MESON Chess Problem Database
Problem Display
PID: 264948 (4R1K1/rB1p1p1n/p4p2/Q1b1Bk1P/4N1p1/1b4P1/3R4/8 w - - 0 1)
Ellerman, Arnoldo
Probleemblad, 1949
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Bf2
- 2.Rxf2#
- 1...Ba3
- 2.Rf2#
- 1...Bb4
- 2.Rf2#
- 1...Bd6
- 2.Rf2#
- 1...Bf8
- 2.Rf2#
- 1...Bf2
- Tries
- 1.Ba1?
- threat
- 2.Rf2#
- 1...Bd1
- 2.Rd5#
- 1...Bd5
- 2.Rxd5#
- 1...Sg5
- 2.Sd6#
- 1...d5!
- threat
- 1.Bb2?
- threat
- 2.Rf2#
- 1...Bd1
- 2.Rd5#
- 1...Bd5
- 2.Rxd5#
- 1...Sg5
- 2.Sd6#
- 1...d5!
- threat
- 1.Bc3?
- threat
- 2.Rf2#
- 1...Bd1
- 2.Rd5#
- 1...Bd5
- 2.Rxd5#
- 1...Sg5
- 2.Sd6#
- 1...d5!
- threat
- 1.Bd4?
- threat
- 2.Rf2#
- 1...Sg5
- 2.Sd6#
- 1...Bd1!
- threat
- 1.Bf4?
- threat
- 2.Sd6#
- 1...Bd5
- 2.Rxd5#
- 1...d6
- 2.Sxd6#
- 1...d5!
- threat
- 1.Bd6?
- threat
- 2.Rf2#
- 1...Bd1
- 2.Rd5#
- 2.Qxc5#
- 1...Bd5
- 2.Rxd5#
- 1...Sg5!
- threat
- 1.Bxf6?
- threat
- 2.Rf2#
- 2.Re5#
- 1...d5
- 2.Re5#
- 1...Ra8
- 2.Rf2#
- 1...Bd1
- 2.Rd5#
- 2.Re5#
- 1...Bd5
- 2.Rxd5#
- 2.Re5#
- 1...Be6
- 2.Rf2#
- 1...Sg5
- 2.Re5#
- 1...d6
- 2.Rf2#
- 1...Sxf6+!
- threat
- 1.Bb8?
- threat
- 2.Rf2#
- 1...Bd1
- 2.Rd5#
- 1...Bd5
- 2.Rxd5#
- 1...Sg5
- 2.Sd6#
- 1...d5!
- threat
- 1.Ba1?
- Keys
- 1.Bc7!
- threat
- 2.Rf2#
- 1...d5
- 2.Bc8#
- 1...Bd1
- 2.Rd5#
- 1...Bd5
- 2.Rxd5#
- 1...Sg5
- 2.Sd6#
- threat
- 1.Bc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- B(c);N_GUARD::R(A),XB(c)
- B(c);N_GUARD::R(A)
- Tries
- Try
- B(E);P_PINB(c)
- Threat
- R(A)
- Vars
- B(a);N_GUARD::R(A)
- B(a);N_GUARD,N_SPINB(c)::R(A),XB(a)
- S(j);SBLOCK::S(C)
- Refutation
- P(h);N_SPINB(c)
- Try
- B(E);P_PINB(c)
- Threat
- R(A)
- Vars
- B(a);N_GUARD::R(A)
- B(a);N_GUARD,N_SPINB(c)::R(A),XB(a)
- S(j);SBLOCK::S(C)
- Refutation
- P(h);N_SPINB(c)
- Try
- B(E);P_PINB(c)
- Threat
- R(A)
- Vars
- B(a);N_GUARD::R(A)
- B(a);N_GUARD,N_SPINB(c)::R(A),XB(a)
- S(j);SBLOCK::S(C)
- Refutation
- P(h);N_SPINB(c)
- Try
- B(E);P_PINB(c)
- Threat
- R(A)
- Vars
- S(j);SBLOCK::S(C)
- Refutation
- B(a);
- Try
- B(E);P_PINB(c)
- Threat
- S(C)
- Vars
- B(a);N_GUARD,N_SPINB(c)::R(A),XB(a)
- P(h);::S(C),XP(h)
- Refutation
- P(h);N_SPINB(c)
- Try
- B(E);P_PINB(c)
- Threat
- R(A)
- Vars
- B(a);N_GUARD,N_SPINB(c)::R(A),XB(a)
- Refutation
- S(j);
- Try
- B(E);P_PINB(c),XP(f)
- Threat
- DUALS(2)
- Vars
- P(h);N_SPINB(c)::R1(H)
- R(g);P_PINR(H)::R(A)
- B(a);::R(A)
- S(j);::R1(H)
- P(h);::R(A)
- Refutation
- S(j);CHECK,XB(E)
- Try
- B(E);P_PINB(c)
- Threat
- R(A)
- Vars
- B(a);N_GUARD::R(A)
- B(a);N_GUARD,N_SPINB(c)::R(A),XB(a)
- S(j);SBLOCK::S(C)
- Refutation
- P(h);N_SPINB(c)
- Try
- Actual
- B(E);P_PINB(c)
- Threat
- R(A)
- Vars
- P(h);N_SPINB(c),OGATEB::B(G)
- B(a);N_GUARD::R(A)
- B(a);N_GUARD,N_SPINB(c)::R(A),XB(a)
- S(j);SBLOCK::S(C)
Developed and maintained by Brian Stephenson.
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