MESON Chess Problem Database
Problem Display
PID: 238735 (3R4/4K2p/b4p2/p3p1n1/QBk3B1/R7/8/b3r3 w - - 0 1)
Ellerman, Arnoldo
L'Italia Scacchistica, 1964
#2
6 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Be2#
- 1...Rc1
- 2.Be2#
- 1...Rf1
- 2.Be2#
- 1...Rg1
- 2.Be2#
- 1...Rh1
- 2.Be2#
- 1...Re2
- 2.Bxe2#
- 1...Bc3
- 2.Rxc3#
- 1...Bb5
- 2.Qb3#
- 1...Sf3
- 2.Be6#
- 1...Sh3
- 2.Be6#
- 1...Se4
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sf7
- 2.Be6#
- 1...axb4
- 2.Qc6#
- 1...Rb1
- Tries
- 1.Ke8?
- threat
- 2.Be7#
- 2.Bf8#
- 1...axb4
- 2.Qc6#
- 1...Rb1
- 2.Be2#
- 1...Bc3
- 2.Rxc3#
- 1...Bb5+!
- threat
- 1.Rb3?
- threat
- 2.Ba3#
- 1...axb4
- 2.Qxb4#
- 1...Bc3
- 2.Rxc3#
- 1...Bb5!
- threat
- 1.Re3?
- threat
- 2.Ba3#
- 1...axb4
- 2.Qc6#
- 1...Rb1
- 2.Be2#
- 1...Bc3
- 2.Rxc3#
- 1...Bb5
- 2.Qb3#
- 1...Rxe3!
- threat
- 1.Rg3?
- threat
- 2.Ba3#
- 1...axb4
- 2.Qc6#
- 1...Rb1
- 2.Be2#
- 1...Bc3
- 2.Rxc3#
- 1...Bb5
- 2.Qb3#
- 1...Sf3
- 2.Be6#
- 1...Re3!
- threat
- 1.Rh3?
- threat
- 2.Ba3#
- 1...Sxh3
- 2.Be6#
- 1...axb4
- 2.Qc6#
- 1...Rb1
- 2.Be2#
- 1...Bc3
- 2.Rxc3#
- 1...Bb5
- 2.Qb3#
- 1...Sf3
- 2.Be6#
- 1...Re3!
- threat
- 1.Rd2?
- threat
- 2.Bd6#
- 1...axb4
- 2.Qc6#
- 1...Rb1
- 2.Be2#
- 1...Bc3
- 2.Rxc3#
- 1...Bb5
- 2.Qb3#
- 1...Bd4!
- threat
- 1.Ke8?
- Keys
- 1.Kf8!
- threat
- 2.Be7#
- 1...Se6+
- 2.Bxe6#
- 1...axb4
- 2.Qc6#
- 1...Rb1
- 2.Be2#
- 1...Bc3
- 2.Rxc3#
- 1...Bb5
- 2.Qb3#
- threat
- 1.Kf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- R(b);N_GUARD::B(D)
- R(b);N_GUARD::B(D),XR(b)
- B(a);N_GUARD::R1(A),XB(a)
- B(g);SBLOCK::QAB1(B)
- S(f);N_GUARD::B(D)
- S(f);N_GUARD::B(D),XS(f)
- P(d);P_SPINP(d),SBLOCK,XB(C)::QAR2(B)
- Tries
- Try
- K(E);P-FLIGHT
- Threat
- DUALS(2)
- Vars
- P(d);P_SPINP(d),SBLOCK,XB(C)::QAR2(B)
- R(b);N_GUARD::B(D)
- B(a);N_GUARD::R1(A),XB(a)
- Refutation
- B(g);CHECK
- Try
- R(A);
- Threat
- QAR(B)+B(C)
- Vars
- P(d);OGATE,P_SPINP(d),XB(C)::QAR1(B),XP(d)
- B(a);N_GUARD::R1(A),XB(a)
- Refutation
- B(g);
- Try
- R(A);
- Threat
- QAR(B)+B(C)
- Vars
- P(d);P_SPINP(d),SBLOCK,XB(C)::QAR2(B)
- R(b);N_GUARD::B(D)
- B(a);N_GUARD::R1(A),XB(a)
- B(g);SBLOCK::QAB1(B)
- Refutation
- R(b);XR(A)
- Try
- R(A);
- Threat
- QAR(B)+B(C)
- Vars
- P(d);P_SPINP(d),SBLOCK,XB(C)::QAR2(B)
- R(b);N_GUARD::B(D)
- B(a);N_GUARD::R1(A),XB(a)
- B(g);SBLOCK::QAB1(B)
- S(f);N_GUARD::B(D)
- Refutation
- R(b);
- Try
- R(A);
- Threat
- QAR(B)+B(C)
- Vars
- S(f);N_GUARD,XR(A)::B(D)
- P(d);P_SPINP(d),SBLOCK,XB(C)::QAR2(B)
- R(b);N_GUARD::B(D)
- B(a);N_GUARD::R1(A),XB(a)
- B(g);SBLOCK::QAB1(B)
- S(f);N_GUARD::B(D)
- Refutation
- R(b);
- Try
- R(F);
- Threat
- QAR(B)+B(C)
- Vars
- P(d);P_SPINP(d),SBLOCK,XB(C)::QAR2(B)
- R(b);N_GUARD::B(D)
- B(a);N_GUARD::R1(A),XB(a)
- B(g);SBLOCK::QAB1(B)
- Refutation
- B(a);
- Try
- Actual
- K(E);S_FLIGHT
- Threat
- QAR(B)+B(C)
- Vars
- S(f);CHECK,N_GUARD::B(D),XS(f)
- P(d);P_SPINP(d),SBLOCK,XB(C)::QAR2(B)
- R(b);N_GUARD::B(D)
- B(a);N_GUARD::R1(A),XB(a)
- B(g);SBLOCK::QAB1(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).