MESON Chess Problem Database

Problem Display
PID: 17439 (8/B1p1bR2/r7/P2n1Pr1/Q1P1kP2/2pN1p1N/3R1Kb1/8 w - - 0 1)

Hassberg, Eric Manfred

White, Alain Campbell

South African Chess Magazine, 1946

8/B1p1bR2/r7/P2n1Pr1/Q1P1kP2/2pN1p1N/3R1Kb1/8

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Sc5#
    • 1...Ba3
      • 2.Sxg5#
    • 1...Bb4
      • 2.Sxg5#
    • 1...Bc5+
      • 2.Sxc5#
    • 1...Bd6
      • 2.Sxg5#
    • 1...Bd8
      • 2.Sc5#
    • 1...Bf8
      • 2.Sxg5#
  • Tries
    • 1.cxd5+?
      • 1...Bb4
        • 2.Sc5#
      • 1...Kxd5!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qxd5#
      • 1...Bc5+
        • 2.Sxc5#
      • 1...Rxf5
        • 2.Qxf5#
      • 1...Rxa5
        • 2.Qe6#
      • 1...Sxf4
        • 2.Qd4#
      • 1...Rd6
        • 2.Sc5#
      • 1...Bd6
        • 2.Sxg5#
      • 1...Se3
        • 2.Qd4#
      • 1...Sb4
        • 2.Qd4#
      • 1...Sb6
        • 2.Rxe7#
      • 1...Sf6
        • 2.Sxg5#
      • 1...c6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 4
  • Sets
    • R(g);S_CUTB(i)::S(C)
    • B(i);N_GUARD::S(D),XR(f)
    • B(i);CHECK,N_GUARD::S(C),XB(i)
    • B(i);N_GUARD::S(C)
  • Tries
    • Try
      • P(F);CHECK,XS(e)
      • Vars
        • B(i);P_SPINB(i)::S(C)
      • Refutation
        • K(d);S_FLIGHT,XP(F)
  • Actual
    • Q(E);
    • Threat
      • QAB1(E),XS(e)
    • Vars
      • B(i);CHECK,N_GUARD::S(C),XB(i)
      • R(f);OGATE,XP(I)::QAB1(E),XR(f)
      • R(g);N_GUARD,XP(H)::QAR2(E)
      • S(e);OGATE,XP(G)::QAR1(E)
      • R(g);S_CUTB(i)::S(C)
      • B(i);N_GUARD::S(D),XR(f)
      • S(e);OGATE::QAR1(E)
      • S(e);N_GUARD,S_CUTR(g)::R(K),XB(i)
      • S(e);S_CUTB(i)::S(D),XR(f)
      • P(h);S_CUTR(g)::QAR2(E)
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