MESON Chess Problem Database
Problem Display
PID: 287265 (b1K4b/3QNNn1/p3nP1p/P6p/2p1k2p/p1P2R1P/R3p1P1/4r3 w - - 0 1)
Dent, Robert
Grantham Journal, 1925
(First published on Sat Jan 3 1925)
#2
11 + 13
| 15239 | Valois Notebooks | 2026 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rxe2#
- 1...Rb1
- 2.Rxe2#
- 1...Rc1
- 2.Rxe2#
- 1...Rd1
- 2.Rxe2#
- 1...Rf1
- 2.Rxe2#
- 1...Rg1
- 2.Rxe2#
- 1...Rh1
- 2.Rxe2#
- 1...Bd5
- 2.Qxd5#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7+
- 2.Qxb7#
- 1...Sd4
- 2.Qxd4#
- 1...Sf4
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...Sf5
- 2.Qxe6#
- 1...Se8
- 2.Qxe6#
- 1...Ra1
- Tries
- 1.Kb8?
- 1...Ra1
- 2.Rxe2#
- 1...Rc1
- 2.Rxe2#
- 1...Rd1
- 2.Rxe2#
- 1...Rf1
- 2.Rxe2#
- 1...Rg1
- 2.Rxe2#
- 1...Rh1
- 2.Rxe2#
- 1...Bd5
- 2.Qxd5#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Sd4
- 2.Qxd4#
- 1...Sf4
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...Sf5
- 2.Qxe6#
- 1...Se8
- 2.Qxe6#
- 1...Rb1+!
- 1...Ra1
- 1.Sg6?
- 1...Bb7+
- 2.Qxb7#
- 1...Ra1
- 2.Rxe2#
- 1...Rb1
- 2.Rxe2#
- 1...Rc1
- 2.Rxe2#
- 1...Rd1
- 2.Rxe2#
- 1...Rf1
- 2.Rxe2#
- 1...Rg1
- 2.Rxe2#
- 1...Rh1
- 2.Rxe2#
- 1...Bd5
- 2.Sd6#
- 1...Bc6
- 2.Qxc6#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...Sf5
- 2.Qxe6#
- 1...Se8
- 2.Qxe6#
- 1...Sf4!
- 1...Bb7+
- 1.Sg5+?
- 1...Ke5
- 2.Sg6#
- 1...Sxg5
- 2.Qd4#
- 1...hxg5!
- 1...Ke5
- 1.Rc2?
- 1...Bb7+
- 2.Qxb7#
- 1...Sf4
- 2.Qd4#
- 1...Ra1
- 2.Rxe2#
- 1...Rb1
- 2.Rxe2#
- 1...Rc1
- 2.Rxe2#
- 1...Rd1
- 2.Rxe2#
- 1...Rf1
- 2.Rxe2#
- 1...Rg1
- 2.Rxe2#
- 1...Rh1
- 2.Rxe2#
- 1...Bd5
- 2.Qxd5#
- 1...Bc6
- 2.Qxc6#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...Sf5
- 2.Qxe6#
- 1...Se8
- 2.Qxe6#
- 1...a2!
- 1...Bb7+
- 1.Rd2?
- 1...Bb7+
- 2.Qxb7#
- 1...Sf4
- 2.Rd4#
- 2.Qd4#
- 1...Ra1
- 2.Rxe2#
- 1...Rb1
- 2.Rxe2#
- 1...Rc1
- 2.Rxe2#
- 1...Rd1
- 2.Rxe2#
- 1...Rf1
- 2.Rxe2#
- 1...Rg1
- 2.Rxe2#
- 1...Rh1
- 2.Rxe2#
- 1...Bd5
- 2.Qxd5#
- 1...Bc6
- 2.Qxc6#
- 1...Sd4
- 2.Rxd4#
- 2.Qxd4#
- 1...Sc5
- 2.Rd4#
- 2.Qd4#
- 1...Sg5
- 2.Rd4#
- 2.Qd4#
- 1...Sc7
- 2.Rd4#
- 2.Qd4#
- 1...Sd8
- 2.Rd4#
- 2.Qd4#
- 1...Sf8
- 2.Rd4#
- 2.Qd4#
- 1...Sf5
- 2.Qxe6#
- 1...Se8
- 2.Qxe6#
- 1...a2!
- 1...Bb7+
- 1.Rf4+?
- 1...Ke3
- 2.Qd2#
- 1...Sxf4
- 2.Qd4#
- 1...Kxf4!
- 1...Ke3
- 1.Qb5?
- threat
- 2.Sd6#
- 2.Qe5#
- 1...Bb7+
- 2.Qxb7#
- 1...Rd1
- 2.Rxe2#
- 2.Qe5#
- 1...Bd5
- 2.Qxd5#
- 1...Sc5
- 2.Qxc4#
- 1...Sf5
- 2.Qe5#
- 2.Qxf5#
- 1...Se8
- 2.Qe5#
- 2.Qf5#
- 1...axb5!
- threat
- 1.Qd2?
- threat
- 2.Qe3#
- 2.Qc2#
- 1...Sf4
- 2.Re3#
- 2.Rxf4#
- 2.Qe3#
- 2.Qxf4#
- 2.Qd4#
- 1...Rc1
- 2.Qe3#
- 2.Qxe2#
- 1...Rd1
- 2.Qe3#
- 2.Qxe2#
- 1...Sd4
- 2.Rf4#
- 2.Qe3#
- 2.Qf4#
- 2.Qxd4#
- 1...Sc5
- 2.Rf4#
- 2.Qe3#
- 2.Qf4#
- 2.Qd4#
- 1...Sf5
- 2.Qc2#
- 1...Bb7+!
- threat
- 1.Qa7?
- threat
- 2.Qe3#
- 2.Qxa8#
- 1...Bb7+
- 2.Qxb7#
- 1...Sf4
- 2.Re3#
- 2.Qe3#
- 2.Qd4#
- 1...Rb1
- 2.Rxe2#
- 2.Qe3#
- 1...Rd1
- 2.Rxe2#
- 2.Qe3#
- 1...Bd5
- 2.Qe3#
- 1...Bc6
- 2.Qe3#
- 1...Sd4
- 2.Qxd4#
- 1...Sc7
- 2.Qe3#
- 2.Qd4#
- 1...Sd8
- 2.Qe3#
- 2.Qd4#
- 1...Sf5
- 2.Qxa8#
- 1...Sc5!
- threat
- 1.Qc7?
- threat
- 2.Qe5#
- 1...Bb7+
- 2.Qxb7#
- 1...Sxc7!
- threat
- 1.fxg7?
- threat
- 2.Qxe6#
- 1...Bb7+
- 2.Qxb7#
- 1...Sxg7
- 2.Qd4#
- 1...Sf4
- 2.Qf5#
- 2.Qd4#
- 1...Bd5
- 2.Qxd5#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qf5#
- 2.Qd4#
- 1...Sg5
- 2.Qf5#
- 2.Qd4#
- 1...Sc7
- 2.Qf5#
- 2.Qd4#
- 1...Sd8
- 2.Qf5#
- 2.Qd4#
- 1...Sf8
- 2.Qf5#
- 2.Qd4#
- 1...Bxg7!
- threat
- 1.Kb8?
- Keys
- 1.Sf5!
- 1...Bb7+
- 2.Qxb7#
- 1...Sxf5
- 2.Qxe6#
- 1...Ra1
- 2.Rxe2#
- 1...Rb1
- 2.Rxe2#
- 1...Rc1
- 2.Rxe2#
- 1...Rd1
- 2.Rxe2#
- 1...Rf1
- 2.Rxe2#
- 1...Rg1
- 2.Rxe2#
- 1...Rh1
- 2.Rxe2#
- 1...Bd5
- 2.S5d6#
- 1...Bc6
- 2.Qxc6#
- 1...Sd4
- 2.Qxd4#
- 1...Sf4
- 2.Re3#
- 1...Sc5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...Se8
- 2.Qxe6#
- 1...Bb7+
- 1.Sf5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::R(A),XP(b)
- B(l);N_GUARD::QAB1(H),XB(l)
- B(l);N_GUARD::QAB(H),XB(l)
- B(l);CHECK,N_GUARD::QAB(H),XB(l)
- S(i);N_GUARD::QAR1(H),XS(i)
- S(i);N_GUARD::QAR1(H)
- S(k);N_GUARD::QAR2(H),XS(i)
- Tries
- Try
- K(K);P-FLIGHT
- Vars
- R(a);N_GUARD::R(A),XP(b)
- B(l);N_GUARD::QAB1(H),XB(l)
- B(l);N_GUARD::QAB(H),XB(l)
- S(i);N_GUARD::QAR1(H),XS(i)
- S(i);N_GUARD::QAR1(H)
- S(k);N_GUARD::QAR2(H),XS(i)
- Refutation
- R(a);CHECK
- Try
- S(I);
- Vars
- B(l);CHECK,N_GUARD::QAB(H),XB(l)
- R(a);N_GUARD::R(A),XP(b)
- B(l);SBLOCK::S(J)
- B(l);N_GUARD::QAB(H),XB(l)
- S(i);N_GUARD::QAR1(H),XS(i)
- S(i);N_GUARD::QAR1(H)
- S(k);N_GUARD::QAR2(H),XS(i)
- Refutation
- S(i);
- Try
- S(J);CHECK
- Vars
- K(e);P-FLIGHT,S_CUTP(j),S_CUTS(i)::S(I)
- S(i);XS(J)::QAR1(H)
- Refutation
- P(j);XS(J)
- Try
- R(A);
- Vars
- B(l);CHECK,N_GUARD::QAB(H),XB(l)
- S(i);N_GUARD::QAR1(H)
- R(a);N_GUARD::R(A),XP(b)
- B(l);N_GUARD::QAB1(H),XB(l)
- B(l);N_GUARD::QAB(H),XB(l)
- S(i);N_GUARD::QAR1(H),XS(i)
- S(k);N_GUARD::QAR2(H),XS(i)
- Refutation
- P(c);
- Try
- R(A);
- Vars
- B(l);CHECK,N_GUARD::QAB(H),XB(l)
- R(a);N_GUARD::R(A),XP(b)
- B(l);N_GUARD::QAB1(H),XB(l)
- B(l);N_GUARD::QAB(H),XB(l)
- S(k);N_GUARD::QAR2(H),XS(i)
- Refutation
- P(c);
- Try
- R(D);CHECK
- Vars
- K(e);P-FLIGHT,S_CUTS(i)::QAB1(H)
- S(i);SBLOCK,XR(D)::QAR1(H)
- Refutation
- K(e);P-FLIGHT,XR(D)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- B(l);CHECK,N_GUARD::QAB(H),XB(l)
- B(l);N_GUARD::QAB1(H),XB(l)
- S(i);N_GUARD::QAR2(H),XP(d)
- Refutation
- P(h);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- S(k);::QAB(H)
- Refutation
- B(l);CHECK
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- B(l);CHECK,N_GUARD::QAB(H),XB(l)
- B(l);::QAR1(H)
- S(i);N_GUARD::QAR1(H),XS(i)
- S(k);::QAB(H),XB(l)
- Refutation
- S(i);
- Try
- Q(H);
- Threat
- QAR1(H)
- Vars
- B(l);CHECK,N_GUARD::QAB(H),XB(l)
- Refutation
- S(i);XQ(H)
- Try
- P(G);XS(k)
- Threat
- QAR2(H),XS(i)
- Vars
- B(l);CHECK,N_GUARD::QAB(H),XB(l)
- S(i);N_GUARD,XP(G)::QAR1(H)
- B(l);N_GUARD::QAB1(H),XB(l)
- S(i);N_GUARD::QAR1(H),XS(i)
- Refutation
- B(m);XP(G)
- Try
- Actual
- S(I);
- Vars
- B(l);CHECK,N_GUARD::QAB(H),XB(l)
- S(k);N_GUARD,XS(I)::QAR2(H),XS(i)
- R(a);N_GUARD::R(A),XP(b)
- B(l);SBLOCK::S(I)
- B(l);N_GUARD::QAB(H),XB(l)
- S(i);N_GUARD::QAR1(H),XS(i)
- S(i);SBLOCK::R1(D)
- S(i);N_GUARD::QAR1(H)
- S(k);N_GUARD::QAR2(H),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).