MESON Chess Problem Database
Problem Display
PID: 170216 (8/8/4n3/8/1p5R/1Rp1pkPp/5p1K/4BQ2 w - - 0 1)
Jaeger, Peter R
Tages-Anzeiger, 1992
#2
6 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sd4
- 2.Rf4#
- 1...Sf4
- 2.Rxf4#
- 1...Sc5
- 2.Rf4#
- 1...Sg5
- 2.Rf4#
- 1...Sc7
- 2.Rf4#
- 1...Sg7
- 2.Rf4#
- 1...Sd8
- 2.Rf4#
- 1...Sf8
- 2.Rf4#
- 1...c2
- 2.Qxf2#
- 1...e2
- 2.Qxf2#
- 1...Sd4
- Tries
- 1.Kxh3?
- 1...Sf4+
- 2.Rxf4#
- 1...e2
- 2.Qxf2#
- 1...Sd4
- 2.Rf4#
- 1...Sc5
- 2.Rf4#
- 1...Sc7
- 2.Rf4#
- 1...Sg7
- 2.Rf4#
- 1...Sd8
- 2.Rf4#
- 1...Sf8
- 2.Rf4#
- 1...c2
- 2.Qxf2#
- 1...Sg5+!
- 1...Sf4+
- 1.Bxf2?
- threat
- 2.Be1#
- 2.Bg1#
- 1...exf2
- 2.Qd3#
- 1...Sf4
- 2.Rxf4#
- 1...e2!
- threat
- 1.Bxc3?
- 1...Sf4
- 2.Rxf4#
- 1...e2
- 2.Ba1#
- 2.Be1#
- 2.Bb2#
- 2.Bd2#
- 2.Bxb4#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 2.Bg7#
- 2.Bh8#
- 1...Sd4
- 2.Rf4#
- 1...Sc5
- 2.Rf4#
- 1...Sg5
- 2.Rf4#
- 1...Sc7
- 2.Rf4#
- 1...Sg7
- 2.Rf4#
- 1...Sd8
- 2.Rf4#
- 1...Sf8
- 2.Rf4#
- 1...bxc3!
- 1...Sf4
- 1.Rxc3?
- threat
- 2.Qxf2#
- 1...Sf4
- 2.Rxf4#
- 1...bxc3!
- threat
- 1.Rbxb4?
- 1...e2
- 2.Qxf2#
- 1...Sd4
- 2.Rf4#
- 1...Sf4
- 2.Rbxf4#
- 2.Rhxf4#
- 1...Sc5
- 2.Rbf4#
- 2.Rhf4#
- 1...Sg5
- 2.Rbf4#
- 2.Rhf4#
- 1...Sc7
- 2.Rbf4#
- 2.Rhf4#
- 1...Sg7
- 2.Rbf4#
- 2.Rhf4#
- 1...Sd8
- 2.Rbf4#
- 2.Rhf4#
- 1...Sf8
- 2.Rbf4#
- 2.Rhf4#
- 1...c2!
- 1...e2
- 1.Rhxb4?
- 1...Sf4
- 2.Rxf4#
- 1...e2
- 2.Rxc3#
- 2.Qxf2#
- 1...c2
- 2.Qxf2#
- 1...Sc5
- 2.Rf4#
- 1...Sg5
- 2.Rf4#
- 1...Sc7
- 2.Rf4#
- 1...Sg7
- 2.Rf4#
- 1...Sd8
- 2.Rf4#
- 1...Sf8
- 2.Rf4#
- 1...Sd4!
- 1...Sf4
- 1.Rc4?
- 1...Sf4
- 2.Rxf4#
- 1...e2
- 2.Qxf2#
- 1...c2
- 2.Qxf2#
- 1...Sc5
- 2.Rf4#
- 1...Sg5
- 2.Rf4#
- 1...Sc7
- 2.Rf4#
- 1...Sg7
- 2.Rf4#
- 1...Sd8
- 2.Rf4#
- 1...Sf8
- 2.Rf4#
- 1...Sd4!
- 1...Sf4
- 1.Rd4?
- 1...Sf4
- 2.Rxf4#
- 1...e2
- 2.Qxf2#
- 1...c2
- 2.Qxf2#
- 1...Sc5
- 2.Rf4#
- 1...Sg5
- 2.Rf4#
- 1...Sc7
- 2.Rf4#
- 1...Sg7
- 2.Rf4#
- 1...Sd8
- 2.Rf4#
- 1...Sf8
- 2.Rf4#
- 1...Sxd4!
- 1...Sf4
- 1.Re4?
- 1...Sf4
- 2.Rxf4#
- 1...c2
- 2.Rbxe3#
- 1...Sd4
- 2.Rf4#
- 1...Sc5
- 2.Rf4#
- 1...Sg5
- 2.Rf4#
- 1...Sc7
- 2.Rf4#
- 1...Sg7
- 2.Rf4#
- 1...Sd8
- 2.Rf4#
- 1...Sf8
- 2.Rf4#
- 1...e2
- 2.Qxe2#
- 2.Qh1#
- 1...Kxe4!
- 1...Sf4
- 1.Kxh3?
- Keys
- 1.Bd2!
- 1...cxd2
- 2.Qd1#
- 1...exd2
- 2.Qd3#
- 1...Sf4
- 2.Rxf4#
- 1...Sd4
- 2.Rf4#
- 1...Sc5
- 2.Rf4#
- 1...Sg5
- 2.Rf4#
- 1...Sc7
- 2.Rf4#
- 1...Sg7
- 2.Rf4#
- 1...Sd8
- 2.Rf4#
- 1...Sf8
- 2.Rf4#
- 1...c2
- 2.Rxe3#
- 1...e2
- 2.Qh1#
- 1...cxd2
- 1.Bd2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(g);N_GUARD::R1(F)
- S(g);N_GUARD::R1(F),XS(g)
- P(b);S_CUTP(c)::QAR1(B),XP(a)
- P(c);N_GUARD::QAR1(B),XP(a)
- Tries
- Try
- K(C);P-FLIGHT,XP(e)
- Vars
- S(g);CHECK,N_GUARD::R1(F),XS(g)
- P(c);N_GUARD::QAR1(B),XP(a)
- S(g);N_GUARD::R1(F)
- P(b);S_CUTP(c)::QAR1(B),XP(a)
- Refutation
- S(g);CHECK
- Try
- B(A);XP(a)
- Threat
- DUALS(2)
- Vars
- P(c);OGATEB,P_SPINP(c),SBLOCK,XB(A)::QAR2(B)
- S(g);N_GUARD::R1(F),XS(g)
- Refutation
- P(c);P_SPINP(b)
- Try
- B(A);XP(b)
- Vars
- S(g);N_GUARD::R1(F),XS(g)
- S(g);N_GUARD::R1(F)
- Refutation
- P(f);XB(A)
- Try
- R(D);XP(b)
- Threat
- QAR1(B),XP(a)
- Vars
- S(g);N_GUARD::R1(F),XS(g)
- Refutation
- P(f);XR(D)
- Try
- R(D);XP(f)
- Vars
- P(c);N_GUARD::QAR1(B),XP(a)
- S(g);N_GUARD::R1(F)
- Refutation
- P(b);
- Try
- R(F);XP(f)
- Vars
- S(g);N_GUARD::R1(F),XS(g)
- P(b);S_CUTP(c)::QAR1(B),XP(a)
- S(g);N_GUARD::R1(F)
- Refutation
- S(g);
- Try
- R(F);
- Vars
- S(g);N_GUARD::R1(F),XS(g)
- P(c);N_GUARD::QAR1(B),XP(a)
- P(b);S_CUTP(c)::QAR1(B),XP(a)
- S(g);N_GUARD::R1(F)
- Refutation
- S(g);
- Try
- R(F);
- Vars
- S(g);N_GUARD::R1(F),XS(g)
- P(c);N_GUARD::QAR1(B),XP(a)
- P(b);S_CUTP(c)::QAR1(B),XP(a)
- S(g);N_GUARD::R1(F)
- Refutation
- S(g);XR(F)
- Try
- R(F);
- Vars
- S(g);N_GUARD::R1(F),XS(g)
- P(b);OGATE::R1(D),XP(c)
- S(g);N_GUARD::R1(F)
- Refutation
- K(d);N_SPINP(a),S_FLIGHT,XR(F)
- Try
- Actual
- B(A);
- Vars
- P(b);S_CUTP(c),XB(A)::QAB(B)
- P(c);OGATEB,XB(A)::QAR2(B)
- S(g);N_GUARD::R1(F),XS(g)
- S(g);N_GUARD::R1(F)
- P(b);OGATE::R1(D),XP(c)
- P(c);SBLOCK::QAB(B)
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).