MESON Chess Problem Database
Problem Display
PID: 231497 (8/8/8/8/1p1Q1bp1/1R1rP1P1/1nNpk1K1/1N3R2 w - - 0 1)
Schlegl, Gyorgy
Magyar Sakkvilag, 1927
#2
8 + 7
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxb3
- 2.Qxd2#
- 1...Rc3
- 2.Qxd2#
- 1...Rxe3
- 2.Qxd2#
- 1...Rxd4
- 2.Sxd4#
- 1...Bxe3
- 2.Qxg4#
- 1...Bxg3
- 2.Qxg4#
- 1...Be5
- 2.Qxg4#
- 1...Bg5
- 2.Qxg4#
- 1...Bd6
- 2.Qxg4#
- 1...Bh6
- 2.Qxg4#
- 1...Bc7
- 2.Qxg4#
- 1...Bb8
- 2.Qxg4#
- 1...Sd1
- 2.Qxd3#
- 1...Sa4
- 2.Qxd3#
- 1...Sc4
- 2.Qxd3#
- 1...d1Q
- 2.Rf2#
- 1...d1S
- 2.Re1#
- 1...d1B
- 2.Re1#
- 2.Rf2#
- 1...d1R
- 2.Rf2#
- 1...Rxb3
- Tries
- 1.Qc4?
- 1...Bxe3
- 2.Qxg4#
- 1...Bxg3
- 2.Qxg4#
- 1...d1Q
- 2.Rf2#
- 1...d1S
- 2.Re1#
- 1...d1B
- 2.Re1#
- 2.Rf2#
- 1...d1R
- 2.Rf2#
- 1...Be5
- 2.Qxg4#
- 1...Bg5
- 2.Qxg4#
- 1...Bd6
- 2.Qxg4#
- 1...Bh6
- 2.Qxg4#
- 1...Bc7
- 2.Qxg4#
- 1...Bb8
- 2.Qxg4#
- 1...Sd1
- 2.Qxd3#
- 1...Sa4
- 2.Qxd3#
- 1...Sxc4!
- 1...Bxe3
- 1.Qd7?
- threat
- 2.Qxg4#
- 1...Rxb3
- 2.Qxd2#
- 1...Rxe3
- 2.Sd4#
- 2.Qxd2#
- 1...Rc3
- 2.Qxd2#
- 1...Rxd7!
- threat
- 1.exf4?
- threat
- 2.Qf2#
- 1...Rxb3
- 2.Qxd2#
- 1...Rxd4
- 2.Sxd4#
- 2.Re3#
- 1...d1S
- 2.Re1#
- 1...Rc3
- 2.Qxd2#
- 1...Re3
- 2.Rxe3#
- 2.Qxe3#
- 2.Qxd2#
- 1...Rf3
- 2.Qxd2#
- 1...Sd1
- 2.Qxd3#
- 1...Rxg3+!
- threat
- 1.gxf4?
- 1...Rxb3
- 2.Qxd2#
- 1...Rxe3
- 2.Rxe3#
- 2.Qxe3#
- 2.Qxd2#
- 1...Rxd4
- 2.Sxd4#
- 1...d1Q
- 2.Rf2#
- 1...d1S
- 2.Re1#
- 1...d1B
- 2.Re1#
- 2.Rf2#
- 1...d1R
- 2.Rf2#
- 1...Rc3
- 2.Qxd2#
- 1...Sd1
- 2.Qxd3#
- 1...Sa4
- 2.Qxd3#
- 1...Sc4
- 2.Qxd3#
- 1...g3!
- 1...Rxb3
- 1.Qc4?
- Keys
- 1.Qe4!
- 1...Rxb3
- 2.Sd4#
- 1...Rxe3
- 2.Sd4#
- 1...Bxe3
- 2.Qxg4#
- 1...Bxg3
- 2.Qxg4#
- 1...d1Q
- 2.Rf2#
- 1...d1S
- 2.Re1#
- 1...d1B
- 2.Re1#
- 2.Rf2#
- 1...d1R
- 2.Rf2#
- 1...Rc3
- 2.Sd4#
- 1...Rd4
- 2.Sxd4#
- 1...Rd5
- 2.exf4#
- 1...Rd6
- 2.exf4#
- 1...Rd7
- 2.exf4#
- 1...Rd8
- 2.exf4#
- 1...Be5
- 2.Qxg4#
- 1...Bg5
- 2.Qxg4#
- 1...Bd6
- 2.Qxg4#
- 1...Bh6
- 2.Qxg4#
- 1...Bc7
- 2.Qxg4#
- 1...Bb8
- 2.Qxg4#
- 1...Sd1
- 2.Qxd3#
- 1...Sa4
- 2.Qxd3#
- 1...Sc4
- 2.Qxd3#
- 1...Rxb3
- 1.Qe4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(d);OGATE,XR(E)::QAR1(H),XP(b)
- R(d);OGATE::QAR1(H),XP(b)
- R(d);OGATE,XP(F)::QAR1(H),XP(b)
- R(d);XQ(H)::S(C),XR(d)
- B(f);OGATE,XP(F)::QAB(H),XP(g)
- B(f);OGATE,XP(G)::QAB(H),XP(g)
- B(f);OGATE::QAB(H),XP(g)
- S(a);N_GUARD::QAB1(H),XR(d)
- P(b);SBLOCK::R1(B)
- P(b);N_GUARD::R1(B)
- Tries
- Try
- Q(H);P_PINR(d)
- Vars
- B(f);OGATE,XP(F)::QAB(H),XP(g)
- B(f);OGATE,XP(G)::QAB(H),XP(g)
- P(b);SBLOCK::R1(B)
- P(b);N_GUARD::R1(B)
- B(f);OGATE::QAB(H),XP(g)
- S(a);N_GUARD::QAB1(H),XR(d)
- Refutation
- S(a);N_SPINR(d),XQ(H)
- Try
- Q(H);
- Threat
- QAB(H),XP(g)
- Vars
- R(d);OGATE,XR(E)::QAR1(H),XP(b)
- R(d);OGATE::QAR1(H),XP(b)
- Refutation
- R(d);XQ(H)
- Try
- P(F);XB(f)
- Threat
- QAR1(H)
- Vars
- R(d);OGATE,XR(E)::QAR1(H),XP(b)
- P(b);N_GUARD::R1(B)
- R(d);OGATE::QAR1(H),XP(b)
- S(a);N_GUARD::QAB1(H),XR(d)
- Refutation
- R(d);CHECK,XP(G)
- Try
- P(G);XB(f)
- Vars
- R(d);OGATE,XR(E)::QAR1(H),XP(b)
- R(d);XQ(H)::S(C),XR(d)
- P(b);SBLOCK::R1(B)
- P(b);N_GUARD::R1(B)
- R(d);OGATE::QAR1(H),XP(b)
- S(a);N_GUARD::QAB1(H),XR(d)
- Refutation
- P(g);
- Try
- Actual
- Q(H);
- Vars
- R(d);N_GUARD,XR(E)::S(C)
- R(d);N_GUARD,P_SPINR(d),XP(F)::S(C)
- B(f);OGATE,P_SPINB(f),XP(F)::QAB(H),XP(g)
- B(f);OGATE,XP(G)::QAB(H),XP(g)
- P(b);SBLOCK::R1(B)
- P(b);N_GUARD::R1(B)
- R(d);N_GUARD::S(C)
- R(d);N_GUARD::S(C),XR(d)
- R(d);N_GUARD::QAR(H)+P(F),XB(f)
- B(f);OGATE::QAB(H),XP(g)
- S(a);N_GUARD::QAB1(H),XR(d)
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