MESON Chess Problem Database

Problem Display
PID: 28444 (N4B2/1p1PKP2/rR2p3/P2P4/P1k1Bp2/1Np2p2/2Pbr3/3R1Q2 w - - 0 1)

Dombrovskis, Alfreds A

Sushkov, Yuri Akimovich

Shakhmaty v SSSR, 1976

N4B2/1p1PKP2/rR2p3/P2P4/P1k1Bp2/1Np2p2/2Pbr3/3R1Q2

#2

14 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Rd4#
    • 1...Be1
      • 2.Rd4#
    • 1...f2
      • 2.Qxe2#
  • Tries
    • 1.Kf6?
      • threat
        • 2.Rb4#
      • 1...Rxb6
        • 2.Sxb6#
      • 1...exd5
        • 2.Bd3#
      • 1...e5!
    • 1.Kd8?
      • threat
        • 2.Rb4#
      • 1...Rxb6
        • 2.Sxb6#
      • 1...Rxa8+!
    • 1.Ke8?
      • threat
        • 2.Rb4#
      • 1...Rxb6
        • 2.Sxb6#
      • 1...Rxa8+!
    • 1.d8Q?
      • threat
        • 2.Bd3#
        • 2.Qc7#
        • 2.Qc8#
      • 1...Rxa5
        • 2.Bd3#
      • 1...Rxa8
        • 2.Bd3#
        • 2.Qc7#
      • 1...exd5
        • 2.Qc7#
        • 2.Qxd5#
        • 2.Qc8#
      • 1...Be3
        • 2.Bd3#
      • 1...Rxb6!
    • 1.d8R?
      • threat
        • 2.Bd3#
        • 2.Rc8#
      • 1...Rxa5
        • 2.Bd3#
      • 1...Rxa8
        • 2.Bd3#
      • 1...exd5
        • 2.Rc8#
      • 1...Be3
        • 2.Bd3#
      • 1...Rxb6!
  • Keys
    • 1.Kxe6!
      • 1...Rxb6+
        • 2.Sxb6#
      • 1...Rxa5
        • 2.Rb4#
      • 1...Rxa8
        • 2.Rb4#
      • 1...Ra7
        • 2.Rb4#
      • 1...Bc1
        • 2.Rd4#
      • 1...Be1
        • 2.Rd4#
      • 1...Be3
        • 2.Bd3#
      • 1...f2
        • 2.Qxe2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE::R1(A)
    • P(d);N_GUARD::QAB(B),XR(b)
  • Tries
    • Try
      • K(K);S_FLIGHT
      • Threat
        • R1(I)
      • Vars
        • R(g);XR(I)::S(M),XR(g)
        • P(h);P_PINR(I),SBLOCK,XP(H)::B(F)
      • Refutation
        • P(h);P_PINR(I)
    • Try
      • K(K);S_FLIGHT
      • Threat
        • R1(I)
      • Vars
        • R(g);XR(I)::S(M),XR(g)
      • Refutation
        • R(g);CHECK,XS(M)
    • Try
      • K(K);P-FLIGHT
      • Threat
        • R1(I)
      • Vars
        • R(g);XR(I)::S(M),XR(g)
      • Refutation
        • R(g);CHECK,XS(M)
    • Try
      • P(J);
      • Threat
        • DUALS(3)
      • Vars
        • R(g);XP(G)::B(F)
        • B(a);::B(F)
      • Refutation
        • R(g);XR(I)
    • Try
      • P(J);
      • Threat
        • DUALS(2)
      • Vars
        • R(g);XP(G)::B(F)
        • R(g);XS(M)::B(F)
        • P(h);P_PINB(F),XP(H)::R(J)
        • B(a);::B(F)
      • Refutation
        • R(g);XR(I)
  • Actual
    • K(K);P-FLIGHT,P_SPINB(F),P_SPINR(I),XP(h)
    • Vars
      • R(g);CHECK,XR(I)::S(M),XR(g)
      • R(g);N_PINR(I),XP(G)::R1(I)
      • R(g);N_PINR(I),XS(M)::R1(I)
      • R(g);N_PINR(I)::R1(I)
      • B(a);OGATE::R1(A)
      • B(a);N_PINB(F)::B(F)
      • P(d);N_GUARD::QAB(B),XR(b)
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