MESON Chess Problem Database

Problem Display
PID: 61066 (8/1N2p3/1P2B1p1/1PR3p1/3k1bR1/p1N2K2/pn2PP2/B7 w - - 0 1)

Touw Hian Bwee

4th Prize, Magyar Sakkelet, 1972

8/1N2p3/1P2B1p1/1PR3p1/3k1bR1/p1N2K2/pn2PP2/B7

#2

11 + 8

3753 FIDE Album (1971-1973) 1978
56 The Problemist 1981

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Sxd1#
    • 1...Sd3
      • 2.e3#
    • 1...Sa4
      • 2.Sxa4#
    • 1...Sc4
      • 2.Rd5#
  • Tries
    • 1.Bf5?
      • threat
        • 2.e3#
      • 1...Sd1
        • 2.Sxd1#
      • 1...Sc4
        • 2.Rd5#
      • 1...gxf5!
    • 1.Rcxg5?
      • 1...Sd1
        • 2.Sxd1#
        • 2.Rxf4#
      • 1...Sd3
        • 2.e3#
      • 1...Sa4
        • 2.Sxa4#
        • 2.Rxf4#
      • 1...Sc4
        • 2.Rxf4#
        • 2.Rd5#
      • 1...Kxc3!
  • Keys
    • 1.Se4!
      • 1...Bc1
        • 2.Sd2#
      • 1...Bd2
        • 2.Sxd2#
      • 1...Bh2
        • 2.Sg3#
      • 1...Be3
        • 2.fxe3#
      • 1...Bg3
        • 2.Sxg3#
      • 1...Be5
        • 2.Rc4#
      • 1...Bd6
        • 2.Sexd6#
      • 1...Bc7
        • 2.Sed6#
      • 1...Bb8
        • 2.Sed6#

There are these versions: 78780

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 4
  • Sets
    • S(b);::B(A)+S(D),XS(b)
    • S(b);SBLOCK::P(B)
    • S(b);SBLOCK::R1(H)
  • Tries
    • Try
      • B(J);
      • Threat
        • P(B)
      • Vars
        • S(b);::B(A)+S(D),XS(b)
        • S(b);SBLOCK::R1(H)
      • Refutation
        • P(g);XB(J)
    • Try
      • R(H);XP(f)
      • Vars
        • S(b);SBLOCK::P(B)
      • Refutation
        • K(d);N_SPINB(e),P_SPINS(b),S_FLIGHT,XS(D)
  • Actual
    • S(D);N_PINB(e),P_PINS(b)
    • Vars
      • B(e);::R(F)+S(D)
      • B(e);::R(F)+S(D),XB(e)
      • B(e);OGATE::P(C),XB(e)
      • B(e);SBLOCK::R1(H)
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