MESON Chess Problem Database

Problem Display
PID: 159881 (8/8/2pN4/P2R2R1/1p2P2K/2k2p2/Q3nn2/b4BB1 w - - 0 1)

Amirov, Talip Khasanovich

Problem (Zagreb), 1967

8/8/2pN4/P2R2R1/1p2P2K/2k2p2/Q3nn2/b4BB1

#2

9 + 7

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Qc4#
    • 1...Sd4
      • 2.Rc5#
    • 1...Sxe4
      • 2.Sxe4#
    • 1...b3
      • 2.Qd2#
    • 1...c5
      • 2.Sb5#
  • Tries
    • 1.Bxe2?
      • 1...Sxe4
        • 2.Sxe4#
        • 2.Bd4#
        • 2.Rd3#
      • 1...cxd5
        • 2.Sb5#
      • 1...Bb2
        • 2.Qc4#
      • 1...b3
        • 2.Qd2#
      • 1...Sd1
        • 2.Bd4#
        • 2.Rd3#
        • 2.Rc5#
      • 1...Sh1
        • 2.Bd4#
        • 2.Rd3#
        • 2.Rc5#
      • 1...Sd3
        • 2.Bd4#
        • 2.Rxd3#
      • 1...Sh3
        • 2.Bd4#
        • 2.Rd3#
        • 2.Rc5#
      • 1...Sg4
        • 2.Bd4#
        • 2.Rd3#
        • 2.Rc5#
      • 1...c5
        • 2.Sb5#
      • 1...fxe2!
    • 1.Bxf2?
      • threat
        • 2.Be1#
      • 1...Bb2
        • 2.Qc4#
      • 1...cxd5!
    • 1.Rd2?
      • threat
        • 2.Rc5#
        • 2.Qc2#
      • 1...Sxe4
        • 2.Sxe4#
        • 2.Qc2#
      • 1...Bb2
        • 2.Qxb2#
      • 1...Sd4
        • 2.Rc5#
      • 1...Sd3
        • 2.Rc2#
        • 2.Qc2#
      • 1...c5
        • 2.Sb5#
        • 2.Rxc5#
        • 2.Qc2#
      • 1...b3!
    • 1.Rc5+?
      • 1...Kd4
        • 2.Qd2#
      • 1...Kd3!
  • Keys
    • 1.Rd4!
      • 1...Kxd4
        • 2.Qd2#
      • 1...Sxg1
        • 2.Rc4#
      • 1...Sxd4
        • 2.Rc5#
      • 1...Sxe4
        • 2.Sxe4#
      • 1...Bb2
        • 2.Qc4#
      • 1...Sc1
        • 2.Rc4#
      • 1...Sg3
        • 2.Rc4#
      • 1...Sf4
        • 2.Rc4#
      • 1...Sd1
        • 2.Rc5#
      • 1...Sh1
        • 2.Rc5#
      • 1...Sd3
        • 2.Rc4#
      • 1...Sh3
        • 2.Rc5#
      • 1...Sg4
        • 2.Rc5#
      • 1...b3
        • 2.Qd2#
      • 1...c5
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::QAR1(C)
    • S(b);SBLOCK::R(G)
    • S(c);XP(D)::S(I),XS(c)
    • P(f);SBLOCK::QAB1(C)
    • P(g);N_GUARD::S(I)
  • Tries
    • Try
      • B(A);XS(b)
      • Vars
        • P(g);N_GUARD,XR(G)::S(I)
        • B(a);SBLOCK::QAR1(C)
        • P(f);SBLOCK::QAB1(C)
        • P(g);N_GUARD::S(I)
      • Refutation
        • P(e);XB(A)
    • Try
      • B(B);XS(c)
      • Threat
        • B(B)
      • Vars
        • B(a);SBLOCK::QAR1(C)
      • Refutation
        • P(g);XR(G)
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);N_GUARD::QAB1(C),XB(a)
        • S(b);::R(H)
      • Refutation
        • P(f);
    • Try
      • R(G);CHECK
      • Vars
        • K(d);P_SPINS(c),S_FLIGHT::QAR2(C)
      • Refutation
        • K(d);P-FLIGHT,P_SPINS(b)
  • Actual
    • R(G);
    • Vars
      • K(d);P_SPINS(c),S_FLIGHT,XR(G)::QAR2(C)
      • S(b);XB(B)::R1(G)
      • S(b);SBLOCK,XR(G)::R(H)
      • S(c);XP(D)::S(I),XS(c)
      • B(a);SBLOCK::QAR1(C)
      • S(b);::R1(G)
      • S(c);::R(H)
      • S(c);SBLOCK::R1(G)
      • P(f);SBLOCK::QAB1(C)
      • P(g);N_GUARD::S(I)
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