MESON Chess Problem Database
Problem Display
PID: 242307 (BRK4B/3R4/1N2P3/1pkp4/Pr6/P1rbn3/3P4/2N5 w - - 0 1)
Morra, Juan Carlos
Tijdschrift vd KNSB, 1953
#2
11 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rc2
- 2.Sxd3#
- 1...Rcc4
- 2.Sxd3#
- 1...Bc4
- 2.d4#
- 1...Sd1
- 2.Rxd5#
- 1...Sf1
- 2.Rxd5#
- 1...Sc2
- 2.Rxd5#
- 1...Sg2
- 2.Rxd5#
- 1...Sc4
- 2.Rxd5#
- 1...Sg4
- 2.Rxd5#
- 1...Sf5
- 2.Rxd5#
- 1...Rc2
- Tries
- 1.Bxc3?
- threat
- 2.Sxd3#
- 2.axb4#
- 1...Rxa4
- 2.Sb3#
- 2.Sxd3#
- 1...Rb1
- 2.Sxd3#
- 1...Rb2
- 2.Sxd3#
- 1...Rb3
- 2.Sxb3#
- 2.Sxd3#
- 1...Rc4
- 2.Sb3#
- 2.Sxd3#
- 1...Rd4
- 2.Sb3#
- 1...Re4
- 2.Sb3#
- 2.Sxd3#
- 1...Rf4
- 2.Sb3#
- 2.Sxd3#
- 1...Rg4
- 2.Sb3#
- 2.Sxd3#
- 1...Rh4
- 2.Sb3#
- 2.Sxd3#
- 1...Bb1
- 2.axb4#
- 1...Bf1
- 2.axb4#
- 1...Bc2
- 2.axb4#
- 1...Be2
- 2.axb4#
- 1...Bc4
- 2.d4#
- 2.axb4#
- 1...Be4
- 2.axb4#
- 1...Bf5
- 2.axb4#
- 1...Bg6
- 2.axb4#
- 1...Bh7
- 2.axb4#
- 1...Sc2
- 2.Sxd3#
- 2.Rxd5#
- 1...bxa4!
- threat
- 1.dxc3?
- threat
- 2.Sxd3#
- 2.axb4#
- 2.cxb4#
- 1...Rxa4
- 2.Sb3#
- 2.Sxd3#
- 1...Rb1
- 2.Sxd3#
- 2.Bd4#
- 1...Rb2
- 2.Sxd3#
- 2.Bd4#
- 1...Rb3
- 2.Sxb3#
- 2.Sxd3#
- 2.Bd4#
- 1...Rc4
- 2.Sb3#
- 2.Sxd3#
- 1...Rd4
- 2.Sb3#
- 2.Bxd4#
- 2.cxd4#
- 1...Re4
- 2.Sb3#
- 2.Sxd3#
- 1...Rf4
- 2.Sb3#
- 2.Sxd3#
- 1...Rg4
- 2.Sb3#
- 2.Sxd3#
- 1...Rh4
- 2.Sb3#
- 2.Sxd3#
- 1...Bb1
- 2.axb4#
- 2.cxb4#
- 1...Bf1
- 2.axb4#
- 2.cxb4#
- 1...Bc2
- 2.axb4#
- 2.cxb4#
- 1...Be2
- 2.axb4#
- 2.cxb4#
- 1...Bc4
- 2.Bd4#
- 2.axb4#
- 2.cxb4#
- 1...Be4
- 2.axb4#
- 2.cxb4#
- 1...Bf5
- 2.axb4#
- 2.cxb4#
- 1...Bg6
- 2.axb4#
- 2.cxb4#
- 1...Bh7
- 2.axb4#
- 2.cxb4#
- 1...Sc2
- 2.Sxd3#
- 2.Rxd5#
- 1...bxa4!
- threat
- 1.dxe3?
- threat
- 2.Rxd5#
- 1...Rd4
- 2.Bxd4#
- 2.exd4#
- 1...Bc4
- 2.Bd4#
- 1...d4
- 2.Rd5#
- 1...Be4!
- threat
- 1.Bxc3?
- Keys
- 1.Sc4!
- threat
- 2.Rc7#
- 1...Kxc4
- 2.Rc7#
- 1...Rcxc4
- 2.Sxd3#
- 1...Rbxc4
- 2.Rxb5#
- 1...Bxc4
- 2.d4#
- 1...Sxc4
- 2.Rxd5#
- 1...bxc4
- 2.axb4#
- 1...dxc4
- 2.Bd4#
- threat
- 1.Sc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- R(a);N_GUARD::S(A),XB(b)
- B(b);OGATE::P(B)
- S(c);N_GUARD::R1(G),XP(g)
- Tries
- Try
- B(K);XR(a)
- Threat
- DUALS(2)
- Vars
- R(d);::S(A),XB(b)
- R(d);N_GUARD::S(A)
- B(b);::P(C),XR(d)
- Refutation
- P(e);XP(D)
- Try
- P(B);XR(a)
- Threat
- DUALS(3)
- Refutation
- P(e);XP(D)
- Try
- P(B);XS(c)
- Threat
- R1(G),XP(g)
- Vars
- B(b);S_CUTR(d)::B(K)
- P(g);::R1(G)
- Refutation
- B(b);
- Try
- Actual
- S(E);
- Threat
- R(G)
- Vars
- K(f);P-FLIGHT,XS(E)::R(G)
- R(a);N_GUARD,SBLOCK,XS(E)::S(A),XB(b)
- R(d);N_GUARD,SBLOCK,XS(E)::R1(I),XP(e)
- B(b);OGATE,SBLOCK,XS(E)::P(B)
- S(c);N_GUARD,SBLOCK,XS(E)::R1(G),XP(g)
- P(e);SBLOCK,XS(E)::P(C),XR(d)
- P(g);SBLOCK,XS(E)::B(K)
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