MESON Chess Problem Database
Problem Display
PID: 142755 (6B1/p1r5/6n1/2BR4/K1kp1n1Q/2p2R2/8/8 w - - 0 1)
Robert, Philippe
diagrammes, 1973
#2
6 + 7
SOLUTION
- SOUND
- Sets
- 1...Sg2
- 2.Qxd4#
- 1...Sd3
- 2.Qxd4#
- 1...Sh3
- 2.Qxd4#
- 1...Sxd5
- 2.Qxd4#
- 1...Sh5
- 2.Qxd4#
- 1...Sg2
- Tries
- 1.Ba3?
- threat
- 2.Rc5#
- 1...Se6
- 2.Rxd4#
- 1...Rc5
- 2.Rxc5#
- 1...d3
- 2.Rd7#
- 1...Sxd5!
- threat
- 1.Bb6?
- threat
- 2.Rxd4#
- 2.Rc5#
- 1...Sxd5
- 2.Qxd4#
- 1...Se6
- 2.Rxd4#
- 1...Rc5
- 2.Rxc5#
- 1...d3
- 2.Rd4#
- 2.Rd7#
- 1...axb6!
- threat
- 1.Bxa7?
- threat
- 2.Rxd4#
- 2.Rc5#
- 1...Sxd5
- 2.Qxd4#
- 1...Se6
- 2.Rxd4#
- 1...Rc5
- 2.Rxc5#
- 1...d3
- 2.Rd4#
- 2.Rd7#
- 1...Rxa7+!
- threat
- 1.Re5+?
- 1...Sd5
- 2.Qxd4#
- 1...Se6
- 2.Bxe6#
- 2.Qxd4#
- 1...Rf7!
- 1...Sd5
- 1.Rf5+?
- 1...Sd5
- 2.Qxd4#
- 1...Se6
- 2.Bxe6#
- 2.Qxd4#
- 1...Rf7!
- 1...Sd5
- 1.Rg5+?
- 1...Sd5
- 2.Qxd4#
- 1...Se6
- 2.Bxe6#
- 2.Qxd4#
- 1...Rf7!
- 1...Sd5
- 1.Rh5+?
- 1...Sd5
- 2.Qxd4#
- 1...Se6
- 2.Bxe6#
- 2.Qxd4#
- 1...Rf7!
- 1...Sd5
- 1.Rd7+?
- 1...Sd5
- 2.Qxd4#
- 1...Se6
- 2.Qxd4#
- 1...Kxc5!
- 1...Sd5
- 1.Qf2?
- threat
- 2.Qxd4#
- 2.Qa2#
- 1...Sxd5
- 2.Qxd4#
- 1...Se6
- 2.Qa2#
- 1...Rb7
- 2.Qxd4#
- 1...c2
- 2.Qxd4#
- 2.Qxc2#
- 1...d3
- 2.Qd4#
- 2.Qa2#
- 1...Se2!
- threat
- 1.Qg5?
- threat
- 2.Rxd4#
- 1...Rxc5
- 2.Rxc5#
- 1...Sxd5
- 2.Qxd5#
- 1...d3
- 2.Rd4#
- 1...Se5!
- threat
- 1.Qf6?
- threat
- 2.Qxd4#
- 2.Qa6#
- 1...Rxc5
- 2.Rxd4#
- 2.Qxd4#
- 1...Sxd5
- 2.Qxd4#
- 1...Rf7
- 2.Qxd4#
- 1...Rc6
- 2.Qxd4#
- 1...Rb7
- 2.Qxd4#
- 1...Se2
- 2.Qa6#
- 1...Se5
- 2.Qa6#
- 1...d3
- 2.Qd4#
- 2.Qa6#
- 1...a6
- 2.Qxd4#
- 2.Qxa6#
- 1...Se6!
- threat
- 1.Ba3?
- Keys
- 1.Bb4!
- threat
- 2.Rc5#
- 1...Sxd5
- 2.Rxc3#
- 1...Se6
- 2.Rxd4#
- 1...Rc5
- 2.Rxc5#
- 1...d3
- 2.Rd7#
- threat
- 1.Bb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- S(d);OGATE,P_SPINP(c)::QAR1(C),XP(c)
- S(d);OGATE,P_SPINP(c),P_SPINS(d),XR(E)::QAR1(C),XP(c)
- Tries
- Try
- B(D);
- Threat
- B(F)+R(E),DCHECK
- Vars
- S(d);P_SPINP(c)::R1(E),XP(c)
- R(g);::B(F)+R(E),DCHECK,XR(g)
- P(c);P_SPINS(d)::B(F)+R(E)
- Refutation
- S(d);P_SPINP(c),P_SPINS(d),XR(E)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- S(d);OGATE,P_SPINP(c),P_SPINS(d),XR(E)::QAR1(C),XP(c)
- S(d);P_SPINP(c)::R1(E),XP(c)
- R(g);::B(F)+R(E),DCHECK,XR(g)
- Refutation
- P(f);XB(D)
- Try
- B(D);XP(f)
- Threat
- DUALS(2)
- Vars
- S(d);OGATE,P_SPINP(c),P_SPINS(d),XR(E)::QAR1(C),XP(c)
- S(d);P_SPINP(c)::R1(E),XP(c)
- R(g);::B(F)+R(E),DCHECK,XR(g)
- Refutation
- R(g);CHECK,XB(D)
- Try
- R(E);CHECK
- Vars
- S(d);OGATE,P_SPINP(c),P_SPINS(d)::QAR1(C),XP(c)
- Refutation
- R(g);P_SPINR(g)
- Try
- R(E);CHECK
- Vars
- S(d);OGATE,P_SPINP(c),P_SPINS(d)::QAR1(C),XP(c)
- Refutation
- R(g);P_SPINR(g)
- Try
- R(E);CHECK
- Vars
- S(d);OGATE,P_SPINP(c),P_SPINS(d)::QAR1(C),XP(c)
- Refutation
- R(g);P_SPINR(g)
- Try
- R(E);CHECK
- Vars
- S(d);OGATE,P_SPINP(c),P_SPINS(d)::QAR1(C),XP(c)
- Refutation
- R(g);P_SPINR(g)
- Try
- R(E);CHECK
- Vars
- S(d);OGATE,P_SPINP(c),P_SPINS(d)::QAR1(C),XP(c)
- Refutation
- K(b);P-FLIGHT,XB(D)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- S(d);P_SPINS(d),XR(E)::QAR1(C),XP(c)
- S(d);::QAB(C)
- R(g);::QAR1(C),XP(c)
- Refutation
- S(d);
- Try
- Q(C);
- Threat
- B(F)+R(E),DCHECK,XP(c)
- Vars
- R(g);OGATE,XB(D)::B(F)+R(E),DCHECK,XR(g)
- S(d);OGATE,P_SPINS(d),XR(E)::QAB1(C),XS(d)
- P(c);::B(F)+R(E),DCHECK
- Refutation
- S(e);
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- S(d);P_SPINS(d),XR(E)::QAR1(C),XP(c)
- R(g);::QAR1(C),XP(c)
- S(d);::QAB(C)
- S(e);::QAB(C)
- Refutation
- S(d);
- Try
- Actual
- B(D);
- Threat
- B(F)+R(E),DCHECK
- Vars
- S(d);P_SPINP(c),P_SPINS(d),XR(E)::R1(A),XP(a)
- S(d);P_SPINP(c)::R1(E),XP(c)
- R(g);::B(F)+R(E),DCHECK,XR(g)
- P(c);P_SPINS(d)::B(F)+R(E)
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