MESON Chess Problem Database
Problem Display
PID: 28347 (8/8/8/2Bp4/1Q1p2K1/3rk1P1/4p2p/1B5N w - - 0 1)
Dorokhov, Yuri Georgievich
Source?, 1966
#2
6 + 6
| 3242 | BCPS Rapid Solving (Cheltenham) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Ke4
- 2.Qxd4#
- 1...Ra3
- 2.Bxd4#
- 2.Qxd4#
- 1...Rb3
- 2.Bxd4#
- 2.Qxd4#
- 1...Rc3
- 2.Qxc3#
- 2.Qxd4#
- 1...e1Q
- 2.Qxe1#
- 1...e1S
- 2.Qxe1#
- 1...e1B
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...Ke4
- Tries
- 1.Bxd4+?
- 1...Ke4
- 2.Sf2#
- 1...Rxd4+!
- 1...Ke4
- 1.Bb6?
- 1...Ke4
- 2.Qe7#
- 2.Qxd4#
- 1...e1Q
- 2.Qxe1#
- 1...e1S
- 2.Qxe1#
- 1...e1B
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...Rd2
- 2.Qe7#
- 1...Ra3
- 2.Bxd4#
- 2.Qxd4#
- 1...Rb3
- 2.Bxd4#
- 2.Qxd4#
- 1...Rc3
- 2.Qxc3#
- 2.Qxd4#
- 1...Rd1!
- 1...Ke4
- 1.Bd6?
- 1...e1Q
- 2.Qxe1#
- 1...e1S
- 2.Qxe1#
- 1...e1B
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...Rd1
- 2.Bf4#
- 1...Rd2
- 2.Bf4#
- 1...Ra3
- 2.Bf4#
- 1...Rb3
- 2.Bf4#
- 1...Rc3
- 2.Bf4#
- 1...Ke4!
- 1...e1Q
- 1.Ba7?
- 1...Ke4
- 2.Qe7#
- 2.Qxd4#
- 1...e1Q
- 2.Qxe1#
- 1...e1S
- 2.Qxe1#
- 1...e1B
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...Rd2
- 2.Qe7#
- 1...Ra3
- 2.Bxd4#
- 2.Qxd4#
- 1...Rb3
- 2.Bxd4#
- 2.Qxd4#
- 1...Rc3
- 2.Qxc3#
- 2.Qxd4#
- 1...Rd1!
- 1...Ke4
- 1.Be7?
- 1...e1Q
- 2.Qxe1#
- 1...e1S
- 2.Qxe1#
- 1...e1B
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...Rd1
- 2.Bg5#
- 1...Rd2
- 2.Bg5#
- 1...Ra3
- 2.Bg5#
- 1...Rb3
- 2.Bg5#
- 1...Rc3
- 2.Bg5#
- 1...Ke4!
- 1...e1Q
- 1.Qe1?
- 1...Ke4
- 2.Qxe2#
- 1...Rd2
- 2.Qf2#
- 1...Ra3
- 2.Qc1#
- 1...Rb3
- 2.Qc1#
- 1...Rc3
- 2.Qxc3#
- 1...Rd1!
- 1...Ke4
- 1.Qc3?
- threat
- 2.Qxd3#
- 1...Ke4
- 2.Qxd4#
- 1...e1S
- 2.Qxe1#
- 1...Rxc3!
- threat
- 1.Bxd4+?
- Keys
- 1.Bf8!
- 1...Ke4
- 2.Qe7#
- 1...e1Q
- 2.Qxe1#
- 1...e1S
- 2.Qxe1#
- 1...e1B
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...Rd1
- 2.Bh6#
- 1...Rd2
- 2.Bh6#
- 2.Qe7#
- 1...Ra3
- 2.Bh6#
- 1...Rb3
- 2.Bh6#
- 1...Rc3
- 2.Bh6#
- 1...Ke4
- 1.Bf8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- K(d);P-FLIGHT,P_SPINR(c)::QAR1(D),XP(e)
- P(a);OGATEB::QAR2(D),XQ(a)
- P(a);OGATEB::QAR2(D),XS(a)
- P(a);OGATEB::QAR2(D),XB(a)
- P(a);OGATEB::QAR2(D),XR(a)
- Tries
- Try
- B(F);CHECK,XP(e)
- Vars
- K(d);P-FLIGHT,P_SPINR(c)::S(B)
- Refutation
- R(c);CHECK,XB(F)
- Try
- B(F);
- Vars
- P(a);OGATEB::QAR2(D),XQ(a)
- P(a);OGATEB::QAR2(D),XS(a)
- P(a);OGATEB::QAR2(D),XB(a)
- P(a);OGATEB::QAR2(D),XR(a)
- R(c);SBLOCK::QAR(D)
- Refutation
- R(c);
- Try
- B(F);N_PINP(e)
- Vars
- P(a);OGATEB::QAR2(D),XQ(a)
- P(a);OGATEB::QAR2(D),XS(a)
- P(a);OGATEB::QAR2(D),XB(a)
- P(a);OGATEB::QAR2(D),XR(a)
- R(c);::B(F)
- Refutation
- K(d);P-FLIGHT,P_SPINP(e),P_SPINR(c)
- Try
- B(F);
- Vars
- P(a);OGATEB::QAR2(D),XQ(a)
- P(a);OGATEB::QAR2(D),XS(a)
- P(a);OGATEB::QAR2(D),XB(a)
- P(a);OGATEB::QAR2(D),XR(a)
- R(c);SBLOCK::QAR(D)
- Refutation
- R(c);
- Try
- B(F);N_PINP(e)
- Vars
- P(a);OGATEB::QAR2(D),XQ(a)
- P(a);OGATEB::QAR2(D),XS(a)
- P(a);OGATEB::QAR2(D),XB(a)
- P(a);OGATEB::QAR2(D),XR(a)
- R(c);::B(F)
- Refutation
- K(d);P-FLIGHT,P_SPINP(e),P_SPINR(c)
- Try
- Q(D);N_PINP(e),P_PINP(a)
- Vars
- K(d);P-FLIGHT,P_SPINR(c)::QAR2(D),XP(a)
- R(c);SBLOCK::QAB1(D)
- R(c);N_GUARD::QAB(D)
- R(c);OGATEB::QAR2(D),XR(c)
- Refutation
- R(c);
- Try
- Q(D);P_PINR(c)
- Threat
- QAR1(D),XR(c)
- Vars
- K(d);N_SPINP(e),P-FLIGHT::QAR1(D),XP(e)
- P(a);OGATEB::QAR2(D),XS(a)
- Refutation
- R(c);N_SPINR(c),XQ(D)
- Try
- Actual
- B(F);N_PINP(e)
- Vars
- K(d);P-FLIGHT,P_SPINP(e),P_SPINR(c)::QAR(D)
- P(a);OGATEB::QAR2(D),XQ(a)
- P(a);OGATEB::QAR2(D),XS(a)
- P(a);OGATEB::QAR2(D),XB(a)
- P(a);OGATEB::QAR2(D),XR(a)
- R(c);::B(F)
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