MESON Chess Problem Database

Problem Display
PID: 107112 (8/3B4/2N1N3/2pk4/R1p5/8/3P1K2/3Q4 w - - 0 1)

Siklosi, Pal

Pest megyei Hirlap, 1980

8/3B4/2N1N3/2pk4/R1p5/8/3P1K2/3Q4

#2

7 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qf3#
    • 1...c3
      • 2.dxc3#
  • Tries
    • 1.Kg2?
      • 1...Ke4
        • 2.Qf3#
      • 1...c3
        • 2.dxc3#
      • 1...Kd6!
    • 1.Ke3?
      • 1...c3
        • 2.dxc3#
      • 1...Kd6!
    • 1.Kf3?
      • 1...c3
        • 2.dxc3#
      • 1...Kd6!
    • 1.Kg3?
      • 1...Ke4
        • 2.Qf3#
      • 1...c3
        • 2.dxc3#
      • 1...Kd6!
    • 1.Sf4+?
      • 1...Ke4
        • 2.Rxc4#
        • 2.Qf3#
      • 1...Kd6!
    • 1.Sg5?
      • 1...c3
        • 2.dxc3#
      • 1...Kd6!
    • 1.Sc7+?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kd6!
    • 1.Sg7?
      • 1...Ke4
        • 2.Qf3#
      • 1...c3
        • 2.dxc3#
      • 1...Kd6!
    • 1.Sed8?
      • 1...Ke4
        • 2.Qf3#
      • 1...c3
        • 2.dxc3#
      • 1...Kd6!
    • 1.Sf8?
      • 1...Ke4
        • 2.Qf3#
      • 1...c3
        • 2.dxc3#
      • 1...Kd6!
    • 1.Qc2?
      • 1...c3
        • 2.Qd3#
      • 1...Kd6!
    • 1.Qh5+?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kd6!
    • 1.Qb1?
      • 1...c3
        • 2.Qd3#
      • 1...Kd6!
    • 1.d3?
      • 1...Kd6
        • 2.dxc4#
      • 1...cxd3
        • 2.Qxd3#
      • 1...c3!
  • Keys
    • 1.d4!
      • 1...Ke4
        • 2.Qf3#
      • 1...Kd6
        • 2.dxc5#
      • 1...cxd4
        • 2.Qxd4#
      • 1...cxd4 ep
        • 2.Qxd3#
      • 1...c3
        • 2.dxc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);P_SPINP(a),S_FLIGHT::QAB1(A)
    • P(a);OGATE::QAR(A)+P(B),XP(a)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT::QAB1(A)
        • P(a);OGATE::QAR(A)+P(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • K(C);S_FLIGHT
      • Vars
        • P(a);OGATE::QAR(A)+P(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(a);OGATE::QAR(A)+P(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • K(C);S_FLIGHT
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT::QAB1(A)
        • P(a);OGATE::QAR(A)+P(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(F);CHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(F);
      • Vars
        • P(a);OGATE::QAR(A)+P(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(F);
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT::QAB1(A)
        • P(a);OGATE::QAR(A)+P(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(F);
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT::QAB1(A)
        • P(a);OGATE::QAR(A)+P(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(F);
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT::QAB1(A)
        • P(a);OGATE::QAR(A)+P(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(a);N_GUARD::QAR2(A)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(a);N_GUARD::QAR2(A)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • P(B);
      • Vars
        • K(c);P-FLIGHT::QAR(A)+P(B),XP(a)
        • P(a);OGATE,P_SPINP(a),XP(B)::QAR2(A),XP(a)
      • Refutation
        • P(a);
  • Actual
    • P(B);
    • Vars
      • K(c);S_FLIGHT::QAB1(A)
      • K(c);P-FLIGHT::QAR(A)+P(B)DCHECK,XP(b)
      • P(b);OGATE,P_SPINP(b),XP(B)::QAR1(A),XP(b)
      • P(a);EP,OGATEB,P_SPINP(a),XP(B)::QAR2(A),XP(a)
      • P(a);::QAR(A)+P(B),XP(b)
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