MESON Chess Problem Database

Problem Display
PID: 272692 (3N4/Qr6/1PK5/1p2P3/3kP2R/1b2p3/1P2P2B/2R1Nnn1 w - - 0 1)

Bakcsi, Gyorgy

Schakend Nederland, 1974

3N4/Qr6/1PK5/1p2P3/3kP2R/1b2p3/1P2P2B/2R1Nnn1

#2

12 + 7

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb6+
      • 2.Qxb6#
    • 1...Rc7+
      • 2.bxc7#
    • 1...Rd7
      • 2.b7#
    • 1...Re7
      • 2.b7#
    • 1...Rf7
      • 2.b7#
    • 1...Rg7
      • 2.b7#
    • 1...Rh7
      • 2.b7#
    • 1...Rb8
      • 2.b7#
    • 1...Bd1
      • 2.Se6#
    • 1...Ba4
      • 2.Se6#
    • 1...Bc4
      • 2.Sc2#
    • 1...Bd5+
      • 2.exd5#
    • 1...Be6
      • 2.Sxe6#
    • 1...Sf3
      • 2.Sxf3#
    • 1...Sh3
      • 2.Sf3#
  • Tries
    • 1.Rc4+?
      • 1...Bxc4
        • 2.Sc2#
      • 1...bxc4
        • 2.Se6#
      • 1...Kxc4!
  • Keys
    • 1.Kxb5!
      • threat
        • 2.Sc6#
      • 1...Rxb6+
        • 2.Qxb6#
      • 1...Ba4+
        • 2.Qxa4#
      • 1...Bc4+
        • 2.Rxc4#
      • 1...Rc7
        • 2.bxc7#
      • 1...Bd5
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 10
  • Sets
    • R(g);CHECK,OGATE,P_SPINR(g),XP(I)::QAB(K),XR(g)
    • R(g);CHECK,OGATE::QAB(K)+P(I),XR(g)
    • R(g);OGATE::QAB(K)+P(I)
    • B(c);N_GUARD::S(L)
    • B(c);N_GUARD,SBLOCK::S(B)
    • B(c);CHECK,OGATE::R(G)+P(F),XB(c)
    • B(c);N_GUARD::S(L),XB(c)
    • S(b);N_GUARD::S(B),XS(b)
    • S(b);N_GUARD::S(B)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • B(c);SBLOCK,XR(A)::S(B)
        • P(f);SBLOCK,XR(A)::S(L)
      • Refutation
        • K(e);P-FLIGHT,XR(A)
  • Actual
    • K(J);P_SPINP(I),S_FLIGHT,XP(f)
    • Threat
      • S(L)
    • Vars
      • R(g);CHECK,OGATE,P_SPINR(g),XP(I)::QAB(K),XR(g)
      • B(c);CHECK,N_GUARD::QAR(K),XB(c)
      • B(c);CHECK,N_GUARD::R1(A),XB(c)
      • R(g);N_PINP(I)::QAB(K)+P(I),XR(g)
      • B(c);N_GUARD::S(B)
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Developed and maintained by Brian Stephenson.
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