MESON Chess Problem Database
Problem Display
PID: 206647 (2Q5/1p3K2/1P2p3/5kp1/2PRr3/4p1PR/4P3/8 w - - 0 1)
Maltsev, AA
64 Shakhmatnoe obozrenie, 1925
#2
8 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kg4
- 2.Qxe6#
- 1...Ke5
- 2.Qc5#
- 1...Rxd4
- 2.Qxe6#
- 1...Rf4
- 2.Qxe6#
- 1...Rg4
- 2.Qxe6#
- 1...Rh4
- 2.Qxe6#
- 1...Re5
- 2.g4#
- 1...g4
- 2.Rh5#
- 1...Kg4
- Tries
- 1.Rh1?
- 1...Ke5
- 2.Qc5#
- 1...Rxd4
- 2.Qxe6#
- 1...Rf4
- 2.Qxe6#
- 1...Rg4
- 2.Qxe6#
- 1...Rh4
- 2.Qxe6#
- 1...Re5
- 2.Rf1#
- 2.g4#
- 1...g4
- 2.Rh5#
- 1...Kg4!
- 1...Ke5
- 1.Rh2?
- 1...Ke5
- 2.Qc5#
- 1...Rxd4
- 2.Qxe6#
- 1...Rf4
- 2.Qxe6#
- 1...Rg4
- 2.Qxe6#
- 1...Rh4
- 2.Qxe6#
- 1...Re5
- 2.g4#
- 1...g4
- 2.Rh5#
- 1...Kg4!
- 1...Ke5
- 1.Rh4?
- 1...Ke5
- 2.Qc5#
- 1...Rxd4
- 2.Qxe6#
- 1...Rxh4
- 2.Qxe6#
- 1...g4
- 2.Rh5#
- 1...Rf4
- 2.Qxe6#
- 1...Rg4
- 2.Qxe6#
- 1...Re5
- 2.g4#
- 1...gxh4!
- 1...Ke5
- 1.Rh5?
- 1...Ke5
- 2.Qc5#
- 1...Rxd4
- 2.Qxe6#
- 1...Rf4
- 2.Qxe6#
- 1...Rg4
- 2.Qxe6#
- 1...Rh4
- 2.Qxe6#
- 1...Re5
- 2.Rf4#
- 2.g4#
- 1...Kg4!
- 1...Ke5
- 1.Rh6?
- 1...Ke5
- 2.Qc5#
- 1...Rxd4
- 2.Qxe6#
- 1...Rf4
- 2.Qxe6#
- 1...Rg4
- 2.Qxe6#
- 1...Rh4
- 2.Qxe6#
- 1...Re5
- 2.Rf6#
- 2.g4#
- 1...g4
- 2.Rh5#
- 1...Kg4!
- 1...Ke5
- 1.Rh7?
- 1...Ke5
- 2.Qc5#
- 1...Rxd4
- 2.Qxe6#
- 1...Rf4
- 2.Qxe6#
- 1...Rg4
- 2.Qxe6#
- 1...Rh4
- 2.Qxe6#
- 1...Re5
- 2.g4#
- 1...g4
- 2.Rh5#
- 1...Kg4!
- 1...Ke5
- 1.Rh8?
- 1...Ke5
- 2.Qc5#
- 1...Rxd4
- 2.Qxe6#
- 1...Rf4
- 2.Qxe6#
- 1...Rg4
- 2.Qxe6#
- 1...Rh4
- 2.Qxe6#
- 1...Re5
- 2.g4#
- 1...g4
- 2.Rh5#
- 1...Kg4!
- 1...Ke5
- 1.Qd7?
- 1...Kg4
- 2.Qxe6#
- 1...Rxd4
- 2.Qxe6#
- 1...Re5
- 2.g4#
- 1...Rf4
- 2.Qxe6#
- 1...Rg4
- 2.Qxe6#
- 1...Rh4
- 2.Qxe6#
- 1...g4
- 2.Rh5#
- 1...Ke5!
- 1...Kg4
- 1.Qc5+?
- 1...Re5
- 2.g4#
- 1...e5
- 2.Qc8#
- 1...Kg4!
- 1...Re5
- 1.Qc6?
- threat
- 2.Qxe4#
- 1...Kg4
- 2.Qxe6#
- 1...Ke5
- 2.Qxe4#
- 2.Qc5#
- 1...Rxd4
- 2.Qxe6#
- 1...Re5
- 2.Qf3#
- 2.g4#
- 1...Rf4
- 2.Qxe6#
- 1...Rg4
- 2.Qxe6#
- 1...Rh4
- 2.Qxe6#
- 1...g4
- 2.Rh5#
- 1...bxc6!
- threat
- 1.c5?
- 1...Kg4
- 2.Qxe6#
- 1...Rxd4
- 2.Qxe6#
- 1...Re5
- 2.g4#
- 1...Rf4
- 2.Qxe6#
- 1...Rg4
- 2.Qxe6#
- 1...Rh4
- 2.Qxe6#
- 1...g4
- 2.Rh5#
- 1...Ke5!
- 1...Kg4
- 1.Rh1?
- Keys
- 1.Qe8!
- 1...Kg4
- 2.Qxe6#
- 1...Ke5
- 2.Rd5#
- 1...Rxd4
- 2.Qxe6#
- 1...Re5
- 2.g4#
- 1...Rf4
- 2.Qxe6#
- 1...Rg4
- 2.Qxe6#
- 1...Rh4
- 2.Qxe6#
- 1...g4
- 2.Rh5#
- 1...e5
- 2.Qd7#
- 2.Qe6#
- 2.Qc8#
- 1...Kg4
- 1.Qe8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(c);P_SPINR(b),S_FLIGHT::QAB(H),XP(e)
- K(c);N_SPINP(e),P-FLIGHT::QAR2(H)
- R(b);N_GUARD,XR(E)::QAB1(H),XP(e)
- R(b);N_GUARD::QAB1(H),XP(e)
- R(b);N_GUARD,SBLOCK::P(B)
- P(d);OGATEB,SBLOCK::R(C)
- Tries
- Try
- R(C);
- Vars
- K(c);N_SPINP(e),P-FLIGHT::QAR2(H)
- R(b);N_GUARD,XR(E)::QAB1(H),XP(e)
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);OGATEB,SBLOCK::R(C)
- Refutation
- K(c);P_SPINR(b),S_FLIGHT
- Try
- R(C);
- Vars
- K(c);N_SPINP(e),P-FLIGHT::QAR2(H)
- R(b);N_GUARD,XR(E)::QAB1(H),XP(e)
- R(b);N_GUARD::QAB1(H),XP(e)
- R(b);N_GUARD,SBLOCK::P(B)
- P(d);OGATEB,SBLOCK::R(C)
- Refutation
- K(c);P_SPINR(b),S_FLIGHT
- Try
- R(C);
- Vars
- K(c);N_SPINP(e),P-FLIGHT::QAR2(H)
- R(b);N_GUARD,XR(E)::QAB1(H),XP(e)
- R(b);N_GUARD,XR(C)::QAB1(H),XP(e)
- P(d);OGATEB,SBLOCK::R(C)
- R(b);N_GUARD::QAB1(H),XP(e)
- R(b);N_GUARD,SBLOCK::P(B)
- Refutation
- P(d);XR(C)
- Try
- R(C);N_PINP(e),P_PINP(d)
- Vars
- K(c);P-FLIGHT::QAR2(H)
- R(b);N_GUARD,XR(E)::QAB1(H),XP(e)
- R(b);N_GUARD::QAB1(H),XP(e)
- Refutation
- K(c);N_SPINP(d),P_SPINP(e),P_SPINR(b),S_FLIGHT
- Try
- R(C);
- Vars
- K(c);N_SPINP(e),P-FLIGHT::QAR2(H)
- R(b);N_GUARD,XR(E)::QAB1(H),XP(e)
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);OGATEB,SBLOCK::R(C)
- Refutation
- K(c);P_SPINR(b),S_FLIGHT
- Try
- R(C);
- Vars
- K(c);N_SPINP(e),P-FLIGHT::QAR2(H)
- R(b);N_GUARD,XR(E)::QAB1(H),XP(e)
- R(b);N_GUARD::QAB1(H),XP(e)
- R(b);N_GUARD,SBLOCK::P(B)
- P(d);OGATEB,SBLOCK::R(C)
- Refutation
- K(c);P_SPINR(b),S_FLIGHT
- Try
- R(C);
- Vars
- K(c);N_SPINP(e),P-FLIGHT::QAR2(H)
- R(b);N_GUARD,XR(E)::QAB1(H),XP(e)
- R(b);N_GUARD::QAB1(H),XP(e)
- R(b);N_GUARD,SBLOCK::P(B)
- P(d);OGATEB,SBLOCK::R(C)
- Refutation
- K(c);P_SPINR(b),S_FLIGHT
- Try
- Q(H);
- Vars
- K(c);P_SPINR(b),S_FLIGHT::QAB(H),XP(e)
- R(b);N_GUARD,XR(E)::QAB1(H),XP(e)
- R(b);N_GUARD,SBLOCK::P(B)
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);OGATEB,SBLOCK::R(C)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT
- Try
- Q(H);CHECK,N_PINP(e)
- Vars
- R(b);P_SPINR(b)::P(B)
- P(e);OGATEB,P_SPINP(e),SBLOCK::QAB(H)
- Refutation
- K(c);P_SPINR(b),S_FLIGHT
- Try
- Q(H);N_PINP(e)
- Threat
- QAB1(H),XR(b)
- Vars
- K(c);P_SPINR(b),S_FLIGHT::QAB(H),XP(e)
- R(b);N_GUARD,XR(E)::QAB1(H),XP(e)
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);OGATEB,SBLOCK::R(C)
- Refutation
- P(f);XQ(H)
- Try
- P(D);
- Vars
- K(c);P_SPINR(b),S_FLIGHT::QAB(H),XP(e)
- R(b);N_GUARD,XR(E)::QAB1(H),XP(e)
- R(b);N_GUARD,SBLOCK::P(B)
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);OGATEB,SBLOCK::R(C)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT
- Try
- Actual
- Q(H);N_PINP(e)
- Vars
- K(c);P_SPINR(b),S_FLIGHT::QAB(H),XP(e)
- K(c);P-FLIGHT,P_SPINP(e)::R1(E)
- R(b);N_GUARD,XR(E)::QAB1(H),XP(e)
- R(b);N_GUARD,SBLOCK::P(B)
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);OGATEB,SBLOCK::R(C)
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