MESON Chess Problem Database
Problem Display
PID: 137298 (3R4/1NK2N1B/3pp2p/R1pk2p1/b2B2pq/4P2p/1n2Q2b/r1r5 w - - 0 1)
Ellerman, Arnoldo
2nd Prize, Problem (Zagreb), 1960
#2
9 + 14
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Rxc5#
- 1...Rd1
- 2.Rxc5#
- 1...Re1
- 2.Rxc5#
- 1...Rf1
- 2.Rxc5#
- 1...Rg1
- 2.Rxc5#
- 1...Rh1
- 2.Rxc5#
- 1...Bg1
- 2.Rxd6#
- 1...Bc2
- 2.Rxc5#
- 1...Sc4
- 2.Rxc5#
- 1...g3
- 2.Rxd6#
- 1...e5
- 2.Rxd6#
- 1...Rb1
- Tries
- 1.Sxc5?
- threat
- 2.Be4#
- 1...Rxc5+
- 2.Rxc5#
- 1...Bc2
- 2.Sa4#
- 1...g3
- 2.Rxd6#
- 1...Sd3!
- threat
- 1.Sbxd6?
- threat
- 2.Be4#
- 1...Bxd6+
- 2.Rxd6#
- 1...Bc2
- 2.Rxc5#
- 1...g3
- 2.Sb5#
- 1...e5!
- threat
- 1.Bc3?
- threat
- 2.Rxc5#
- 2.e4#
- 1...Sd3
- 2.Qxd3#
- 1...e5
- 2.Rxd6#
- 1...Bc2
- 2.Rxc5#
- 1...Bb5
- 2.e4#
- 1...Bd7
- 2.e4#
- 1...g3
- 2.Rxc5#
- 2.Rxd6#
- 1...Rxc3!
- threat
- 1.Bxc5?
- threat
- 2.e4#
- 1...Rxc5+
- 2.Rxc5#
- 1...Sd3
- 2.Qxd3#
- 1...e5
- 2.Rxd6#
- 1...Bc2
- 2.Ba3#
- 1...g3
- 2.Rxd6#
- 1...Rc4!
- threat
- 1.Be5?
- threat
- 2.Rxd6#
- 2.e4#
- 1...Sd3
- 2.Qxd3#
- 1...Rc4
- 2.Rxd6#
- 1...Bc2
- 2.Rxc5#
- 2.Rxd6#
- 1...Bd7
- 2.e4#
- 1...Sc4
- 2.Rxc5#
- 2.Qd3#
- 2.e4#
- 1...g3
- 2.Rxd6#
- 1...Bxe5!
- threat
- 1.Qd3?
- threat
- 2.Bxb2#
- 2.Be4#
- 2.e4#
- 1...e5
- 2.Rxd6#
- 1...Rc4
- 2.Be4#
- 2.Qe4#
- 2.e4#
- 1...Qe1
- 2.Bxb2#
- 2.Be4#
- 1...Ra3
- 2.Be4#
- 2.e4#
- 1...Rd1
- 2.Be4#
- 2.Rxc5#
- 2.e4#
- 1...Re1
- 2.Bxb2#
- 2.Be4#
- 2.Rxc5#
- 1...Rc3
- 2.Be4#
- 2.e4#
- 1...Be5
- 2.Be4#
- 2.e4#
- 1...Bc2
- 2.Be4#
- 2.Rxc5#
- 2.e4#
- 1...Bb5
- 2.Be4#
- 2.e4#
- 1...Sd1
- 2.Bxa1#
- 2.Bb2#
- 2.Bc3#
- 2.Bxc5#
- 2.Be5#
- 2.Bf6#
- 2.Bg7#
- 2.Bh8#
- 2.Be4#
- 2.e4#
- 1...Sc4
- 2.Bxa1#
- 2.Bb2#
- 2.Bc3#
- 2.Bxc5#
- 2.Be5#
- 2.Bf6#
- 2.Bg7#
- 2.Bh8#
- 2.Be4#
- 2.Rxc5#
- 2.Qe4#
- 2.e4#
- 1...g3
- 2.Rxd6#
- 1...Sxd3!
- threat
- 1.Sxc5?
- Keys
- 1.Sfxd6!
- threat
- 2.Be4#
- 1...Bxd6+
- 2.Rxd6#
- 1...e5
- 2.Bg8#
- 1...Bc2
- 2.Rxc5#
- 1...g3
- 2.Sb5#
- threat
- 1.Sfxd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- R(b);N_GUARD::R1(D),XP(i)
- B(d);N_GUARD::R1(I),XP(l)
- B(f);S_CUTR(b)::R1(D),XP(i)
- S(c);S_CUTR(b)::R1(D),XP(i)
- P(g);S_CUTB(d)::R1(I),XP(l)
- P(m);S_CUTB(d)::R1(I),XP(l)
- Tries
- Try
- S(E);P_PINP(l),P_SPINS(E),XP(i)
- Threat
- B(H)
- Vars
- R(b);CHECK,OGATE,P_SPINR(b),XS(E)::R1(D),XR(b)
- B(f);N_PINS(E)::R(D)+S(E)
- P(g);S_CUTB(d)::R1(I),XP(l)
- Refutation
- S(c);
- Try
- S(E);P_SPINS(E),XP(l)
- Threat
- B(H)
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),XS(E)::R1(I),XB(d)
- B(f);S_CUTR(b)::R1(D),XP(i)
- P(g);N_PINS(E)::R(I)+S(E)
- Refutation
- P(m);N_PINS(E)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::QAR2(A),XS(c)
- P(m);S_CUTB(d)::R1(I),XP(l)
- B(f);::R1(D),XP(i)
- B(f);N_SPINP(i),P_SPINP(l)::P(B)
- B(f);::P(B)
- Refutation
- R(b);XB(C)
- Try
- B(C);P_PINP(l),P_SPINB(C),XP(i)
- Threat
- P(B)
- Vars
- R(b);CHECK,OGATE,P_SPINR(b),XB(C)::R1(D),XR(b)
- S(c);N_GUARD::QAR2(A),XS(c)
- P(m);S_CUTB(d)::R1(I),XP(l)
- B(f);N_PINB(C)::R(D)+B(C)
- P(g);S_CUTB(d)::R1(I),XP(l)
- Refutation
- R(b);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::QAR2(A),XS(c)
- R(b);::R1(I),XP(l)
- B(f);::P(B)
- P(g);::R1(I),XP(l)
- Refutation
- B(d);XB(C)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- P(m);S_CUTB(d)::R1(I),XP(l)
- P(g);S_CUTB(d)::R1(I),XP(l)
- Refutation
- S(c);XQ(A)
- Try
- Actual
- S(G);P_SPINS(G),XP(l)
- Threat
- B(H)
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),XS(G)::R1(I),XB(d)
- P(m);N_PINS(G),OGATEB::B(H)
- B(f);S_CUTR(b)::R1(D),XP(i)
- P(g);N_PINS(G)::R(I)+S(G)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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