MESON Chess Problem Database
Problem Display
PID: 10693 (N1b1Q3/2PnP2K/P1kN2RP/P7/PP2r3/2B1p3/6rp/2R4B w - - 0 1)
Mansfield, Comins
3rd Prize, Ianovcic-70 JT, 1967
#2
15 + 7
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Bxe4#
- 1...Ra2
- 2.Bxe4#
- 1...Rb2
- 2.Bxe4#
- 1...Rc2
- 2.Bxe4#
- 1...Re2
- 2.Bxe4#
- 1...Rf2
- 2.Bxe4#
- 1...Rg3
- 2.Bxe4#
- 1...Rg1
- Tries
- 1.Sc4+?
- 1...Rxg6
- 2.Bxe4#
- 1...Re6
- 2.Bxg2#
- 1...Kd5!
- 1...Rxg6
- 1.Sb5+?
- 1...Rxg6
- 2.Bxe4#
- 1...Re6
- 2.Bxg2#
- 1...Kd5!
- 1...Rxg6
- 1.Sf5+?
- 1...Rxg6
- 2.Bxe4#
- 1...Re6
- 2.Bxg2#
- 1...Kd5!
- 1...Rxg6
- 1.Sb7+?
- 1...Rxg6
- 2.Bxe4#
- 1...Re6
- 2.Bxg2#
- 1...Kd5!
- 1...Rxg6
- 1.Sf7+?
- 1...Rxg6
- 2.Bxe4#
- 1...Re6
- 2.Bxg2#
- 1...Kd5!
- 1...Rxg6
- 1.Sxc8+?
- 1...Rxg6
- 2.Bxe4#
- 1...Re6
- 2.Bxg2#
- 1...Kd5!
- 1...Rxg6
- 1.Ba1+?
- 1...Rc2
- 2.Bxe4#
- 1...Rc4
- 2.Bxg2#
- 1...Kd5!
- 1...Rc2
- 1.Be1+?
- 1...Rc2
- 2.Bxe4#
- 1...Rc4
- 2.Bxg2#
- 1...Kd5!
- 1...Rc2
- 1.Bb2+?
- 1...Rc2
- 2.Bxe4#
- 1...Rc4
- 2.Bxg2#
- 1...Kd5!
- 1...Rc2
- 1.Bd2+?
- 1...Rc4
- 2.Bxg2#
- 1...Kd5!
- 1...Rc4
- 1.Bd4+?
- 1...Rc2
- 2.Bxe4#
- 1...Kd5!
- 1...Rc2
- 1.Be5+?
- 1...Rc2
- 2.Bxe4#
- 1...Rc4
- 2.Bxg2#
- 1...Kd5!
- 1...Rc2
- 1.Bg7+?
- 1...Rc2
- 2.Bxe4#
- 1...Rc4
- 2.Bxg2#
- 1...Kd5!
- 1...Rc2
- 1.Bh8+?
- 1...Rc2
- 2.Bxe4#
- 1...Rc4
- 2.Bxg2#
- 1...Kd5!
- 1...Rc2
- 1.Sc4+?
- Keys
- 1.Sb6!
- 1...Rxe7+
- 2.Bg7#
- 1...Kxc7
- 2.Qxc8#
- 1...Rxg6
- 2.Be5#
- 1...Rxb4
- 2.Bxb4#
- 1...Bxa6
- 2.Qxd7#
- 1...Re6
- 2.Be5#
- 1...Rg1
- 2.Be1#
- 1...Ra2
- 2.Sb5#
- 2.Bb2#
- 1...Rb2
- 2.Sb5#
- 2.Bxb2#
- 1...Rc2
- 2.Sb5#
- 1...Rd2
- 2.Bxd2#
- 1...Re2
- 2.Sb5#
- 2.Bd2#
- 1...Rf2
- 2.Bd2#
- 1...Rg3
- 2.Ba1#
- 2.Be1#
- 2.Bb2#
- 2.Bd2#
- 2.Bd4#
- 2.Be5#
- 2.Bg7#
- 2.Bh8#
- 1...Rgg4
- 2.Ba1#
- 2.Be1#
- 2.Bb2#
- 2.Bd2#
- 2.Bd4#
- 2.Be5#
- 2.Bg7#
- 2.Bh8#
- 1...Rg5
- 2.Be5#
- 1...Rc4
- 2.Sb5#
- 1...Rd4
- 2.Bxd4#
- 1...Rf4
- 2.Bd4#
- 1...Reg4
- 2.Bd4#
- 1...Rh4
- 2.Sb5#
- 2.Bd4#
- 1...Re5
- 2.Bxe5#
- 1...Bb7
- 2.Qxd7#
- 1...e2
- 2.Bd4#
- 1...Rxe7+
- 1.Sb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 15
- REMOVED MATES = 4
- Sets
- R(a);OGATE,P_SPINR(d)::B(B),XR(d)
- Tries
- Try
- S(H);CHECK
- Vars
- R(a);OGATE,P_SPINR(d),XR(I)::B(B),XR(d)
- R(d);P_SPINR(a)::B(B),XR(a)
- Refutation
- K(e);N_SPINS(f),S_FLIGHT
- Try
- S(H);CHECK
- Vars
- R(a);OGATE,P_SPINR(d),XR(I)::B(B),XR(d)
- R(d);P_SPINR(a)::B(B),XR(a)
- Refutation
- K(e);N_SPINS(f),S_FLIGHT
- Try
- S(H);CHECK
- Vars
- R(a);OGATE,P_SPINR(d),XR(I)::B(B),XR(d)
- R(d);P_SPINR(a)::B(B),XR(a)
- Refutation
- K(e);N_SPINS(f),S_FLIGHT
- Try
- S(H);CHECK
- Vars
- R(a);OGATE,P_SPINR(d),XR(I)::B(B),XR(d)
- R(d);P_SPINR(a)::B(B),XR(a)
- Refutation
- K(e);N_SPINS(f),S_FLIGHT
- Try
- S(H);CHECK
- Vars
- R(a);OGATE,P_SPINR(d),XR(I)::B(B),XR(d)
- R(d);P_SPINR(a)::B(B),XR(a)
- Refutation
- K(e);N_SPINS(f),S_FLIGHT
- Try
- S(H);CHECK,XB(g)
- Vars
- R(a);OGATE,P_SPINR(d),XR(I)::B(B),XR(d)
- R(d);P_SPINR(a)::B(B),XR(a)
- Refutation
- K(e);N_SPINS(f),S_FLIGHT
- Try
- B(C);CHECK
- Vars
- R(a);OGATE,P_SPINR(a)::B(B),XR(d)
- R(d);P_SPINR(a)::B(B),XR(a)
- Refutation
- K(e);N_SPINS(f),S_FLIGHT
- Try
- B(C);CHECK
- Vars
- R(a);OGATE,P_SPINR(a)::B(B),XR(d)
- R(d);P_SPINR(a)::B(B),XR(a)
- Refutation
- K(e);N_SPINS(f),S_FLIGHT
- Try
- B(C);CHECK
- Vars
- R(a);OGATE,P_SPINR(a)::B(B),XR(d)
- R(d);P_SPINR(a)::B(B),XR(a)
- Refutation
- K(e);N_SPINS(f),S_FLIGHT
- Try
- B(C);CHECK
- Vars
- R(d);P_SPINR(a)::B(B),XR(a)
- Refutation
- K(e);N_SPINS(f),S_FLIGHT
- Try
- B(C);CHECK
- Vars
- R(a);OGATE,P_SPINR(a)::B(B),XR(d)
- Refutation
- K(e);N_SPINS(f),S_FLIGHT
- Try
- B(C);CHECK
- Vars
- R(a);OGATE,P_SPINR(a)::B(B),XR(d)
- R(d);P_SPINR(a)::B(B),XR(a)
- Refutation
- K(e);N_SPINS(f),S_FLIGHT
- Try
- B(C);CHECK
- Vars
- R(a);OGATE,P_SPINR(a)::B(B),XR(d)
- R(d);P_SPINR(a)::B(B),XR(a)
- Refutation
- K(e);N_SPINS(f),S_FLIGHT
- Try
- B(C);CHECK
- Vars
- R(a);OGATE,P_SPINR(a)::B(B),XR(d)
- R(d);P_SPINR(a)::B(B),XR(a)
- Refutation
- K(e);N_SPINS(f),S_FLIGHT
- Try
- Actual
- S(N);
- Vars
- R(d);CHECK,N_GUARD,P_SPINR(a),XP(L)::R(A)+B(C)
- K(e);N_SPINS(f),OGATEB,P-FLIGHT,XP(K)::QAR1(O),XB(g)
- R(a);N_GUARD,P_SPINR(d),XR(I)::R(A)+B(C)
- R(d);OGATE,P_SPINR(a),XP(E)::R(A)+B(C),XR(d)
- B(g);N_GUARD,XP(G)::QAB1(O),XS(f)
- R(d);N_GUARD,P_SPINR(a)::R(A)+B(C)
- R(a);N_GUARD,P_SPINR(d)::R(A)+B(C)
- R(a);N_GUARD,P_SPINR(d)::R(I)+S(H)
- R(a);P_SPINR(d)::R(A)+B(C),XR(a)
- R(a);P_SPINR(d)::R(A)+B(C)
- R(d);N_GUARD,P_SPINR(a)::R(I)+S(H)
- R(d);P_SPINR(a)::R(A)+B(C),XR(d)
- R(d);P_SPINR(a)::R(A)+B(C)
- R(d);N_GUARD,P_SPINR(a)::R(A)+B(C),XR(d)
- B(g);N_GUARD::QAB1(O),XS(f)
- P(c);S_CUTR(a)::R(A)+B(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).