd7+!
- 1...Rxe2+
- 1.Ra2?
- 1...Rxe2
- 2.Qxe2#
- 1...Rh1
- 2.Qg3#
- 1...Rg2
- 2.Qf1#
- 1...Bf1
- 2.Qxf1#
- 1...Bg2
- 2.Qg3#
- 1...Bg4
- 2.Qf1#
- 1...Bf5
- 2.Qf1#
- 1...Be6
- 2.Qf1#
- 1...Bd7
- 2.Qf1#
- 1...Bc8
- 2.Qf1#
- 1...Rf2!
- 1...Rxe2
- 1.Rb2?
- 1...Rxe2
- 2.Qxe2#
- 1...Rh1
- 2.Qg3#
- 1...Rg2
- 2.Qf1#
- 1...Bf1
- 2.Qxf1#
- 1...Bg2
- 2.Qg3#
- 1...Bg4
- 2.Qf1#
- 1...Bf5
- 2.Qf1#
- 1...Be6
- 2.Qf1#
- 1...Bd7
- 2.Qf1#
- 1...Bc8
- 2.Qf1#
- 1...Rf2!
- 1...Rxe2
- 1.Rd2?
- threat
- 2.Rd1#
- 1...Rxe2
- 2.Qxe2#
- 1...Kxd2!
- threat
- 1.Qf4?
- 1...Rxe2
- 2.Rc1#
- 1...Rh1
- 2.Qg3#
- 2.Qh4#
- 1...Rg2
- 2.Qf1#
- 1...Bf1
- 2.Qxf1#
- 1...Bg2
- 2.Qg3#
- 1...Bg4
- 2.Qf1#
- 1...Bf5
- 2.Qf1#
- 1...Be6
- 2.Qf1#
- 1...Bd7
- 2.Qf1#
- 1...Bc8
- 2.Qf1#
- 1...Rf2!
- 1...Rxe2
- 1.Kg7?
- Keys
- 1.Ke7!
- 1...Rxe2+
- 2.Qxe2#
- 1...Rh1
- 2.Qg3#
- 1...Rf2
- 2.Qc3#
- 1...Rg2
- 2.Qf1#
- 1...Bf1
- 2.Qxf1#
- 1...Bg2
- 2.Qg3#
- 1...Bg4
- 2.Qf1#
- 1...Bf5
- 2.Qf1#
- 1...Be6
- 2.Qf1#
- 1...Bd7
- 2.Qf1#
- 1...Bc8
- 2.Qf1#
- 1...Rxe2+
- 1.Ke7!
Anticipated by 38137(1924)
This anticipates 51744(1971)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::QAB(C)
- R(b);OGATE,XB(B)::QAR1(C),XR(b)
- R(b);S_CUTB(c)::QAR1(C)
- B(c);N_GUARD::QAR1(C),XB(c)
- B(c);S_CUTR(b)::QAB(C)
- B(c);N_GUARD::QAR1(C)
- Tries
- Try
- K(D);S_FLIGHT
- Vars
- R(b);OGATE,XB(B)::QAR1(C),XR(b)
- R(b);N_GUARD::QAB(C)
- R(b);SBLOCK::QAB(C)
- B(c);N_GUARD::QAR1(C),XB(c)
- B(c);S_CUTR(b)::QAB(C)
- B(c);N_GUARD::QAR1(C)
- Refutation
- R(b);CHECK
- Try
- K(D);P-FLIGHT
- Vars
- R(b);CHECK,OGATE,XB(B)::QAR1(C),XR(b)
- R(b);N_GUARD::QAB(C)
- R(b);SBLOCK::QAB(C)
- R(b);S_CUTB(c)::QAR1(C)
- B(c);N_GUARD::QAR1(C),XB(c)
- B(c);S_CUTR(b)::QAB(C)
- B(c);N_GUARD::QAR1(C)
- Refutation
- B(c);CHECK
- Try
- R(A);
- Vars
- R(b);OGATE,XB(B)::QAR1(C),XR(b)
- R(b);N_GUARD::QAB(C)
- R(b);S_CUTB(c)::QAR1(C)
- B(c);N_GUARD::QAR1(C),XB(c)
- B(c);S_CUTR(b)::QAB(C)
- B(c);N_GUARD::QAR1(C)
- Refutation
- R(b);P_PINQ(C)
- Try
- R(A);
- Vars
- R(b);OGATE,XB(B)::QAR1(C),XR(b)
- R(b);N_GUARD::QAB(C)
- R(b);S_CUTB(c)::QAR1(C)
- B(c);N_GUARD::QAR1(C),XB(c)
- B(c);S_CUTR(b)::QAB(C)
- B(c);N_GUARD::QAR1(C)
- Refutation
- R(b);P_PINQ(C)
- Try
- R(A);
- Threat
- R1(A)
- Vars
- R(b);OGATE,XB(B)::QAR1(C),XR(b)
- Refutation
- K(a);S_FLIGHT,XR(A)
- Try
- Q(C);
- Vars
- R(b);SBLOCK,XB(B)::R(A)
- R(b);S_CUTB(c)::QAR1(C)
- B(c);N_GUARD::QAR1(C),XB(c)
- B(c);S_CUTR(b)::QAB(C)
- B(c);N_GUARD::QAR1(C)
- Refutation
- R(b);P_PINQ(C)
- Try
- Actual
- K(D);S_FLIGHT
- Vars
- R(b);CHECK,OGATE,XB(B)::QAR1(C),XR(b)
- R(b);N_GUARD::QAB(C)
- R(b);SBLOCK::QAB(C)
- R(b);S_CUTB(c)::QAR1(C)
- B(c);N_GUARD::QAR1(C),XB(c)
- B(c);S_CUTR(b)::QAB(C)
- B(c);N_GUARD::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).