MESON Chess Problem Database

Problem Display
PID: 86654 (8/n6B/1rp1K1nr/2P1N2N/Q1p1k3/1b4R1/8/3R4 w - - 0 1)

Bukovinski, Lajos

Problemas, 1967

8/n6B/1rp1K1nr/2P1N2N/Q1p1k3/1b4R1/8/3R4

#2

8 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd1
      • 2.Qxc4#
    • 1...Ba2
      • 2.Qc2#
    • 1...Bc2
      • 2.Qxc2#
      • 2.Qxc4#
  • Tries
    • 1.Sxc4?
      • threat
        • 2.Re3#
      • 1...Bxc4+
        • 2.Qxc4#
      • 1...Bxd1
        • 2.Sd2#
        • 2.Sd6#
      • 1...Rxh5!
    • 1.Sg4?
      • threat
        • 2.Sf2#
        • 2.Sgf6#
        • 2.Re3#
      • 1...Bxd1
        • 2.Qxc4#
      • 1...Rxh5!
    • 1.Sxg6?
      • threat
        • 2.Sf6#
      • 1...Rxg6+
        • 2.Bxg6#
      • 1...Bxd1
        • 2.Qxc4#
      • 1...Rxh5!
    • 1.Sd7?
      • threat
        • 2.Sdf6#
      • 1...Bxd1
        • 2.Qxc4#
      • 1...Rxh5!
    • 1.Sf7?
      • threat
        • 2.Sg5#
        • 2.Sd6#
      • 1...Bxd1
        • 2.Qxc4#
      • 1...Sb5
        • 2.Sg5#
      • 1...Sc8
        • 2.Sg5#
      • 1...Rxh5!
    • 1.Rgd3?
      • threat
        • 2.Re1#
      • 1...Bxd1
        • 2.Qxc4#
      • 1...Rxh5!
    • 1.Rf3?
      • threat
        • 2.Sg3#
        • 2.Sf6#
      • 1...Bxd1
        • 2.Qxc4#
      • 1...Rxh5!
  • Keys
    • 1.Rdd3!
      • threat
        • 2.Rge3#
        • 2.Rg4#
      • 1...Rxh5
        • 2.Rg4#
      • 1...Rxh7
        • 2.Rge3#
      • 1...Bd1
        • 2.Rge3#
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD,XR(A)::QAR2(C),XP(b)
    • B(a);OGATE::QAB(C)
  • Tries
    • Try
      • S(E);P_SPINS(E),XP(b)
      • Threat
        • R1(B)
      • Vars
        • B(a);CHECK,OGATE,P_SPINB(a),XS(E)::QAR2(C),XB(a)
      • Refutation
        • R(g);XS(F)
    • Try
      • S(E);
      • Threat
        • DUALS(3)
      • Vars
        • B(a);N_GUARD,XR(A)::QAR2(C),XP(b)
      • Refutation
        • R(g);XS(F)
    • Try
      • S(E);P_SPINS(E),XS(f)
      • Threat
        • S(F)
      • Vars
        • R(g);CHECK,OGATE,P_SPINR(g),XS(E)::B(H),XR(g)
        • B(a);N_GUARD,XR(A)::QAR2(C),XP(b)
      • Refutation
        • R(g);N_PINS(E),XS(F)
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • B(a);N_GUARD,XR(A)::QAR2(C),XP(b)
      • Refutation
        • R(g);XS(F)
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);N_GUARD,XR(A)::QAR2(C),XP(b)
        • S(h);::S(E)
      • Refutation
        • R(g);XS(F)
    • Try
      • R(B);
      • Threat
        • R(A)
      • Vars
        • B(a);N_GUARD,XR(A)::QAR2(C),XP(b)
      • Refutation
        • R(g);XS(F)
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);N_GUARD,XR(A)::QAR2(C),XP(b)
      • Refutation
        • R(g);XS(F)
  • Actual
    • R(A);
    • Threat
      • DUALS(2)
    • Vars
      • R(g);XS(F)::R(B)
      • R(g);N_SPINS(f),XB(H)::R1(B)
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