MESON Chess Problem Database

Problem Display
PID: 78672 (7Q/2p5/p1p1K3/rkBnn1R1/p3Bp2/P7/2R5/3Nr3 w - - 0 1)

Touw Hian Bwee

3rd HM., Europe Echecs, 1972

7Q/2p5/p1p1K3/rkBnn1R1/p3Bp2/P7/2R5/3Nr3

#2

8 + 10

6352 A Collection of Chess Problems by Touw Hian Bwee 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Se3
      • 2.Qb8#
    • 1...Sb4
      • 2.Qb8#
    • 1...Sf6
      • 2.Qb8#
    • 1...Se7
      • 2.Qb8#
  • Keys
    • 1.Ba7!
      • threat
        • 2.Rc5#
      • 1...Sc3
        • 2.Bd3#
      • 1...c5
        • 2.Rxc5#
      • 1...Sb6
        • 2.Bxc6#
      • 1...Sd3
        • 2.Qb8#
      • 1...Sc4
        • 2.Sc3#
      • 1...Sd7
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • S(f);N_GUARD::QAR(H)
  • Actual
    • B(E);
    • Threat
      • R1(B)
    • Vars
      • S(f);P_SPINS(g)::B(D)
      • P(i);::R1(B),XP(i)
      • S(f);OGATE,P_SPINS(g)::B(D),XP(i)
      • S(g);P_PINB(D),P_SPINS(f)::QAR(H)
      • S(g);P_PINB(D),P_SPINS(f),SBLOCK::S(A)
      • S(g);OGATE,P_PINB(D),P_SPINS(f)::QAR(H)
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