MESON Chess Problem Database

Problem Display
PID: 218855 (8/1N2pB2/1p6/b3k3/4p1K1/2R5/4P3/6Q1 w - - 0 1)

Kapitonov, P

Uralski Problemist, 1996

8/1N2pB2/1p6/b3k3/4p1K1/2R5/4P3/6Q1

#2

6 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Qg3+?
      • 1...Kd4
        • 2.Rc4#
      • 1...Kf6!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Rc5#
      • 1...Kd4
        • 2.Rd3#
      • 1...Kf6
        • 2.Rf3#
      • 1...Bxc3
        • 2.Qxc3#
      • 1...e3
        • 2.Rxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);S_FLIGHT::R1(C)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAB(A)+R(C),DCHECK
    • Vars
      • K(c);S_FLIGHT::QAB(A)+R(C),DCHECK
      • B(b);OGATE,P_SPINB(b),XR(C)::QAB(A),XB(b)
      • P(a);::QAB(A)+R(C),DCHECK,XP(a)
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