MESON Chess Problem Database

Problem Display
PID: 6161 (1Nn5/2r3p1/1pQ3bq/3ppRB1/1P1k4/RK3PNp/B3P2r/b6n w - - 0 1)

Shif, Vladimir Iosifovich

Nasha gazeta, 1927

1Nn5/2r3p1/1pQ3bq/3ppRB1/1P1k4/RK3PNp/B3P2r/b6n

#2

11 + 13

3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc6
      • 2.Sxc6#
    • 1...Bxf5
      • 2.Sxf5#
    • 1...e4
      • 2.Rxd5#
      • 2.Qxd5#
  • Tries
    • 1.Bb1?
      • threat
        • 2.e3#
      • 1...Rxe2
        • 2.Sxe2#
      • 1...Qxg5!
    • 1.Qxb6+?
      • 1...Rc5
        • 2.Sc6#
        • 2.Qxc5#
      • 1...Sxb6!
    • 1.Qxc7?
      • threat
        • 2.Sc6#
        • 2.Qxe5#
      • 1...Qxg5
        • 2.Qxe5#
      • 1...Bxf5
        • 2.Sxf5#
      • 1...Bh5
        • 2.Qxe5#
      • 1...Bf7
        • 2.Qxe5#
      • 1...Bh7
        • 2.Qxe5#
      • 1...Be8
        • 2.Qxe5#
      • 1...Sd6
        • 2.Sc6#
        • 2.Qxb6#
      • 1...Sa7
        • 2.Qxe5#
        • 2.Qxb6#
      • 1...Se7
        • 2.Qxe5#
        • 2.Qxb6#
      • 1...e4
        • 2.Sc6#
        • 2.Qe5#
      • 1...Rxe2!
  • Keys
    • 1.Kc2!
      • threat
        • 2.Rd3#
      • 1...Rxe2+
        • 2.Sxe2#
      • 1...Rxc6+
        • 2.Sxc6#
      • 1...Bxf5+
        • 2.Sxf5#
      • 1...Bc3
        • 2.Qxd5#
      • 1...Sf2
        • 2.e3#
      • 1...e4
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(k);XQ(J)::S(K),XR(k)
    • B(i);XR(H)::S(F),XB(i)
  • Tries
    • Try
      • B(A);
      • Threat
        • P(B)
      • Vars
        • R(c);XP(B)::S(F),XR(c)
      • Refutation
        • Q(j);XB(I)
    • Try
      • Q(J);CHECK,XP(h)
      • Refutation
        • S(m);XQ(J)
    • Try
      • Q(J);XR(k)
      • Threat
        • DUALS(2)
      • Vars
        • Q(j);XB(I)::QAB1(J),XP(g)
        • B(i);XR(H)::S(F),XB(i)
        • B(i);::QAB1(J),XP(g)
      • Refutation
        • R(c);XP(B)
  • Actual
    • K(D);P_SPINP(B),P_SPINQ(J),P_SPINR(H),S_FLIGHT
    • Threat
      • R1(C)
    • Vars
      • R(c);CHECK,XP(B)::S(F),XR(c)
      • R(k);CHECK,XQ(J)::S(K),XR(k)
      • B(i);CHECK,XR(H)::S(F),XB(i)
      • B(a);N_PINQ(J)::QAR1(J),XP(f)
      • S(b);N_PINP(B)::P(B)
      • P(g);N_PINR(H)::R1(H),XP(f)
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