MESON Chess Problem Database
Problem Display
PID: 239814 (8/3N2QK/qrP3pP/2N2P2/1pnp1kPB/5p2/2n1rRR1/3B4 w - - 0 1)
Ellerman, Arnoldo
Themes-64, 1960
#2
12 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ke3
- 2.Bg5#
- 1...Re1
- 2.Rxf3#
- 1...Rd2
- 2.Rxf3#
- 1...Re4
- 2.Rxf3#
- 1...Re5
- 2.Rxf3#
- 1...Re6
- 2.Rxf3#
- 1...Re7
- 2.Rxf3#
- 1...Re8
- 2.Rxf3#
- 1...S2e3
- 2.Qxd4#
- 1...S4e3
- 2.Qe5#
- 1...gxf5
- 2.Bg5#
- 2.Qg5#
- 1...g5
- 2.Bxg5#
- 2.Qxg5#
- 1...Ke3
- Tries
- 1.Bxe2?
- threat
- 2.Rxf3#
- 1...Ke3
- 2.Bg5#
- 1...Se1
- 2.Qxd4#
- 1...Sd2
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Qa3!
- threat
- 1.Rxe2?
- threat
- 2.Sd3#
- 2.Se6#
- 2.Re4#
- 1...Rxc6
- 2.Sd3#
- 2.Re4#
- 1...fxg2
- 2.Re4#
- 1...gxf5
- 2.Sd3#
- 2.Se6#
- 2.Bg3#
- 2.Bg5#
- 2.Qg5#
- 1...f2
- 2.Re4#
- 1...Qa3
- 2.Se6#
- 2.Re4#
- 1...Se1
- 2.Se6#
- 2.Re4#
- 2.Qxd4#
- 1...S2e3
- 2.Qxd4#
- 1...Sb2
- 2.Se6#
- 2.Re4#
- 2.Qe5#
- 1...Sd2
- 2.Se6#
- 2.Qe5#
- 1...S4a3
- 2.Se6#
- 2.Re4#
- 2.Qe5#
- 1...S4e3
- 2.Qe5#
- 1...Sa5
- 2.Se6#
- 2.Re4#
- 2.Qe5#
- 1...Se5
- 2.Se6#
- 2.Re4#
- 2.Qxe5#
- 1...Sd6
- 2.Se6#
- 2.Qe5#
- 1...d3
- 2.Sxd3#
- 2.Se6#
- 2.Re4#
- 1...fxe2!
- threat
- 1.Qxd4+?
- 1...Re4
- 2.Sd3#
- 2.Se6#
- 2.Rxf3#
- 2.Qxe4#
- 1...Sxd4!
- 1...Re4
- 1.Qe5+?
- 1...Rxe5
- 2.Rxf3#
- 1...Sxe5!
- 1...Rxe5
- 1.Qf6?
- threat
- 2.Bg5#
- 2.Qg5#
- 1...Ke3
- 2.Bg5#
- 2.Qg5#
- 1...g5
- 2.Bxg5#
- 2.Qxg5#
- 1...Re7+!
- threat
- 1.Qxg6?
- threat
- 2.Bg5#
- 2.Qg5#
- 1...Ke3
- 2.Bg5#
- 2.Qg5#
- 1...Re7+!
- threat
- 1.Qe7?
- threat
- 2.Sd3#
- 2.Bg5#
- 2.Qg5#
- 1...Re4
- 2.Bg5#
- 2.Rxf3#
- 2.Qg5#
- 2.Qxe4#
- 1...Re5
- 2.Bg5#
- 2.Rxf3#
- 2.Qg5#
- 1...Re6
- 2.Bg5#
- 2.Rxf3#
- 2.Qg5#
- 1...Se5
- 2.Bg5#
- 2.Qg5#
- 1...Qa3
- 2.Bg5#
- 2.Qg5#
- 1...Rd2
- 2.Bg5#
- 2.Rxf3#
- 2.Qg5#
- 2.Qe4#
- 1...Re3
- 2.Bg5#
- 2.Qg5#
- 1...Se1
- 2.Bg5#
- 2.Qg5#
- 1...Sb2
- 2.Bg5#
- 2.Qg5#
- 1...Sd2
- 2.Bg5#
- 2.Qg5#
- 1...S4a3
- 2.Bg5#
- 2.Qg5#
- 1...S4e3
- 2.Bg5#
- 2.Qg5#
- 2.Qd6#
- 2.Qe4#
- 2.Qe5#
- 1...Sa5
- 2.Bg5#
- 2.Qg5#
- 1...Sd6
- 2.Bg5#
- 2.Qg5#
- 1...d3
- 2.Sxd3#
- 2.Bg5#
- 2.Qg5#
- 1...g5
- 2.Sd3#
- 2.Bxg5#
- 2.Qxg5#
- 1...Rxe7+!
- threat
- 1.Bxe2?
- Keys
- 1.Sf6!
- threat
- 2.Sd5#
- 1...Ke3
- 2.Bg5#
- 1...Ke5
- 2.Bg3#
- 1...Re5
- 2.Rxf3#
- 1...S2e3
- 2.Sd3#
- 1...S4e3
- 2.Qc7#
- threat
- 1.Sf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- K(g);N_SPINP(c),S_FLIGHT::B(E)
- R(b);::R1(B),XP(c)
- R(b);P_PINQ(K)::R1(B),XP(c)
- S(a);N_GUARD,S_CUTR(b)::QAR2(K),XP(f)
- S(e);N_GUARD,S_CUTR(b)::QAB1(K)
- Tries
- Try
- B(A);XR(b)
- Threat
- R1(B),XP(c)
- Vars
- K(g);N_SPINP(c),S_FLIGHT::B(E)
- S(a);N_GUARD::QAR2(K),XP(f)
- S(e);N_GUARD::QAB1(K)
- S(e);N_GUARD::QAB1(K),XS(e)
- Refutation
- Q(h);
- Try
- R(B);N_PINP(c),XR(b)
- Threat
- DUALS(3)
- Vars
- P(c);XR(C)::R1(B)
- P(c);::R1(B)
- S(a);N_GUARD::QAR2(K),XP(f)
- S(e);N_GUARD::QAB1(K)
- Refutation
- P(c);XR(B)
- Try
- Q(K);CHECK,XP(f)
- Refutation
- S(a);XQ(K)
- Try
- Q(K);CHECK
- Vars
- R(b);XQ(K)::R1(B),XP(c)
- Refutation
- S(e);XQ(K)
- Try
- Q(K);
- Threat
- DUALS(2)
- Refutation
- R(b);CHECK
- Try
- Q(K);XP(j)
- Threat
- DUALS(2)
- Refutation
- R(b);CHECK
- Try
- Q(K);
- Threat
- DUALS(3)
- Refutation
- R(b);CHECK,XQ(K)
- Try
- Actual
- S(J);
- Threat
- S(J)
- Vars
- K(g);N_SPINP(c),S_FLIGHT::B(E)
- R(b);SBLOCK::R1(B),XP(c)
- S(a);SBLOCK::S(F)
- S(e);N_GUARD,SBLOCK,S_CUTR(b)::QAB(K)
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