MESON Chess Problem Database
Problem Display
PID: 221474 (8/2N1q3/B2npR2/b6p/3Nk3/2p1p1B1/7K/2nQ3b w - - 0 1)
Moen, Kabe
SuperProblem, 2019
#2
7 + 10
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qd8
- 2.Rxe6#
- 1...Qf8
- 2.Rxe6#
- 1...Qh7
- 2.Rxe6#
- 1...Sa2
- 2.Qd3#
- 1...Se2
- 2.Qd3#
- 1...Sb3
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc4
- 2.Bb7#
- 1...Sb5
- 2.Bb7#
- 1...Sf5
- 2.Bb7#
- 1...Sb7
- 2.Bxb7#
- 1...Sf7
- 2.Bb7#
- 1...Sc8
- 2.Bb7#
- 1...Se8
- 2.Bb7#
- 1...h4
- 2.Qg4#
- 1...Qd8
- Tries
- 1.Sc2?
- threat
- 2.Qxh1#
- 2.Qd4#
- 1...Bg2
- 2.Qd4#
- 1...Bf3
- 2.Qxf3#
- 2.Qd4#
- 1...Bb6
- 2.Qxh1#
- 1...Se2
- 2.Bd3#
- 2.Qxh1#
- 2.Qd3#
- 1...Sb3
- 2.Bd3#
- 2.Qxh1#
- 2.Qd3#
- 1...Sd3
- 2.Bxd3#
- 2.Qxh1#
- 2.Qxd3#
- 1...Sc4
- 2.Bb7#
- 2.Qd4#
- 1...Sb5
- 2.Bb7#
- 1...Sf5
- 2.Bb7#
- 2.Qxh1#
- 1...e5
- 2.Qxh1#
- 2.Qd5#
- 1...Qxf6!
- threat
- 1.Se2?
- threat
- 2.Qxh1#
- 2.Qd4#
- 1...Sxe2
- 2.Qd3#
- 1...Sf5
- 2.Bb7#
- 2.Qxh1#
- 1...Bg2
- 2.Qd4#
- 1...Bf3
- 2.Qd4#
- 1...Bb6
- 2.Sxc3#
- 2.Qxh1#
- 1...Sb3
- 2.Bd3#
- 2.Qc2#
- 2.Qxh1#
- 2.Qd3#
- 1...Sd3
- 2.Bxd3#
- 2.Qxh1#
- 2.Qxd3#
- 1...Sc4
- 2.Bb7#
- 2.Qd4#
- 1...Sb5
- 2.Bb7#
- 1...e5
- 2.Qxh1#
- 2.Qd5#
- 1...Qxf6!
- threat
- 1.Sb3?
- threat
- 2.Sc5#
- 2.Qxh1#
- 2.Qd4#
- 1...Qxc7
- 2.Qxh1#
- 2.Qd4#
- 1...Sxb3
- 2.Qd3#
- 1...e2
- 2.Qd4#
- 1...Bg2
- 2.Sc5#
- 2.Qd4#
- 1...Bf3
- 2.Sc5#
- 2.Qxf3#
- 2.Qd4#
- 1...Bb4
- 2.Qxh1#
- 2.Qd4#
- 1...Bb6
- 2.Qxh1#
- 1...Se2
- 2.Sc5#
- 2.Bd3#
- 2.Qc2#
- 2.Qxh1#
- 2.Qd3#
- 1...Sd3
- 2.Bxd3#
- 2.Qxh1#
- 2.Qxd3#
- 1...Sc4
- 2.Bb7#
- 2.Qd4#
- 1...Sb5
- 2.Bb7#
- 1...Sf5
- 2.Bb7#
- 2.Qxh1#
- 1...Sb7
- 2.Bxb7#
- 2.Qxh1#
- 2.Qd4#
- 1...Sf7
- 2.Bb7#
- 2.Qxh1#
- 2.Qd4#
- 1...Sc8
- 2.Bb7#
- 2.Qxh1#
- 2.Qd4#
- 1...Se8
- 2.Bb7#
- 2.Qxh1#
- 2.Qd4#
- 1...e5
- 2.Sc5#
- 2.Qxh1#
- 2.Qd5#
- 1...Qxf6!
- threat
- 1.Sf5?
- threat
- 2.Qxh1#
- 1...Qxf6
- 2.Sxd6#
- 1...Sxf5
- 2.Bb7#
- 1...exf5
- 2.Qd5#
- 1...Bf3
- 2.Qd4#
- 1...Sc4
- 2.Bb7#
- 1...Sb5
- 2.Bb7#
- 1...Bg2!
- threat
- 1.Sc6?
- threat
- 2.Rf4#
- 2.Qxh1#
- 2.Qd4#
- 1...e2
- 2.Qd4#
- 1...Qf8
- 2.Qxh1#
- 2.Qd4#
- 1...Qf7
- 2.Qxh1#
- 2.Qd4#
- 1...Bg2
- 2.Rf4#
- 2.Qd4#
- 1...Bf3
- 2.Rf4#
- 2.Qxf3#
- 2.Qd4#
- 1...Bb6
- 2.Rf4#
- 2.Qxh1#
- 1...Se2
- 2.Bd3#
- 2.Qc2#
- 2.Qxh1#
- 2.Qd3#
- 1...Sb3
- 2.Bd3#
- 2.Rf4#
- 2.Qc2#
- 2.Qxh1#
- 2.Qd3#
- 1...Sd3
- 2.Bxd3#
- 2.Qxh1#
- 2.Qxd3#
- 1...Sc4
- 2.Rf4#
- 2.Qd4#
- 1...Sb5
- 2.Rf4#
- 1...Sf5
- 2.Qxh1#
- 1...e5
- 2.Qxh1#
- 2.Qd5#
- 1...Qxf6!
- threat
- 1.Sdxe6?
- threat
- 2.Sc5#
- 2.Sg5#
- 2.Qxh1#
- 2.Qd4#
- 2.Qd5#
- 1...Qxf6
- 2.Qd5#
- 1...Qxc7
- 2.Sg5#
- 2.Qxh1#
- 2.Qd4#
- 1...Bxc7
- 2.Sc5#
- 2.Sg5#
- 2.Qxh1#
- 2.Qd4#
- 1...e2
- 2.Qd4#
- 1...Qg7
- 2.Sc5#
- 2.Qxh1#
- 2.Qd4#
- 2.Qd5#
- 1...Bg2
- 2.Sc5#
- 2.Sg5#
- 2.Qd4#
- 2.Qd5#
- 1...Bf3
- 2.Sc5#
- 2.Sg5#
- 2.Qxf3#
- 2.Qd4#
- 2.Qd5#
- 1...Bb4
- 2.Sg5#
- 2.Qxh1#
- 2.Qd4#
- 2.Qd5#
- 1...Bb6
- 2.Sg5#
- 2.Qxh1#
- 2.Qd5#
- 1...Se2
- 2.Sc5#
- 2.Sg5#
- 2.Bd3#
- 2.Qc2#
- 2.Qxh1#
- 2.Qd3#
- 2.Qd5#
- 1...Sb3
- 2.Sg5#
- 2.Bd3#
- 2.Qc2#
- 2.Qxh1#
- 2.Qd3#
- 2.Qd5#
- 1...Sd3
- 2.Bxd3#
- 2.Qxh1#
- 2.Qxd3#
- 1...Sc4
- 2.Sg5#
- 2.Bb7#
- 2.Qd4#
- 2.Qd5#
- 1...Sb5
- 2.Sg5#
- 2.Bb7#
- 2.Qd5#
- 1...Sf5
- 2.Sg5#
- 2.Bb7#
- 2.Qxh1#
- 2.Qd5#
- 1...Sb7
- 2.Sg5#
- 2.Bxb7#
- 2.Qxh1#
- 2.Qd4#
- 2.Qd5#
- 1...Sf7
- 2.Bb7#
- 2.Qxh1#
- 2.Qd4#
- 2.Qd5#
- 1...Sc8
- 2.Sg5#
- 2.Bb7#
- 2.Qxh1#
- 2.Qd4#
- 2.Qd5#
- 1...Se8
- 2.Sg5#
- 2.Bb7#
- 2.Qxh1#
- 2.Qd4#
- 2.Qd5#
- 1...Qxe6!
- threat
- 1.Qc2+?
- 1...Sd3
- 2.Qxd3#
- 1...Kxd4!
- 1...Sd3
- 1.Sc2?
- Keys
- 1.Sdb5!
- threat
- 2.Qd4#
- 1...Qxf6
- 2.Sxd6#
- 1...Sxb5
- 2.Bb7#
- 1...Bb6
- 2.Sxc3#
- 1...Se2
- 2.Qc2#
- 1...Sb3
- 2.Qc2#
- 1...Sd3
- 2.Qxh1#
- 1...Sf5
- 2.Bb7#
- 1...e5
- 2.Qd5#
- threat
- 1.Sdb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 10
- Sets
- Q(j);N_GUARD::R(F),XP(i)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- S(h);N_GUARD::B(E)
- S(h);N_GUARD::B(E),XS(h)
- P(g);N_GUARD::QAR2(A)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(b);::QAR1(A)
- B(f);::QAB(A),XB(b)
- S(h);N_GUARD::B(E)
- Refutation
- Q(j);XR(F)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD,XS(D)::QAB1(A)
- B(b);::QAR1(A)
- S(h);N_GUARD::B(E)
- Refutation
- Q(j);XR(F)
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- S(a);N_GUARD,XS(D)::QAB1(A)
- P(d);::QAR1(A)
- B(f);::QAB(A),XB(b)
- S(h);N_GUARD::B(E)
- Refutation
- Q(j);XR(F)
- Try
- S(D);
- Threat
- QAB(A),XB(b)
- Vars
- Q(j);N_GUARD,XR(F)::S(D),XS(h)
- S(h);N_GUARD,XS(D)::B(E)
- P(i);N_GUARD,XS(D)::QAB1(A)
- B(b);SBLOCK::QAR1(A)
- S(h);N_GUARD::B(E)
- Refutation
- B(b);
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- P(d);::QAR1(A)
- S(h);::R1(F)
- S(h);::QAB(A),XB(b)
- Refutation
- Q(j);XR(F)
- Try
- S(D);XP(i)
- Threat
- DUALS(5)
- Vars
- Q(j);XR(F)::QAB1(A)
- P(d);::QAR1(A)
- Refutation
- Q(j);XS(D)
- Try
- Q(A);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
- Refutation
- K(e);P-FLIGHT,XS(D)
- Try
- Actual
- S(D);
- Threat
- QAR1(A)
- Vars
- Q(j);N_GUARD,XR(F)::S(D),XS(h)
- S(h);N_GUARD,XS(D)::B(E)
- B(f);N_GUARD::S(D),XP(c)
- S(a);N_GUARD::QAB(A)
- S(a);SBLOCK::QAB(A),XB(b)
- S(h);N_GUARD::B(E)
- P(i);N_GUARD::QAB1(A)
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).