MESON Chess Problem Database
Problem Display
PID: 7989 (8/p7/k1K5/p7/2N5/3R4/r2PB3/8 w - - 0 1)
Rice, John Michael
Chess Problems for Solving, 1995
#2
5 + 4
SOLUTION
- SOUND
- Tries
- 1.Sb2?
- threat
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Rxb2
- 2.Rb3#
- 1...a4
- 2.Rd5#
- 1...Ra3
- 2.Rxa3#
- 2.Rb3#
- 2.Rc3#
- 1...Ra4!
- threat
- 1.Se3?
- threat
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Rc2+
- 2.Rc3#
- 1...Rxd2
- 2.Rxd2#
- 1...a4
- 2.Rd5#
- 1...Rb2
- 2.Rb3#
- 1...Ra3
- 2.Rxa3#
- 2.Rb3#
- 2.Rc3#
- 1...Ra4!
- threat
- 1.Se5?
- threat
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Rc2+
- 2.Rc3#
- 1...Rxd2
- 2.Rxd2#
- 1...a4
- 2.Rd5#
- 1...Rb2
- 2.Rb3#
- 1...Ra3
- 2.Rxa3#
- 2.Rb3#
- 2.Rc3#
- 1...Ra4!
- threat
- 1.Sd6?
- threat
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rd4#
- 2.Rd5#
- 1...Rc2+
- 2.Rc3#
- 1...Rxd2
- 2.Rxd2#
- 1...a4
- 2.Rd5#
- 1...Rb2
- 2.Rb3#
- 1...Ra3
- 2.Rxa3#
- 2.Rb3#
- 2.Rc3#
- 1...Ra4!
- threat
- 1.Ra3?
- threat
- 2.Sb2#
- 2.Se3#
- 2.Sxa5#
- 2.Se5#
- 2.Sb6#
- 2.Sd6#
- 1...Rxd2
- 2.Sxd2#
- 2.Rxa5#
- 1...Rxa3
- 2.Sxa3#
- 1...Rb2
- 2.Sxb2#
- 2.Rxa5#
- 1...Rc2
- 2.Rxa5#
- 1...a4!
- threat
- 1.Rd5?
- threat
- 2.Sb2#
- 2.Sa3#
- 2.Se3#
- 2.Sxa5#
- 2.Se5#
- 2.Sb6#
- 2.Sd6#
- 1...Rxd2
- 2.Sxd2#
- 2.Rxa5#
- 1...Rb2
- 2.Sxb2#
- 2.Rxa5#
- 1...Rc2
- 2.Rxa5#
- 1...Ra3
- 2.Sxa3#
- 1...a4
- 2.Sb2#
- 2.Sa3#
- 2.Se3#
- 2.Sa5#
- 2.Se5#
- 2.Sb6#
- 2.Sd6#
- 2.Ra5#
- 1...Ra4!
- threat
- 1.Sb2?
- Keys
- 1.Sa3!
- threat
- 2.Rb3#
- 2.Rc3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Rc2+
- 2.Rc3#
- 1...Rxd2
- 2.Rxd2#
- 1...Rxa3
- 2.Rxa3#
- 2.Rb3#
- 2.Rc3#
- 1...a4
- 2.Rd5#
- 1...Rb2
- 2.Rb3#
- threat
- 1.Sa3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(D);
- Threat
- DUALS(12)
- Vars
- R(a);XS(D)::B(B)+R(C)
- P(b);::B(B)+R(C)
- Refutation
- R(a);
- Try
- S(D);
- Threat
- DUALS(8)
- Vars
- R(a);CHECK::B(B)+R(C)
- R(a);OGATE,XP(A)::B(B)+R(C),XR(a)
- P(b);::B(B)+R(C)
- R(a);::B(B)+R(C)
- Refutation
- R(a);
- Try
- S(D);
- Threat
- DUALS(12)
- Vars
- R(a);CHECK::B(B)+R(C)
- R(a);OGATE,XP(A)::B(B)+R(C),XR(a)
- P(b);::B(B)+R(C)
- R(a);::B(B)+R(C)
- Refutation
- R(a);
- Try
- S(D);
- Threat
- DUALS(9)
- Vars
- R(a);CHECK::B(B)+R(C)
- R(a);OGATE,XP(A)::B(B)+R(C),XR(a)
- P(b);::B(B)+R(C)
- R(a);::B(B)+R(C)
- Refutation
- R(a);
- Try
- R(C);P_PINP(b)
- Threat
- DUALS(6)
- Vars
- R(a);N_SPINP(b),XR(C)::B(B)+S(D),XR(a)
- R(a);N_GUARD,P_PINS(D)::R1(C),XP(b)
- Refutation
- P(b);
- Try
- R(C);
- Threat
- DUALS(7)
- Vars
- R(a);N_GUARD,P_PINS(D)::R1(C),XP(b)
- R(a);::B(B)+S(D),XR(a)
- Refutation
- R(a);
- Try
- Actual
- S(D);
- Threat
- DUALS(11)
- Vars
- R(a);CHECK::B(B)+R(C)
- R(a);OGATE,XP(A)::B(B)+R(C),XR(a)
- P(b);::B(B)+R(C)
- R(a);::B(B)+R(C)
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