MESON Chess Problem Database

Problem Display
PID: 143918 (8/3pBK2/1p3Q2/1p1kPp2/R2P2p1/bN4P1/1N4R1/1n1q3B w - - 0 1)

Edwards, Brian

British Chess Magazine, 1992

8/3pBK2/1p3Q2/1p1kPp2/R2P2p1/bN4P1/1N4R1/1n1q3B

#2

11 + 9

15235 Bedwards Best (Brian Edwards) 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Re2#
    • 1...Qc2
      • 2.Rxc2#
    • 1...Qe2
      • 2.Rxe2#
    • 1...Qc1
      • 2.Rg1#
    • 1...Qg1
      • 2.Rxg1#
    • 1...Qd2
      • 2.Rxd2#
      • 2.Re2#
      • 2.Rf2#
    • 1...Qxd4
      • 2.Rd2#
      • 2.Rxd4#
  • Tries
    • 1.Sxd1?
      • threat
        • 2.Rg1#
        • 2.Ra2#
        • 2.Rb2#
        • 2.Rc2#
        • 2.Rd2#
        • 2.Re2#
        • 2.Rf2#
        • 2.Rh2#
      • 1...Ke4
        • 2.Rd2#
      • 1...bxa4
        • 2.Rc2#
      • 1...Bb4
        • 2.Rc2#
      • 1...b4
        • 2.Rc2#
      • 1...Bb2
        • 2.Rg1#
        • 2.Rxb2#
        • 2.Rc2#
        • 2.Rd2#
        • 2.Re2#
        • 2.Rf2#
        • 2.Rh2#
      • 1...Sd2
        • 2.Sc3#
        • 2.Rxd2#
      • 1...Sc3
        • 2.Sxc3#
      • 1...f4!
    • 1.Qxb6?
      • threat
        • 2.Qb7#
      • 1...Ke4
        • 2.Re2#
      • 1...Qc2
        • 2.Rxc2#
      • 1...Qc1
        • 2.Rg1#
      • 1...Qxd4!
    • 1.Qc6+?
      • 1...Kxc6
        • 2.Rc2#
      • 1...dxc6!
    • 1.Qd6+?
      • 1...Ke4
        • 2.Re2#
      • 1...Bxd6!
    • 1.Qe6+?
      • 1...Ke4
        • 2.Re2#
      • 1...dxe6!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qa8#
      • 1...Ke4
        • 2.Re2#
      • 1...Kc6
        • 2.Rc2#
      • 1...Qxd4
        • 2.Rd2#
      • 1...Qc2
        • 2.Rxc2#
      • 1...Qc1
        • 2.Rg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(f);S_FLIGHT::B(A)+R(C),DCHECK
    • Q(b);N_GUARD::B(A)+R(C),XQ(b)
    • Q(b);N_GUARD::B(A)+R(C)
  • Tries
    • Try
      • S(B);XQ(b)
      • Threat
        • DUALS(8)
      • Vars
        • K(f);S_FLIGHT::B(A)+R(C)
        • P(e);XR(F)::B(A)+R(C)
        • B(c);::B(A)+R(C)
        • P(e);::B(A)+R(C)
        • S(a);N_GUARD::S(B),XS(a)
      • Refutation
        • P(g);
    • Try
      • Q(I);XP(h)
      • Threat
        • QAB(I)
      • Vars
        • K(f);S_FLIGHT::B(A)+R(C),DCHECK
        • Q(b);N_GUARD::B(A)+R(C),XQ(b)
        • Q(b);N_GUARD::B(A)+R(C)
      • Refutation
        • Q(b);XP(G)
    • Try
      • Q(I);CHECK
      • Vars
        • K(f);S_FLIGHT,XQ(I)::B(A)+R(C),DCHECK
      • Refutation
        • P(i);XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • K(f);S_FLIGHT::B(A)+R(C),DCHECK
      • Refutation
        • B(c);XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • K(f);S_FLIGHT::B(A)+R(C),DCHECK
      • Refutation
        • P(i);XQ(I)
  • Actual
    • Q(I);
    • Threat
      • QAB(I)
    • Vars
      • K(f);S_FLIGHT::B(A)+R(C),DCHECK
      • Q(b);N_GUARD,XP(G)::B(A)+R(C)
      • Q(b);N_GUARD::B(A)+R(C),XQ(b)
      • Q(b);N_GUARD::B(A)+R(C)
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