MESON Chess Problem Database
Problem Display
PID: 179931 (2N3nB/1n5R/1N2k3/2p5/2pp4/6p1/1r2B1K1/3QbR2 w - - 0 1)
Gross, Erwin
Die Schwalbe, 1964
#2
8 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Bxc4#
- 2.Bg4#
- 1...Rxe2+
- 2.Qxe2#
- 1...Rb3
- 2.Bxc4#
- 2.Bg4#
- 1...Rb4
- 2.Bg4#
- 1...Rb5
- 2.Bxc4#
- 2.Bg4#
- 1...Rxb6
- 2.Bxc4#
- 1...Bd2
- 2.Bxc4#
- 2.Bg4#
- 1...Bf2
- 2.Bg4#
- 1...Sf6
- 2.Re7#
- 1...Sh6
- 2.Rxh6#
- 2.Re7#
- 1...Se7
- 2.Rxe7#
- 1...Rb1
- Tries
- 1.Kh3?
- threat
- 2.Bxc4#
- 2.Bg4#
- 1...Rxe2
- 2.Qxe2#
- 1...Rxb6
- 2.Bxc4#
- 1...Bf2
- 2.Bg4#
- 1...Sf6
- 2.Re7#
- 1...Rc2
- 2.Bg4#
- 1...Rb4
- 2.Bg4#
- 1...Sa5
- 2.Bg4#
- 1...Sh6
- 2.Bxc4#
- 2.Rxh6#
- 2.Re7#
- 1...Se7
- 2.Rxe7#
- 1...c3
- 2.Bc4#
- 2.Bg4#
- 1...d3
- 2.Bg4#
- 1...Sd6!
- threat
- 1.Rf2?
- threat
- 2.Bxc4#
- 2.Bg4#
- 1...Rxe2
- 2.Qxe2#
- 1...Rxb6
- 2.Bxc4#
- 1...Bxf2
- 2.Bg4#
- 1...gxf2
- 2.Bg4#
- 1...Sf6
- 2.Re7#
- 1...Rc2
- 2.Bg4#
- 1...Rb4
- 2.Bg4#
- 1...Sa5
- 2.Bg4#
- 1...Sh6
- 2.Bxc4#
- 2.Rxh6#
- 2.Re7#
- 1...Se7
- 2.Rxe7#
- 1...c3
- 2.Bc4#
- 2.Bg4#
- 1...d3
- 2.Bg4#
- 1...Sd6!
- threat
- 1.Qa4?
- threat
- 2.Qd7#
- 2.Qxc4#
- 1...Bf2
- 2.Bg4#
- 2.Qd7#
- 1...Sf6
- 2.Re7#
- 1...Sd6
- 2.Qd7#
- 1...Rc2
- 2.Qd7#
- 1...Rb4
- 2.Bg4#
- 2.Qd7#
- 1...Rb5
- 2.Bxc4#
- 2.Bg4#
- 2.Qxc4#
- 1...Bb4
- 2.Qd7#
- 1...Sa5
- 2.Qd7#
- 1...Se7
- 2.Rxe7#
- 2.Qd7#
- 1...c3
- 2.Qd7#
- 2.Qc4#
- 1...Rxe2+!
- threat
- 1.Kh3?
- Keys
- 1.Rh5!
- threat
- 2.Re5#
- 1...Rxe2+
- 2.Qxe2#
- 1...Rxb6
- 2.Bg4#
- 1...Bf2
- 2.Bxc4#
- 1...Sf6
- 2.Rxf6#
- threat
- 1.Rh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- R(b);CHECK,OGATE,XB(C)::QAR(A),XR(b)
- R(b);N_PINB(C)::B(C)
- R(b);N_PINB(C),XS(E)::B(C),XP(d)
- B(a);N_PINB(C)::B(C)
- S(i);N_GUARD::R1(F)
- S(i);N_GUARD::R1(F),XS(i)
- Tries
- Try
- K(D);N_SPINB(C),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- R(b);OGATE,XB(C)::QAR(A),XR(b)
- R(b);XS(E)::B(C),XP(d)
- B(a);::B(C)
- S(i);N_GUARD::R1(F)
- R(b);::B(C)
- S(h);::B(C)
- S(i);N_GUARD::R1(F),XS(i)
- P(e);::B(C)
- Refutation
- S(h);
- Try
- R(B);N_SPINB(C)
- Threat
- DUALS(2)
- Vars
- R(b);OGATE,P_PINR(B),XB(C)::QAR(A),XR(b)
- R(b);XS(E)::B(C),XP(d)
- B(a);XR(B)::B(C)
- P(c);XR(B)::B(C)
- S(i);N_GUARD::R1(F)
- R(b);::B(C)
- S(h);::B(C)
- S(i);N_GUARD::R1(F),XS(i)
- P(e);::B(C)
- Refutation
- S(h);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(i);N_GUARD::R1(F)
- S(h);::QAB1(A)
- R(b);::QAB1(A)
- B(a);::QAB1(A)
- Refutation
- R(b);CHECK,XB(C)
- Try
- Actual
- R(F);
- Threat
- R1(F)
- Vars
- R(b);CHECK,OGATE,XB(C)::QAR(A),XR(b)
- R(b);N_PINB(C),XS(E)::B(C)
- B(a);N_PINB(C)::B(C),XP(d)
- S(i);N_GUARD::R1(B),XS(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).