MESON Chess Problem Database

Problem Display
PID: 58875 (8/2N5/4R1K1/8/3kp3/3P4/3Q4/8 w - - 0 1)

Markovtsy, Vassyl Yuriovich

Troll, 1997

8/2N5/4R1K1/8/3kp3/3P4/3Q4/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qc3#
    • 1...exd3
      • 2.Qb4#
  • Tries
    • 1.Kf5?
      • 1...Kc5
        • 2.Qc3#
      • 1...exd3
        • 2.Qb4#
      • 1...e3!
    • 1.Kg5?
      • 1...Kc5
        • 2.Qc3#
      • 1...exd3
        • 2.Qb4#
      • 1...e3!
    • 1.Kh5?
      • 1...Kc5
        • 2.Qc3#
      • 1...exd3
        • 2.Qb4#
      • 1...e3!
    • 1.Kf6?
      • 1...Kc5
        • 2.Qc3#
      • 1...exd3
        • 2.Qb4#
      • 1...e3!
    • 1.Kh6?
      • 1...Kc5
        • 2.Qc3#
      • 1...exd3
        • 2.Qb4#
      • 1...e3!
    • 1.Kf7?
      • 1...Kc5
        • 2.Qc3#
      • 1...exd3
        • 2.Qb4#
      • 1...e3!
    • 1.Kg7?
      • 1...Kc5
        • 2.Qc3#
      • 1...exd3
        • 2.Qb4#
      • 1...e3!
    • 1.Kh7?
      • 1...Kc5
        • 2.Qc3#
      • 1...exd3
        • 2.Qb4#
      • 1...e3!
    • 1.Rd6+?
      • 1...Ke5
        • 2.Rd5#
        • 2.Qh2#
      • 1...Kc5!
    • 1.dxe4+?
      • 1...Kc5
        • 2.Qc3#
      • 1...Kc4!
  • Keys
    • 1.Rc6!
      • 1...Ke5
        • 2.d4#
      • 1...exd3
        • 2.Qf4#
      • 1...e3
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT::QAR2(A)
    • P(b);P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • P(b);P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
      • Refutation
        • P(b);
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • P(b);P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
      • Refutation
        • P(b);
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • P(b);P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
      • Refutation
        • P(b);
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • P(b);P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
      • Refutation
        • P(b);
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • P(b);P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
      • Refutation
        • P(b);
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • P(b);P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
      • Refutation
        • P(b);
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • P(b);P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
      • Refutation
        • P(b);
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • P(b);P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
      • Refutation
        • P(b);
    • Try
      • R(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(B);CHECK,XP(b)
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(C);
    • Vars
      • K(a);OGATE,S_FLIGHT::P(B)
      • P(b);OGATEB,P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
      • P(b);SBLOCK::QAB1(A)
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