MESON Chess Problem Database
Problem Display
PID: 238639 (2br1nQ1/b3R3/5N2/q3r2P/ppR1Pk1P/5ppB/1B1PP3/1K2N2n w - - 0 1)
Piatesi, Antonio
Probleemblad, 1981
#2
13 + 12
SOLUTION
- SOUND
- Sets
- 1...Qb6
- 2.Bxe5#
- 1...Qa6
- 2.Bxe5#
- 1...Rxe4
- 2.Rcxe4#
- 2.Rexe4#
- 1...Rc5
- 2.e3#
- 1...Rf5
- 2.Qg4#
- 1...Re6
- 2.Qg4#
- 1...Rd3
- 2.Sxd3#
- 1...Rd4
- 2.e3#
- 1...Rd7
- 2.Qg4#
- 1...Re8
- 2.Sd3#
- 1...Bd4
- 2.Sd3#
- 1...Bc5
- 2.Bxe5#
- 1...Bb8
- 2.e3#
- 1...Bg4
- 2.Qxg4#
- 1...Bf5
- 2.Qg5#
- 1...Ba6
- 2.Qg4#
- 1...Bb7
- 2.Qg4#
- 1...Bd7
- 2.Sd3#
- 1...Se6
- 2.Qg4#
- 1...Sd7
- 2.Sd3#
- 2.Qg4#
- 1...f2
- 2.Sg2#
- 1...Qb6
- Tries
- 1.Sd7?
- threat
- 2.Sd3#
- 2.Qg4#
- 1...Rxd7
- 2.Qg4#
- 1...Bxd7
- 2.Sd3#
- 1...fxe2
- 2.Qg4#
- 1...Bd4
- 2.Qg4#
- 1...Qd5
- 2.Qg4#
- 1...Rd5
- 2.Qg4#
- 1...Rg5
- 2.Sd3#
- 1...Sg6
- 2.Sd3#
- 1...Sf2!
- threat
- 1.Bd4?
- threat
- 2.Sd3#
- 2.e3#
- 1...Rxe4
- 2.Sd3#
- 2.Rxe4#
- 1...Rxd4
- 2.e3#
- 1...Bxd4
- 2.Sd3#
- 1...Sf2
- 2.e3#
- 1...fxe2!
- threat
- 1.Bf5?
- threat
- 2.Qg4#
- 2.Qg5#
- 1...Rxf5
- 2.Qg4#
- 1...Rxd2
- 2.Qg5#
- 1...Bxf5
- 2.Qg5#
- 1...Sf2
- 2.Qg5#
- 1...Se6
- 2.Qg4#
- 1...Sh7
- 2.Qg4#
- 1...Sg6!
- threat
- 1.Bd7?
- threat
- 2.Sd3#
- 2.Qg4#
- 1...Rxd7
- 2.Qg4#
- 1...Bxd7
- 2.Sd3#
- 1...fxe2
- 2.Qg4#
- 1...Qd5
- 2.Qg4#
- 1...Rd5
- 2.Qg4#
- 1...Rg5
- 2.Sd3#
- 1...Sg6
- 2.Sd3#
- 1...Sf2!
- threat
- 1.Rc3?
- threat
- 2.Rxf3#
- 1...fxe2
- 2.Sg2#
- 2.Rf3#
- 1...Rd3
- 2.Sxd3#
- 1...Be3
- 2.dxe3#
- 1...Bg4
- 2.Qxg4#
- 1...f2
- 2.Sg2#
- 2.Rf3#
- 1...bxc3!
- threat
- 1.Rd4?
- threat
- 2.Sd3#
- 2.e3#
- 1...Rxe7
- 2.Sd3#
- 1...Rxd4
- 2.e3#
- 1...Bxd4
- 2.Sd3#
- 1...Re6
- 2.Sd3#
- 1...Sf2
- 2.e3#
- 1...Qb5
- 2.e3#
- 1...Qa6
- 2.e3#
- 1...Ba6
- 2.Qg4#
- 2.e3#
- 1...fxe2!
- threat
- 1.Rd7?
- threat
- 2.Sd3#
- 2.Qg4#
- 1...Rxd7
- 2.Qg4#
- 1...Bxd7
- 2.Sd3#
- 1...fxe2
- 2.Qg4#
- 1...Qd5
- 2.Qg4#
- 1...Rd5
- 2.Qg4#
- 1...Rg5
- 2.Sd3#
- 1...Sg6
- 2.Sd3#
- 1...Sf2!
- threat
- 1.Sd7?
- Keys
- 1.Rf7!
- threat
- 2.Sd5#
- 1...Qd5
- 2.Sxd5#
- 1...Red5
- 2.Sxd5#
- 1...Rf5
- 2.Qg4#
- 1...Rd4
- 2.e3#
- 1...Rdd5
- 2.Sxd5#
- 1...Bd4
- 2.Sd3#
- 1...Bf5
- 2.Qg5#
- threat
- 1.Rf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 15
- Sets
- Q(g);N_GUARD::B(C),XR(h)
- R(h);S_CUTB(i)::P(E)
- R(h);S_CUTB(j)::QAR1(M)
- R(k);N_GUARD::S(B),XR(k)
- R(k);S_CUTB(i)::P(E)
- R(k);S_CUTB(j)::QAR1(M)
- R(k);N_GUARD::S(B)
- B(i);S_CUTR(k)::S(B)
- B(i);S_CUTQ(g)::B(C),XR(h)
- B(i);N_GUARD::P(E)
- B(j);N_GUARD::QAR1(M),XB(j)
- B(j);P_PINP(H),S_CUTR(h)::QAB1(M)
- B(j);N_GUARD::QAR1(M)
- B(j);S_CUTR(k)::S(B)
- S(l);S_CUTB(j)::QAR1(M)
- P(b);N_GUARD::S(B)
- Tries
- Try
- S(K);
- Threat
- DUALS(2)
- Vars
- R(k);XS(K)::QAR1(M)
- B(j);XS(K)::S(B)
- P(b);XP(E)::QAR1(M)
- B(i);::QAR1(M)
- Q(g);::QAR1(M)
- R(h);::QAR1(M)
- R(h);::S(B)
- S(l);::S(B)
- Refutation
- S(a);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(k);XB(C)::P(E)
- B(i);XB(C)::S(B)
- S(a);::P(E)
- Refutation
- P(b);XP(E)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(h);XB(F)::QAR1(M)
- R(k);XP(D)::QAB1(M)
- B(j);P_PINP(H),XB(F)::QAB1(M)
- S(a);::QAB1(M)
- S(l);::QAR1(M)
- Refutation
- S(l);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(k);XB(F)::QAR1(M)
- B(j);XB(F)::S(B)
- P(b);XP(E)::QAR1(M)
- Q(g);::QAR1(M)
- R(h);::QAR1(M)
- R(h);::S(B)
- S(l);::S(B)
- Refutation
- S(a);
- Try
- R(G);
- Threat
- R1(G),XP(b)
- Vars
- R(k);N_GUARD::S(B),XR(k)
- B(i);OGATE::P(D),XB(i)
- B(j);N_GUARD::QAR1(M),XB(j)
- Refutation
- P(e);XR(G)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- R(h);XR(L)::S(B)
- R(k);XR(G)::P(E)
- B(i);XR(G)::S(B)
- R(h);::S(B)
- S(a);::P(E)
- Q(g);::P(E)
- Refutation
- P(b);XP(E)
- Try
- R(L);
- Threat
- DUALS(2)
- Vars
- R(k);XR(L)::QAR1(M)
- B(j);XR(L)::S(B)
- P(b);XP(E)::QAR1(M)
- Q(g);::QAR1(M)
- R(h);::QAR1(M)
- R(h);::S(B)
- S(l);::S(B)
- Refutation
- S(a);
- Try
- Actual
- R(L);
- Threat
- R(L)+S(K),DCHECK
- Vars
- Q(g);::R(L)+S(K),DCHECK,XQ(g)
- R(h);::R(L)+S(K),DCHECK,XR(h)
- R(h);S_CUTB(j)::QAR1(M)
- R(k);S_CUTB(i)::P(E)
- R(k);::R(L)+S(K),DCHECK,XR(k)
- B(i);S_CUTR(k)::S(B)
- B(j);P_PINP(H),S_CUTR(h)::QAB1(M)
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).