MESON Chess Problem Database
Problem Display
PID: 173729 (8/5p2/nN3Bp1/2pR1pP1/B2n1K2/P1kp4/2p5/2Q5 w - - 0 1)
Boros, Sandor
Magyar Sakkvilag, 1926
#2
8 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sb4
- 2.Rxc5#
- 1...Sc7
- 2.Rxc5#
- 1...Sb8
- 2.Rxc5#
- 1...d2
- 2.Qxc2#
- 1...c4
- 2.Bxd4#
- 1...Sb4
- Tries
- 1.Kg3?
- 1...d2
- 2.Qxc2#
- 1...Sb4
- 2.Rxc5#
- 1...Sc7
- 2.Rxc5#
- 1...Sb8
- 2.Rxc5#
- 1...c4
- 2.Bxd4#
- 1...f4+!
- 1...d2
- 1.Sd7?
- 1...d2
- 2.Qxc2#
- 1...Sb4
- 2.Rxc5#
- 1...Sc7
- 2.Rxc5#
- 1...Sb8
- 2.Rxc5#
- 1...c4
- 2.Bxd4#
- 1...Kc4!
- 1...d2
- 1.Sa8?
- 1...d2
- 2.Qxc2#
- 1...Sb4
- 2.Rxc5#
- 1...Sc7
- 2.Rxc5#
- 1...Sb8
- 2.Rxc5#
- 1...c4
- 2.Bxd4#
- 1...Kc4!
- 1...d2
- 1.Sc8?
- 1...d2
- 2.Qxc2#
- 1...Sb4
- 2.Rxc5#
- 1...Sc7
- 2.Rxc5#
- 1...Sb8
- 2.Rxc5#
- 1...c4
- 2.Bxd4#
- 1...Kc4!
- 1...d2
- 1.Be5?
- 1...d2
- 2.Qxc2#
- 1...Sb4
- 2.Rxc5#
- 1...Sc7
- 2.Rxc5#
- 1...Sb8
- 2.Rxc5#
- 1...c4
- 2.Bxd4#
- 1...f6!
- 1...d2
- 1.Bg7?
- 1...d2
- 2.Qxc2#
- 1...Sb4
- 2.Rxc5#
- 1...Sc7
- 2.Rxc5#
- 1...Sb8
- 2.Rxc5#
- 1...c4
- 2.Bxd4#
- 1...f6!
- 1...d2
- 1.Bh8?
- 1...d2
- 2.Qxc2#
- 1...Sb4
- 2.Rxc5#
- 1...Sc7
- 2.Rxc5#
- 1...Sb8
- 2.Rxc5#
- 1...c4
- 2.Bxd4#
- 1...f6!
- 1...d2
- 1.Rxd4?
- threat
- 2.Sd5#
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Sb4
- 2.Rxb4#
- 2.Rc4#
- 2.Re4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Sc7
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...d2
- 2.Sd5#
- 2.Rxd2#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 2.Qa1#
- 2.Qxc2#
- 1...c4
- 2.Sd5#
- 2.Rxc4#
- 2.Re4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...cxd4!
- threat
- 1.Rxf5?
- 1...d2
- 2.Qxc2#
- 1...Sb4
- 2.Rxc5#
- 1...Sc7
- 2.Rxc5#
- 1...Sb8
- 2.Rxc5#
- 1...c4
- 2.Sd5#
- 1...gxf5!
- 1...d2
- 1.Kg3?
- Keys
- 1.Re5!
- 1...Se2+
- 2.Rxe2#
- 1...Se6+
- 2.Rxe6#
- 1...Sb3
- 2.Rxc5#
- 1...Sf3
- 2.Rxc5#
- 1...Sb5
- 2.Rxc5#
- 1...Sc6
- 2.Rxc5#
- 1...d2
- 2.Re3#
- 1...Sb4
- 2.Rxc5#
- 1...Sc7
- 2.Rxc5#
- 1...Sb8
- 2.Rxc5#
- 1...c4
- 2.Sd5#
- 1...Se2+
- 1.Re5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- S(g);N_GUARD::R(E),XP(e)
- P(c);N_GUARD::QAR1(A),XP(a)
- P(e);N_GUARD::B(H),XS(d)
- Tries
- Try
- K(D);S_FLIGHT
- Vars
- P(c);N_GUARD::QAR1(A),XP(a)
- S(g);N_GUARD::R(E),XP(e)
- P(e);N_GUARD::B(H),XS(d)
- Refutation
- P(f);CHECK
- Try
- S(G);
- Vars
- P(c);N_GUARD::QAR1(A),XP(a)
- S(g);N_GUARD::R(E),XP(e)
- P(e);N_GUARD,SBLOCK::B(H),XS(d)
- Refutation
- K(b);N_SPINS(d),P-FLIGHT
- Try
- S(G);
- Vars
- P(c);N_GUARD::QAR1(A),XP(a)
- S(g);N_GUARD::R(E),XP(e)
- P(e);N_GUARD,SBLOCK::B(H),XS(d)
- Refutation
- K(b);N_SPINS(d),P-FLIGHT
- Try
- S(G);
- Vars
- P(c);N_GUARD::QAR1(A),XP(a)
- S(g);N_GUARD::R(E),XP(e)
- P(e);N_GUARD,SBLOCK::B(H),XS(d)
- Refutation
- K(b);N_SPINS(d),P-FLIGHT
- Try
- B(H);
- Vars
- P(c);N_GUARD::QAR1(A),XP(a)
- S(g);N_GUARD::R(E),XP(e)
- P(e);N_GUARD::B(H),XS(d)
- Refutation
- P(i);
- Try
- B(H);
- Vars
- P(c);N_GUARD::QAR1(A),XP(a)
- S(g);N_GUARD::R(E),XP(e)
- P(e);N_GUARD::B(H),XS(d)
- Refutation
- P(i);N_SPINS(d)
- Try
- B(H);
- Vars
- P(c);N_GUARD::QAR1(A),XP(a)
- S(g);N_GUARD::R(E),XP(e)
- P(e);N_GUARD::B(H),XS(d)
- Refutation
- P(i);N_SPINS(d)
- Try
- R(E);XS(d)
- Threat
- DUALS(8)
- Refutation
- P(e);XR(E)
- Try
- R(E);XP(f)
- Vars
- P(c);N_GUARD::QAR1(A),XP(a)
- S(g);N_GUARD::R(E),XP(e)
- P(e);SBLOCK::S(G)
- Refutation
- P(h);XR(E)
- Try
- Actual
- R(E);N_PINS(d)
- Vars
- S(d);CHECK,OGATEB::B(H)+R(E),XS(d)
- S(d);::B(H)+R(E),DCHECK,XP(e)
- P(c);OGATEB::R(E)
- S(g);N_GUARD::R(E),XP(e)
- P(e);SBLOCK::S(G)
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