MESON Chess Problem Database
Problem Display
PID: 232849 (2KNB3/8/2p1pQ2/p2kP3/1P1NRpq1/3PnPn1/4p3/2r5 w - - 0 1)
Ellerman, Arnoldo
Il Due Mosse, 1960
#2
10 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxf3
- 2.Qxe6#
- 1...Qh5
- 2.Qxe6#
- 1...Qh4
- 2.Qxe6#
- 1...Qg5
- 2.Qxe6#
- 1...Qg7
- 2.Qxe6#
- 1...Ra1
- 2.Bxc6#
- 1...Rb1
- 2.Bxc6#
- 1...Rd1
- 2.Bxc6#
- 1...Re1
- 2.Bxc6#
- 1...Rf1
- 2.Bxc6#
- 1...Rg1
- 2.Bxc6#
- 1...Rh1
- 2.Bxc6#
- 1...Sc2
- 2.Bxc6#
- 1...Sc4
- 2.Bxc6#
- 1...Sef5
- 2.Qxe6#
- 1...Sgf5
- 2.Qxe6#
- 1...c5
- 2.Bc6#
- 1...Qxf3
- Tries
- 1.Sb3?
- threat
- 2.Rd4#
- 1...Sxe4
- 2.fxe4#
- 1...Sc2
- 2.Bxc6#
- 1...Sef5
- 2.Qxe6#
- 1...Sgf5
- 2.Qxe6#
- 1...c5
- 2.Bc6#
- 1...Rc4!
- threat
- 1.S4xe6?
- threat
- 2.Rd4#
- 1...Qxe6+
- 2.Qxe6#
- 1...Sxe4
- 2.fxe4#
- 1...Sc2
- 2.Bxc6#
- 1...Sef5
- 2.Sc7#
- 1...Sgf5
- 2.Sc7#
- 1...c5
- 2.Bc6#
- 1...Rc4!
- threat
- 1.S8xc6?
- threat
- 2.Qd8#
- 1...Rxc6+
- 2.Bxc6#
- 1...Sxe4
- 2.fxe4#
- 1...Qh4
- 2.Qxe6#
- 1...Qg5
- 2.Qxe6#
- 1...Qg7
- 2.Qxe6#
- 1...Sc4
- 2.Se7#
- 1...Sef5
- 2.Qxe6#
- 1...Sgf5
- 2.Qxe6#
- 1...axb4!
- threat
- 1.Sb7?
- threat
- 2.Qd8#
- 1...Qh4
- 2.Qxe6#
- 1...Qg5
- 2.Qxe6#
- 1...Qg7
- 2.Qxe6#
- 1...Sc4
- 2.Bxc6#
- 1...Sef5
- 2.Qxe6#
- 1...Sgf5
- 2.Qxe6#
- 1...Sxe4!
- threat
- 1.Qe7?
- threat
- 2.Qd6#
- 2.Qd7#
- 1...axb4
- 2.Qd6#
- 1...Qg7
- 2.Qd6#
- 2.Qxe6#
- 1...Sc4
- 2.Bxc6#
- 2.Qc5#
- 1...Sef5
- 2.Qxe6#
- 1...Sgf5
- 2.Qxe6#
- 1...Sxe4!
- threat
- 1.Sb3?
- Keys
- 1.S8xe6!
- threat
- 2.Qd8#
- 1...Qxe6+
- 2.Qxe6#
- 1...Sxe4
- 2.fxe4#
- 1...Qh4
- 2.Sc7#
- 1...Qg5
- 2.Sc7#
- 1...Qg7
- 2.Sxf4#
- 1...Sc4
- 2.Bxc6#
- 1...Sef5
- 2.Sc7#
- 1...Sgf5
- 2.Sc7#
- threat
- 1.S8xe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 5
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- Q(f);N_GUARD,XP(B)::QAB1(G),XP(j)
- Q(f);N_GUARD::QAB1(G),XP(j)
- R(a);N_GUARD::B(J),XP(i)
- S(c);S_CUTR(a)::B(J),XP(i)
- S(c);S_CUTQ(f)::QAB1(G),XP(j)
- S(d);S_CUTQ(f)::QAB1(G),XP(j)
- P(i);S_CUTR(a)::B(J)
- Tries
- Try
- S(D);
- Threat
- R1(E)
- Vars
- S(d);OGATE,XR(E)::P(B),XS(d)
- S(c);S_CUTR(a)::B(J),XP(i)
- S(c);S_CUTQ(f)::QAB1(G),XP(j)
- S(d);S_CUTQ(f)::QAB1(G),XP(j)
- P(i);S_CUTR(a)::B(J)
- Refutation
- R(a);
- Try
- S(D);P_SPINS(D),XP(j)
- Threat
- R1(E)
- Vars
- Q(f);CHECK,OGATE,XS(D)::QAB1(G),XQ(f)
- S(d);OGATE,XR(E)::P(B),XS(d)
- S(c);S_CUTR(a)::B(J),XP(i)
- S(c);N_PINS(D)::S(D)
- S(d);N_PINS(D)::S(D)
- P(i);S_CUTR(a)::B(J)
- Refutation
- R(a);
- Try
- S(I);P_SPINS(I),XP(i)
- Threat
- QAR(G)
- Vars
- R(a);CHECK,OGATE,XS(I)::B(J),XR(a)
- S(d);OGATE,XR(E)::P(B),XS(d)
- Q(f);N_GUARD::QAB1(G),XP(j)
- S(c);N_PINS(I)::S(I)
- S(c);S_CUTQ(f)::QAB1(G),XP(j)
- S(d);S_CUTQ(f)::QAB1(G),XP(j)
- Refutation
- P(g);XP(C)
- Try
- S(I);
- Threat
- QAR(G)
- Vars
- Q(f);N_GUARD::QAB1(G),XP(j)
- S(c);S_CUTR(a)::B(J),XP(i)
- S(c);S_CUTQ(f)::QAB1(G),XP(j)
- S(d);S_CUTQ(f)::QAB1(G),XP(j)
- Refutation
- S(d);XR(E)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- P(g);XP(C)::QAR1(G)
- S(c);S_CUTQ(f)::QAB1(G),XP(j)
- S(d);S_CUTQ(f)::QAB1(G),XP(j)
- Refutation
- S(d);XR(E)
- Try
- Actual
- S(I);P_SPINS(I),XP(j)
- Threat
- QAR(G)
- Vars
- Q(f);CHECK,OGATE,XS(I)::QAB1(G),XQ(f)
- S(d);OGATE,XR(E)::P(B),XS(d)
- Q(f);N_PINS(I)::S(I)
- Q(f);N_PINS(I)::S(I),XP(e)
- S(c);S_CUTR(a)::B(J),XP(i)
- S(c);N_PINS(I)::S(I)
- S(d);N_PINS(I)::S(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).