MESON Chess Problem Database
Problem Display
PID: 232884 (2rbB1b1/2P5/2p1kP1K/2PR4/3B1p1p/1Q5r/2p3P1/2q5 w - - 0 1)
Morra, Juan Carlos
Il Due Mosse, 1957
#2
9 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Rg5#
- 2.Rh5#
- 1...Rh2
- 2.Rg5#
- 2.Rh5#
- 1...Bxf6
- 2.Re5#
- 1...Bf7
- 2.Bd7#
- 1...f3+
- 2.Rg5#
- 1...cxd5
- 2.Qxh3#
- 1...Rh1
- Tries
- 1.cxd8Q?
- threat
- 2.Re5#
- 2.Qe7#
- 2.Qxh3#
- 2.Qd6#
- 2.Qd7#
- 2.Qxc8#
- 1...f3+
- 2.Rg5#
- 1...Rxb3
- 2.Re5#
- 2.Qd6#
- 2.Qd7#
- 1...cxd5
- 2.Qbxd5#
- 2.Qxh3#
- 2.Qdxd5#
- 2.Qd7#
- 2.Qxc8#
- 1...Qa3
- 2.Re5#
- 2.Qe7#
- 2.Qd6#
- 2.Qd7#
- 2.Qxc8#
- 1...Qe3
- 2.Re5#
- 2.Qe7#
- 2.Qd6#
- 2.Qd7#
- 2.Qxc8#
- 1...Qd1
- 2.Re5#
- 2.Qe7#
- 2.Qd6#
- 2.Qd7#
- 2.Qxc8#
- 1...Qh1
- 2.Re5#
- 2.Qe7#
- 2.Qd6#
- 2.Qd7#
- 2.Qxc8#
- 1...Rh1
- 2.Re5#
- 2.Rg5#
- 2.Rh5#
- 2.Qe7#
- 2.Qd6#
- 2.Qd7#
- 2.Qxc8#
- 1...Rh2
- 2.Re5#
- 2.Rg5#
- 2.Rh5#
- 2.Qe7#
- 2.Qd6#
- 2.Qd7#
- 2.Qxc8#
- 1...Rc3
- 2.Re5#
- 2.Qe7#
- 2.Qd6#
- 2.Qd7#
- 2.Qxc8#
- 1...Rd3
- 2.Re5#
- 2.Qe7#
- 2.Qd6#
- 2.Qd7#
- 2.Qxc8#
- 1...Re3
- 2.Re5#
- 2.Qe7#
- 2.Qd6#
- 2.Qd7#
- 2.Qxc8#
- 1...Rf3
- 2.Re5#
- 2.Qe7#
- 2.Qd6#
- 2.Qd7#
- 2.Qxc8#
- 1...Rg3
- 2.Re5#
- 2.Qe7#
- 2.Qd6#
- 2.Qd7#
- 2.Qxc8#
- 1...Rc7
- 2.Re5#
- 2.Qxh3#
- 2.Qd6#
- 1...Ra8
- 2.Re5#
- 2.Qe7#
- 2.Qxh3#
- 2.Qd6#
- 2.Qd7#
- 1...Rb8
- 2.Re5#
- 2.Qe7#
- 2.Qxh3#
- 2.Qd6#
- 2.Qd7#
- 1...Bh7
- 2.Re5#
- 2.Qe7#
- 2.Qd6#
- 2.Qd7#
- 2.Qxc8#
- 1...Rxd8!
- threat
- 1.cxd8B?
- threat
- 2.Re5#
- 1...f3+
- 2.Rg5#
- 1...cxd5
- 2.Qxh3#
- 1...Rxd8!
- threat
- 1.cxd8R?
- threat
- 2.R8d6#
- 2.Qxh3#
- 1...f3+
- 2.Rg5#
- 1...Rxb3
- 2.R8d6#
- 1...cxd5
- 2.Qxd5#
- 2.Qxh3#
- 1...Qa3
- 2.R8d6#
- 1...Qe3
- 2.R8d6#
- 1...Qd1
- 2.R8d6#
- 1...Qh1
- 2.R8d6#
- 1...Rh1
- 2.Rg5#
- 2.Rh5#
- 2.R8d6#
- 1...Rh2
- 2.Rg5#
- 2.Rh5#
- 2.R8d6#
- 1...Rc3
- 2.R8d6#
- 1...Rd3
- 2.R8d6#
- 1...Re3
- 2.R8d6#
- 1...Rf3
- 2.R8d6#
- 1...Rg3
- 2.R8d6#
- 1...Bh7
- 2.R8d6#
- 1...Rxd8!
- threat
- 1.cxd8Q?
- Keys
- 1.g4!
- threat
- 2.Rd6#
- 1...f3+
- 2.Rg5#
- 1...fxg4 ep+
- 2.Rg5#
- 1...hxg4 ep+
- 2.Rh5#
- 1...Bxf6
- 2.Re5#
- 1...cxd5
- 2.Qb6#
- threat
- 1.g4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- B(i);SBLOCK,XP(F)::QAB(B)+R(E),DCHECK
- B(j);SBLOCK::B(I)
- P(d);CHECK,S_CUTR(c)::QAB(B)+R(E)
- P(f);P_SPINP(f),SBLOCK,XR(E)::QAB(B),XR(c)
- Tries
- Try
- P(H);XB(i)
- Threat
- DUALS(6)
- Vars
- P(d);CHECK,S_CUTR(c)::QAB(B)+R(E)
- Refutation
- R(h);XQ(H)
- Try
- P(H);XB(i)
- Threat
- QAB(B)+R(E),DCHECK
- Vars
- P(d);CHECK,S_CUTR(c)::QAB(B)+R(E)
- P(f);P_SPINP(f),SBLOCK,XR(E)::QAB(B),XR(c)
- Refutation
- R(h);XB(H)
- Try
- P(H);XB(i)
- Threat
- DUALS(2)
- Vars
- P(d);CHECK,S_CUTR(c)::QAB(B)+R(E)
- R(c);XQ(B)::R1(H)
- Q(a);::R1(H)
- R(c);::R1(H)
- B(j);::R1(H)
- Refutation
- R(h);XR(H)
- Try
- Actual
- P(A);
- Threat
- QAB(B)+R(E),DCHECK
- Vars
- P(d);CHECK,S_CUTR(c)::QAB(B)+R(E)
- P(d);CHECK,EP,S_CUTR(c),XP(A)::QAB(B)+R(E)
- P(e);CHECK,EP,S_CUTR(c),XP(A)::QAB(B)+R(E)
- B(i);SBLOCK,XP(F)::QAB(B)+R(E),DCHECK
- P(f);OGATEB,P_SPINP(f),SBLOCK,XR(E)::QAR(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).