MESON Chess Problem Database

Problem Display
PID: 196604 (1nQ5/8/p2N4/b2P4/K1PrP3/P1kP4/4R3/3R4 w - - 0 1)

Mihajloski, Zlatko

Miloseski, Bosko

Suomen Shakki, 1985

1nQ5/8/p2N4/b2P4/K1PrP3/P1kP4/4R3/3R4

#2

10 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4+
      • 2.Qxc4#
  • Tries
    • 1.Qc5?
      • threat
        • 2.Qxa5#
      • 1...Rxc4+
        • 2.Qxc4#
      • 1...Rxd3
        • 2.Rc1#
      • 1...Rxe4
        • 2.Sxe4#
      • 1...Rxd5
        • 2.cxd5#
      • 1...Bb4
        • 2.Qxb4#
      • 1...Bb6
        • 2.Qb4#
      • 1...Bc7
        • 2.Qb4#
      • 1...Bd8
        • 2.Qb4#
      • 1...Sc6!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Rc1#
      • 1...Rxc4+
        • 2.dxc4#
      • 1...Rxd3
        • 2.Rxd3#
        • 2.Qxd3#
      • 1...Rxe4
        • 2.dxe4#
      • 1...Rxd5
        • 2.d4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(b);CHECK,OGATE,P_SPINR(b),XP(F)::QAR1(J),XR(b)
  • Tries
    • Try
      • Q(J);
      • Threat
        • QAB(J),XB(c)
      • Vars
        • R(b);CHECK,OGATE,P_SPINR(b),XP(F)::QAR1(J),XR(b)
        • R(b);N_PINP(F),SBLOCK,XP(D)::R(A)
        • R(b);XP(G)::S(I),XR(b)
        • R(b);N_PINP(F),XP(H)::QAR(J)+P(F),XR(b)
        • B(c);N_GUARD,N_PINP(F)::QAB1(J),XB(c)
        • B(c);N_GUARD::QAB1(J)
      • Refutation
        • S(e);
  • Actual
    • Q(J);
    • Threat
      • R(A)
    • Vars
      • R(b);CHECK,OGATE,XP(F)::QAR(J)+P(D),XR(b)
      • R(b);OGATE,XP(G)::QAR(J)+P(D),XR(b)
      • R(b);N_PINP(F),OGATE,XP(H)::QAR(J)+P(D)
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