MESON Chess Problem Database

Problem Display
PID: 63183 (2Q5/3r1p1B/Rb6/p3P2p/4P1p1/R2NNkP1/4pPp1/4K1n1 w - - 0 1)

Bakker, Peter Arie

1st Prize, Het Parool, 1972

2Q5/3r1p1B/Rb6/p3P2p/4P1p1/R2NNkP1/4pPp1/4K1n1

#2

11 + 10

3753 FIDE Album (1971-1973) 1978

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd3
      • 2.Qf5#
    • 1...Rd4
      • 2.Qf5#
    • 1...Rd5
      • 2.Qf5#
    • 1...Rd6
      • 2.Qf5#
    • 1...Ra7
      • 2.Qf5#
    • 1...Rb7
      • 2.Qf5#
    • 1...Rc7
      • 2.Qf5#
    • 1...Re7
      • 2.Qf5#
    • 1...Rd8
      • 2.Qf5#
    • 1...Bd4
      • 2.Rf6#
    • 1...Bc5
      • 2.Rf6#
    • 1...Ba7
      • 2.Rf6#
    • 1...Bc7
      • 2.Rf6#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Sc5#
      • 1...Bxf2+
        • 2.Sxf2#
      • 1...Rxd5
        • 2.Qf5#
      • 1...Bd4
        • 2.Rf6#
      • 1...Bc5
        • 2.Sxc5#
        • 2.Rf6#
      • 1...Be3!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sd5#
      • 1...Rd1+
        • 2.Sxd1#
      • 1...Bxc5
        • 2.Rf6#
      • 1...Rd2
        • 2.Qf5#
      • 1...Rd3
        • 2.Qf5#
      • 1...Rd4
        • 2.Qf5#
      • 1...Rd5
        • 2.Sxd5#
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • R(i);OGATE,XS(D)::QAR2(K)
    • R(i);OGATE::QAR2(K)
    • B(h);OGATE::R(I)
  • Tries
    • Try
      • S(E);
      • Threat
        • R(C)+S(D)
      • Vars
        • B(h);CHECK,XP(B)::R(C)+S(D),XB(h)
        • R(i);OGATE,XS(E)::QAR2(K)
        • B(h);OGATE::R(I)
      • Refutation
        • B(h);
  • Actual
    • S(D);
    • Threat
      • R(C)+S(E)
    • Vars
      • R(i);CHECK,N_GUARD::R(C)+S(E),XR(i)
      • B(h);OGATE,XS(D)::R(I)
      • R(i);OGATE::QAR2(K)
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