MESON Chess Problem Database
Problem Display
PID: 233874 (2R2B2/4pp2/K6p/b1P4r/1pkpBQp1/2n1P3/P3P3/2R5 w - - 0 1)
Ellerman, Arnoldo
Skakbladet, 1949
#2
10 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Bd3#
- 1...dxe3
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bb7#
- 2.Ba8#
- 1...d3
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bb7#
- 2.Ba8#
- 2.exd3#
- 1...e5
- 2.Qxf7#
- 1...Rd5
- Tries
- 1.Bb1?
- threat
- 2.Qxd4#
- 1...Rd5
- 2.Bd3#
- 1...e5
- 2.Qxf7#
- 1...Kd5!
- threat
- 1.Bh1?
- threat
- 2.Qxd4#
- 1...e5
- 2.Qxf7#
- 1...Rd5!
- threat
- 1.Bc2?
- threat
- 2.Bb3#
- 2.Qxd4#
- 1...Kd5
- 2.Bb3#
- 1...Sxa2
- 2.Qxd4#
- 1...Bc7
- 2.Qxd4#
- 1...Se4
- 2.Bb3#
- 2.Bxe4#
- 1...Sb5
- 2.Bb3#
- 1...b3
- 2.Qxd4#
- 1...Rd5
- 2.Bb3#
- 2.Bd3#
- 1...e5
- 2.Bb3#
- 1...Sxe2!
- threat
- 1.Bg2?
- threat
- 2.Qxd4#
- 1...e5
- 2.Qxf7#
- 1...Rd5!
- threat
- 1.Bf3?
- threat
- 2.Qxd4#
- 1...e5
- 2.Qxf7#
- 1...Rd5!
- threat
- 1.Bf5?
- threat
- 2.Qxd4#
- 1...Kd5
- 2.Qxd4#
- 1...e5!
- threat
- 1.Bg6?
- threat
- 2.Qxd4#
- 1...Rd5
- 2.Bd3#
- 1...e5
- 2.Bxf7#
- 2.Qxf7#
- 1...Kd5!
- threat
- 1.Bb7?
- threat
- 2.Qxd4#
- 1...e5
- 2.Qxf7#
- 1...Rd5!
- threat
- 1.Bh7?
- threat
- 2.Qxd4#
- 1...Rd5
- 2.Bd3#
- 1...e5
- 2.Qxf7#
- 1...Kd5!
- threat
- 1.Ba8?
- threat
- 2.Qxd4#
- 1...e5
- 2.Qxf7#
- 1...Rd5!
- threat
- 1.Qe5?
- threat
- 2.Bd3#
- 2.Bd5#
- 2.Qxd4#
- 1...dxe3
- 2.Bd3#
- 2.Bd5#
- 1...b3
- 2.Qxd4#
- 1...Bc7
- 2.Bd3#
- 2.Qxd4#
- 1...d3
- 2.Bxd3#
- 2.Bd5#
- 2.Qd4#
- 2.exd3#
- 1...e6
- 2.Bd3#
- 2.Qxd4#
- 1...Rxe5!
- threat
- 1.Qd6?
- threat
- 2.Bd3#
- 2.Qxd4#
- 1...dxe3
- 2.Bd3#
- 2.Qd3#
- 1...b3
- 2.Qxd4#
- 1...Rd5
- 2.Bd3#
- 2.Bxd5#
- 2.Qxd5#
- 1...d3
- 2.Bxd3#
- 2.Qxd3#
- 2.Qd4#
- 2.exd3#
- 1...e5
- 2.Bd3#
- 2.Bd5#
- 2.Qd5#
- 1...exd6!
- threat
- 1.Qxf7+?
- 1...Rd5
- 2.Bd3#
- 2.Bxd5#
- 2.Qxd5#
- 1...e6!
- 1...Rd5
- 1.Bb1?
- Keys
- 1.Bc6!
- threat
- 2.Qxd4#
- 1...Kxc5
- 2.Qxd4#
- 1...Rd5
- 2.Bb5#
- 1...e5
- 2.Qxf7#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(g);SBLOCK::B(E)
- P(i);N_GUARD,S_CUTR(g)::QAB(F),XP(j)
- Tries
- Try
- B(E);P_PINP(d)
- Threat
- QAR1(F),XP(d)
- Vars
- R(g);SBLOCK::B(E)
- P(i);N_GUARD,S_CUTR(g)::QAB(F),XP(j)
- Refutation
- K(c);N_SPINP(d),N_SPINS(a),S_FLIGHT
- Try
- B(E);P_PINP(d)
- Threat
- QAR1(F),XP(d)
- Vars
- P(i);N_GUARD,S_CUTR(g)::QAB(F),XP(j)
- Refutation
- R(g);
- Try
- B(E);N_PINS(a),P_PINP(d)
- Threat
- DUALS(2)
- Vars
- K(c);N_SPINP(d),S_FLIGHT::B(E)
- S(a);XP(B)::QAR1(F),XP(d)
- B(f);::QAR1(F),XP(d)
- S(a);::R(A)+B(E),DCHECK
- P(b);::QAR1(F),XP(d)
- P(i);::B(E)
- Refutation
- S(a);XP(C)
- Try
- B(E);P_PINP(d)
- Threat
- QAR1(F),XP(d)
- Vars
- P(i);N_GUARD,S_CUTR(g)::QAB(F),XP(j)
- Refutation
- R(g);
- Try
- B(E);P_PINP(d)
- Threat
- QAR1(F),XP(d)
- Vars
- P(i);N_GUARD,S_CUTR(g)::QAB(F),XP(j)
- Refutation
- R(g);
- Try
- B(E);P_PINP(d)
- Threat
- QAR1(F),XP(d)
- Vars
- K(c);N_SPINP(d),N_SPINS(a),S_FLIGHT::QAR1(F),XP(d)
- Refutation
- P(i);
- Try
- B(E);P_PINP(d)
- Threat
- QAR1(F),XP(d)
- Vars
- R(g);SBLOCK::B(E)
- Refutation
- K(c);N_SPINP(d),N_SPINS(a),S_FLIGHT
- Try
- B(E);P_PINP(d)
- Threat
- QAR1(F),XP(d)
- Vars
- P(i);N_GUARD,S_CUTR(g)::QAB(F),XP(j)
- Refutation
- R(g);
- Try
- B(E);P_PINP(d)
- Threat
- QAR1(F),XP(d)
- Vars
- R(g);SBLOCK::B(E)
- P(i);N_GUARD,S_CUTR(g)::QAB(F),XP(j)
- Refutation
- K(c);N_SPINP(d),N_SPINS(a),S_FLIGHT
- Try
- B(E);P_PINP(d)
- Threat
- QAR1(F),XP(d)
- Vars
- P(i);N_GUARD,S_CUTR(g)::QAB(F),XP(j)
- Refutation
- R(g);
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- P(b);::QAR1(F),XP(d)
- Refutation
- R(g);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- P(b);::QAR1(F),XP(d)
- Refutation
- P(i);XQ(F)
- Try
- Q(F);CHECK,XP(j)
- Refutation
- P(i);P_SPINP(i)
- Try
- Actual
- B(E);P_PINP(d)
- Threat
- QAR1(F),XP(d)
- Vars
- K(c);N_SPINP(d),P-FLIGHT,P_SPINP(i),XP(G)::QAB1(F),XP(d)
- R(g);SBLOCK::B(E)
- P(i);N_GUARD,S_CUTR(g)::QAB(F),XP(j)
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