MESON Chess Problem Database

Problem Display
PID: 119956 (2K5/8/1RpR1b2/p1k1p3/8/3B4/8/Q7 w - - 0 1)

Montvid, ES

Shakhmatnoe obozrenie, 1901

2K5/8/1RpR1b2/p1k1p3/8/3B4/8/Q7

#2

5 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxb6
      • 2.Qg1#
  • Tries
    • 1.Kc7?
      • threat
        • 2.Qc3#
        • 2.Qc1#
        • 2.Qg1#
        • 2.Qa3#
        • 2.Qxa5#
      • 1...Bh4
        • 2.Qc3#
        • 2.Qxe5#
        • 2.Qc1#
        • 2.Qa3#
        • 2.Qxa5#
      • 1...Bg5
        • 2.Qc3#
        • 2.Qxe5#
        • 2.Qa3#
        • 2.Qxa5#
      • 1...a4
        • 2.Qc3#
        • 2.Qc1#
        • 2.Qg1#
        • 2.Qa3#
      • 1...e4
        • 2.Qa3#
        • 2.Qxa5#
      • 1...Bd8+!
    • 1.Kd7?
      • threat
        • 2.Qg1#
        • 2.Qxa5#
      • 1...Bh4
        • 2.Qxa5#
      • 1...Bg5
        • 2.Qxa5#
      • 1...a4
        • 2.Qg1#
      • 1...e4
        • 2.Qxa5#
      • 1...Kxb6!
    • 1.Rd7?
      • threat
        • 2.Qg1#
        • 2.Qxa5#
      • 1...Bh4
        • 2.Qxa5#
      • 1...Bg5
        • 2.Qxa5#
      • 1...a4
        • 2.Qg1#
      • 1...e4
        • 2.Qxa5#
      • 1...Kxb6!
    • 1.Qc1+?
      • 1...Kxb6
        • 2.Qe3#
        • 2.Qg1#
      • 1...Kxd6!
    • 1.Qe1?
      • threat
        • 2.Rbxc6#
      • 1...Kxb6
        • 2.Qf2#
        • 2.Qg1#
        • 2.Qe3#
      • 1...Kxd6!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Rdxc6#
      • 1...Kxc4
        • 2.Qc1#
      • 1...Kxb6
        • 2.Qg1#
      • 1...Kxd6
        • 2.Qa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINP(d),S_FLIGHT,XR(C)::QAB(A)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Threat
        • DUALS(5)
      • Refutation
        • B(e);CHECK
    • Try
      • K(E);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • B(e);::QAR2(A),XP(a)
        • P(a);::QAB(A)
        • P(c);::QAR2(A),XP(a)
      • Refutation
        • K(b);P_SPINP(d),S_FLIGHT,XR(C)
    • Try
      • R(D);
      • Threat
        • DUALS(2)
      • Vars
        • B(e);::QAR2(A),XP(a)
        • P(a);::QAB(A)
        • P(c);::QAR2(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT,XR(C)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P_SPINP(d),S_FLIGHT,XR(D)
    • Try
      • Q(A);
      • Threat
        • R1(C),XP(d)
      • Refutation
        • K(b);P_SPINP(d),S_FLIGHT,XR(D)
  • Actual
    • B(B);
    • Threat
      • R1(D),XP(d)
    • Vars
      • K(b);OGATEB,P-FLIGHT,XB(B)::QAR(A)
      • K(b);P_SPINP(d),S_FLIGHT,XR(C)::QAB(A)
      • K(b);P_SPINP(d),S_FLIGHT,XR(D)::QAB(A)
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