MESON Chess Problem Database
Problem Display
PID: 17953 (4B3/1p6/1RN5/8/k1rbQ1K1/pN4p1/8/3r4 w - - 0 1)
Mansfield, Comins
Jerusalem Post, 1952
(First published on Fri Mar 28 1952)
#2
6 + 7
| 3550 | Complete Mansfield/II | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Rb4#
- 1...Rc2
- 2.Rb4#
- 1...Rc3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Rc5
- 2.Sxc5#
- 2.Rb4#
- 1...Ba1
- 2.Sc5#
- 2.Qxc4#
- 1...Bg1
- 2.Qxc4#
- 1...Bb2
- 2.Sc5#
- 2.Qxc4#
- 1...Bf2
- 2.Qxc4#
- 1...Bc3
- 2.Sc5#
- 1...Be3
- 2.Qxc4#
- 1...Bc5
- 2.Sxc5#
- 2.Scd4#
- 1...Be5
- 2.Sc5#
- 2.Qxc4#
- 1...Bxb6
- 2.Qxc4#
- 1...Bf6
- 2.Sc5#
- 2.Qxc4#
- 1...Bg7
- 2.Sc5#
- 2.Qxc4#
- 1...Bh8
- 2.Sc5#
- 2.Qxc4#
- 1...Rc1
- Tries
- 1.Sc5+?
- 1...Rxc5
- 2.Rb4#
- 1...Bxc5!
- 1...Rxc5
- 1.Qd5?
- threat
- 2.Qxc4#
- 2.Qa5#
- 2.Qb5#
- 1...Ba1+
- 2.Qxc4#
- 1...Bg1+
- 2.Qxc4#
- 1...Bb2+
- 2.Qxc4#
- 1...Bf2+
- 2.Qxc4#
- 1...Be3+
- 2.Qxc4#
- 1...Bc5+
- 2.Scd4#
- 1...Be5+
- 2.Qxc4#
- 1...Bxb6+
- 2.Qxc4#
- 1...Bf6+
- 2.Qxc4#
- 1...Bg7+
- 2.Qxc4#
- 1...Bh8+
- 2.Qxc4#
- 1...Rxc6
- 2.Qc4#
- 2.Qa5#
- 2.Qb5#
- 1...bxc6
- 2.Qxc4#
- 2.Qa5#
- 1...a2
- 2.Qa5#
- 1...Rdc1
- 2.Qa5#
- 2.Qb5#
- 1...Rcc1
- 2.Rb4#
- 2.Qa5#
- 2.Qb5#
- 1...Rc2
- 2.Rb4#
- 2.Qa5#
- 2.Qb5#
- 1...Rc3
- 2.Rb4#
- 2.Qa5#
- 2.Qb5#
- 1...Rb4
- 2.Sxb4#
- 2.Rxb4#
- 1...Rc5
- 2.Rb4#
- 1...Bc3+!
- threat
- 1.Sc5+?
- Keys
- 1.Qc2!
- threat
- 2.Sc5#
- 2.Qxc4#
- 1...Ba1+
- 2.Qxc4#
- 1...Bg1+
- 2.Qxc4#
- 1...Bb2+
- 2.Qxc4#
- 1...Bf2+
- 2.Qxc4#
- 1...Bc3+
- 2.Sbd4#
- 1...Be3+
- 2.Qxc4#
- 1...Bc5+
- 2.Scd4#
- 1...Be5+
- 2.Qxc4#
- 1...Bxb6+
- 2.Qxc4#
- 1...Bf6+
- 2.Qxc4#
- 1...Bg7+
- 2.Qxc4#
- 1...Bh8+
- 2.Qxc4#
- 1...Rxc2
- 2.Rb4#
- 1...Rxc6
- 2.Qc4#
- 1...bxc6
- 2.Qxc4#
- 1...a2
- 2.Qxa2#
- 1...Rc1
- 2.Sc5#
- 1...Rc3
- 2.Sc5#
- 2.Rb4#
- 1...Rb4
- 2.Sc5#
- 2.Sxb4#
- 2.Rxb4#
- 1...Rc5
- 2.Sxc5#
- 2.Rb4#
- threat
- 1.Qc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 11
- REMOVED MATES = 3
- Sets
- R(e);N_GUARD,P_SPINB(f)::R1(D)
- R(e);N_GUARD::R1(D),XR(e)
- B(f);OGATE,P_PINQ(B),P_SPINR(e)::QAR2(B),XR(e)
- B(f);N_GUARD,P_PINQ(B),P_SPINR(e)::S(A)
- B(f);OGATE,P_PINQ(B),P_SPINR(e),XR(D)::QAR2(B),XR(e)
- Tries
- Try
- S(A);CHECK
- Vars
- R(e);P_SPINB(f),XS(A)::R1(D)
- Refutation
- B(f);P_PINQ(B),P_SPINR(e),XS(A)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- B(f);CHECK::QAR2(B),XR(e)
- B(f);CHECK,S_CUTR(e)::B(F)+S(E)
- B(f);CHECK,XR(D)::QAR2(B),XR(e)
- P(b);::QAR1(B)
- R(e);N_GUARD::R1(D)
- Refutation
- B(f);CHECK
- Try
- Actual
- Q(B);
- Threat
- DUALS(2)
- Vars
- B(f);CHECK::QAR2(B),XR(e)
- B(f);CHECK,S_CUTR(e)::QAB(B)+S(A)
- B(f);CHECK,S_CUTR(e)::B(F)+S(E)
- B(f);CHECK,XR(D)::QAR2(B),XR(e)
- R(e);N_GUARD,XQ(B)::R1(D)
- R(e);P_SPINR(e),XS(E)::QAR2(B)
- P(g);P_SPINP(g),XS(E)::QAR2(B),XR(e)
- P(b);OGATEB::QAR2(B),XP(b)
- R(a);::QAB(B)+S(A),DCHECK
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