MESON Chess Problem Database

Problem Display
PID: 75640 (8/8/8/7K/6N1/4Q1p1/6kp/7R w - - 0 1)

Barthelemy, Edmond

Miniatures Strategiques, 1935

8/8/8/7K/6N1/4Q1p1/6kp/7R

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kh3
      • 2.Rxh2#
  • Tries
    • 1.Kg5?
      • 1...Kh3
        • 2.Rxh2#
      • 1...Kxh1!
    • 1.Rxh2+?
      • 1...Kf1
        • 2.Qc1#
      • 1...gxh2!
    • 1.Qf4?
      • threat
        • 2.Qf1#
      • 1...Kxh1
        • 2.Qf1#
      • 1...Kh3!
    • 1.Qe2+?
      • 1...Kxh1
        • 2.Qf1#
      • 1...Kh3!
    • 1.Qa3?
      • 1...Kh3
        • 2.Rxh2#
      • 1...Kxh1!
    • 1.Qb3?
      • 1...Kh3
        • 2.Rxh2#
      • 1...Kxh1!
    • 1.Qc3?
      • 1...Kh3
        • 2.Rxh2#
      • 1...Kxh1!
    • 1.Qf3+?
      • 1...Kh3
        • 2.Sf2#
        • 2.Rxh2#
      • 1...Kxf3!
    • 1.Qxg3+?
      • 1...Kxh1
        • 2.Sf2#
        • 2.Qxh2#
      • 1...Kxg3!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Qf1#
      • 1...Kxh1
        • 2.Qf1#
      • 1...Kh3
        • 2.Rxh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P_SPINP(b),S_FLIGHT::R1(A),XP(b)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::R1(A),XP(b)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
    • Try
      • R(A);CHECK,XP(b)
      • Vars
        • K(a);S_FLIGHT::QAR(B)
      • Refutation
        • P(c);XR(A)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);S_FLIGHT,XR(A)::QAR2(B)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT,XR(A)::QAR2(B)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::R1(A),XP(b)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
    • Try
      • Q(B);
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::R1(A),XP(b)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
    • Try
      • Q(B);
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::R1(A),XP(b)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK,XP(c)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(a);S_FLIGHT,XR(A)::QAR2(B)
      • K(a);P_SPINP(b),S_FLIGHT::R1(A),XP(b)
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