MESON Chess Problem Database
Problem Display
PID: 255655 (3B4/r3p3/4Q2K/3N4/8/4Rp2/1ppk4/2b1R3 w - - 0 1)
Udartsev, Valentin Filipovich
Buletin Problemistic, 1982
#2
6 + 7
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra5
- 2.Bxa5#
- 1...Rd7
- 2.Ba5#
- 1...Ra5
- Tries
- 1.Sc3?
- threat
- 2.Se4#
- 2.Qd5#
- 1...Ra5
- 2.Se4#
- 1...Ra6
- 2.Se4#
- 1...Rd7
- 2.Se4#
- 2.Qxd7#
- 1...Ra4!
- threat
- 1.Sb4?
- threat
- 2.Rd3#
- 2.Qd5#
- 1...Ra5
- 2.Rd3#
- 1...Ra6
- 2.Rd3#
- 1...Rd7
- 2.Qxd7#
- 1...Ra3!
- threat
- 1.Sf4?
- threat
- 2.Rd3#
- 2.Qd5#
- 1...Ra4
- 2.Rd3#
- 1...Ra5
- 2.Bxa5#
- 2.Rd3#
- 1...Ra6
- 2.Rd3#
- 1...Rd7
- 2.Ba5#
- 2.Qxd7#
- 1...Ra3!
- threat
- 1.Sb6?
- threat
- 2.Sc4#
- 2.Qd5#
- 1...Ra3
- 2.Sc4#
- 1...Ra5
- 2.Sc4#
- 1...Rc7
- 2.Qd5#
- 1...Rd7
- 2.Sc4#
- 2.Qxd7#
- 1...Ra4!
- threat
- 1.Sf6?
- threat
- 2.Se4#
- 2.Qd5#
- 1...exf6
- 2.Qd5#
- 2.Qd6#
- 1...Ra3
- 2.Se4#
- 1...Ra5
- 2.Se4#
- 2.Bxa5#
- 1...Rd7
- 2.Se4#
- 2.Ba5#
- 2.Qxd7#
- 1...Ra4!
- threat
- 1.R1e2+?
- 1...Kd1
- 2.Sc3#
- 1...fxe2!
- 1...Kd1
- 1.R3e2+?
- 1...fxe2
- 2.Qxe2#
- 1...Kd3+!
- 1...fxe2
- 1.Rxf3?
- threat
- 2.Qe2#
- 2.Qe3#
- 1...Ra3
- 2.Qe2#
- 1...Ra6!
- threat
- 1.Qa6?
- threat
- 2.Ba5#
- 2.Qd3#
- 1...b1Q
- 2.Qd3#
- 1...b1S
- 2.Qd3#
- 1...b1R
- 2.Qd3#
- 1...Rb7
- 2.Qd3#
- 1...Rc7
- 2.Qd3#
- 1...Rxa6+!
- threat
- 1.Sc3?
- Keys
- 1.Qd7!
- threat
- 2.Sc7#
- 1...Ra6+
- 2.Sb6#
- 1...Rxd7
- 2.Ba5#
- 1...Ra3
- 2.Sc3#
- 1...Ra4
- 2.Sb4#
- 1...Ra5
- 2.Bxa5#
- 1...Rc7
- 2.Sxc7#
- threat
- 1.Qd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD::B(F),XR(f)
- R(f);N_GUARD::B(F)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(f);::S(C)
- R(f);P_PINQ(D)::S(C)
- Refutation
- R(f);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(f);::R1(B)
- R(f);P_PINQ(D)::R1(B)
- R(f);N_GUARD::QAR(D),XR(f)
- Refutation
- R(f);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(f);::R1(B)
- R(f);P_PINQ(D)::R1(B)
- Refutation
- R(f);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(f);::S(C)
- R(f);::QAR(D)
- Refutation
- R(f);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(f);::S(C)
- Refutation
- R(f);
- Try
- R(A);CHECK
- Vars
- K(d);P-FLIGHT,P_PINR(B),S_CUTP(e)::S(C)
- Refutation
- P(e);XR(A)
- Try
- R(B);CHECK
- Vars
- P(e);OGATE,XR(B)::QAR1(D),XP(e)
- Refutation
- K(d);CHECK,P-FLIGHT
- Try
- R(B);XP(e)
- Threat
- DUALS(2)
- Vars
- R(f);::QAR1(D)
- Refutation
- R(f);P_PINQ(D)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- P(b);::QAR1(D)
- R(f);::QAR1(D)
- Refutation
- R(f);CHECK,XQ(D)
- Try
- Actual
- Q(D);
- Threat
- QAR(D)+S(C)
- Vars
- R(f);CHECK,N_GUARD::QAR(D)+S(C)
- R(f);N_GUARD,XQ(D)::B(F)
- R(f);N_GUARD::QAR(D)+S(C)
- R(f);N_GUARD::B(F),XR(f)
- R(f);::QAR(D)+S(C),XR(f)
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