MESON Chess Problem Database
Problem Display
PID: 142586 (6B1/3R4/3r4/2P1kp1N/8/2P5/2Q3bK/8 w - - 0 1)
Popa, Nicolae
Phenix, 1990
#2
7 + 4
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Re7#
- 1...Rd2
- 2.Re7#
- 1...Rd3
- 2.Re7#
- 1...Rd4
- 2.Re7#
- 2.cxd4#
- 1...Rd5
- 2.Re7#
- 1...Bh3
- 2.Qe2#
- 1...Rd1
- Tries
- 1.Qa4?
- threat
- 2.Qf4#
- 1...Rd4
- 2.Re7#
- 2.Qxd4#
- 1...f4
- 2.Qxf4#
- 1...Be4!
- threat
- 1.Qc1?
- threat
- 2.Qf4#
- 1...f4
- 2.Qxf4#
- 1...Rd2
- 2.Re7#
- 1...Rd4
- 2.Re7#
- 1...Ke4!
- threat
- 1.Qf2?
- threat
- 2.Qf4#
- 1...Ke4
- 2.Qe2#
- 1...f4
- 2.Qxf4#
- 1...Rd4
- 2.Re7#
- 2.Qxd4#
- 1...Bf3!
- threat
- 1.Qxg2?
- threat
- 2.Qe2#
- 1...Rd2
- 2.Re7#
- 1...Rd3
- 2.Re7#
- 1...Rd4
- 2.Re7#
- 2.cxd4#
- 1...f4!
- threat
- 1.Qa4?
- Keys
- 1.Qd2!
- threat
- 2.Qf4#
- 1...Ke4
- 2.Qe2#
- 1...Rxd2
- 2.Re7#
- 1...f4
- 2.Qxf4#
- 1...Rd4
- 2.Re7#
- 2.Qxd4#
- threat
- 1.Qd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- R(d);N_GUARD::R(F)
- B(a);N_GUARD::QAR(A)
- Tries
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- P(c);::QAB1(A),XP(c)
- Refutation
- B(a);
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- P(c);::QAB1(A),XP(c)
- R(d);N_GUARD::R(F)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- K(b);P-FLIGHT::QAR2(A)
- P(c);::QAB1(A),XP(c)
- Refutation
- B(a);
- Try
- Q(A);XB(a)
- Threat
- QAR(A)
- Vars
- R(d);N_GUARD,P_PINQ(A)::R(F)
- R(d);N_GUARD::R(F)
- Refutation
- P(c);
- Try
- Actual
- Q(A);
- Threat
- QAB1(A)
- Vars
- K(b);P-FLIGHT::QAR2(A)
- R(d);N_GUARD,XQ(A)::R(F)
- P(c);::QAB1(A),XP(c)
Developed and maintained by Brian Stephenson.
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