MESON Chess Problem Database

Problem Display
PID: 266484 (2Rr1b2/3p1Q2/K1N5/1pkNP3/4B3/PP6/n1r1p3/2R1n1q1 w - - 0 1)

Animitsa, Khristofor Savvich

Mat, 1980

2Rr1b2/3p1Q2/K1N5/1pkNP3/4B3/PP6/n1r1p3/2R1n1q1

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qf2
      • 2.Qxf2#
    • 1...Qd4
      • 2.Sxd8#
    • 1...Qh1
      • 2.Qf2#
    • 1...Qg4
      • 2.Qf2#
    • 1...Qg6
      • 2.Qf2#
    • 1...Qg7
      • 2.Qf2#
    • 1...Qg8
      • 2.Qf2#
    • 1...Sb4+
      • 2.axb4#
    • 1...dxc6
      • 2.Qa7#
    • 1...d6
      • 2.Qa7#
  • Tries
    • 1.Se3?
      • threat
        • 2.Qd5#
      • 1...Sb4+
        • 2.axb4#
      • 1...dxc6
        • 2.Qa7#
      • 1...Sc3
        • 2.b4#
      • 1...d5
        • 2.Qa7#
      • 1...Qg8!
    • 1.Sdb4?
      • threat
        • 2.Qd5#
      • 1...Sxb4+
        • 2.axb4#
      • 1...dxc6
        • 2.Qa7#
      • 1...Qd4
        • 2.Sxd8#
      • 1...Qg8
        • 2.Qf2#
      • 1...d5
        • 2.Qa7#
      • 1...Sc3!
    • 1.Sf4?
      • threat
        • 2.Qd5#
      • 1...Sb4+
        • 2.axb4#
      • 1...dxc6
        • 2.Se6#
        • 2.Qa7#
      • 1...Qd4
        • 2.Sxd8#
      • 1...Sc3
        • 2.b4#
      • 1...d5
        • 2.Se6#
        • 2.Qa7#
      • 1...Qg8!
    • 1.Sf6?
      • threat
        • 2.Qd5#
      • 1...Sb4+
        • 2.axb4#
      • 1...dxc6
        • 2.Qa7#
      • 1...Qd4
        • 2.Sxd8#
      • 1...Sc3
        • 2.b4#
      • 1...d5
        • 2.Qa7#
      • 1...Qg8!
    • 1.Sc7?
      • threat
        • 2.Qd5#
      • 1...Sb4+
        • 2.axb4#
      • 1...dxc6
        • 2.Se6#
      • 1...d5
        • 2.Se6#
      • 1...Qg8
        • 2.Qf2#
      • 1...Sc3
        • 2.b4#
      • 1...Qd4!
    • 1.Rxc2+?
      • 1...Sc3
        • 2.Rxc3#
      • 1...Sxc2!
    • 1.Qe7+?
      • 1...d6
        • 2.Qa7#
      • 1...Bxe7!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Qd5#
      • 1...Sb4+
        • 2.axb4#
      • 1...Sxc3
        • 2.b4#
      • 1...dxc6
        • 2.Qa7#
      • 1...Qd4
        • 2.Sxd8#
      • 1...Qg8
        • 2.Qf2#
      • 1...Rd2
        • 2.Sa4#
      • 1...d5
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • Q(b);N_GUARD::QAB(I),XQ(b)
    • Q(b);SBLOCK::R(J)+S(H),XR(i)
    • Q(b);N_GUARD::QAB(I)
    • Q(b);N_GUARD,P_PINS(H)::QAB(I)
    • S(c);CHECK,OGATE::P(B),XS(c)
    • P(h);OGATE,P_SPINP(h),XS(H)::QAB(I)
    • P(h);OGATE::QAB(I)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(I)
      • Vars
        • S(c);CHECK,OGATE::P(B),XS(c)
        • P(h);OGATE,P_SPINP(h),XS(H)::QAB(I)
        • S(c);N_GUARD,N_SPINR(d)::P(C)
        • P(h);OGATE::QAB(I)
      • Refutation
        • Q(b);
    • Try
      • S(E);
      • Threat
        • QAR1(I)
      • Vars
        • S(c);CHECK,OGATE,XS(E)::P(B),XS(c)
        • P(h);OGATE,P_SPINP(h),XS(H)::QAB(I)
        • Q(b);SBLOCK::R(J)+S(H),XR(i)
        • Q(b);N_GUARD::QAB(I)
        • P(h);OGATE::QAB(I)
      • Refutation
        • S(c);N_SPINR(d)
    • Try
      • S(E);
      • Threat
        • QAR1(I)
      • Vars
        • S(c);CHECK,OGATE::P(B),XS(c)
        • Q(b);SBLOCK::R(J)+S(H),XR(i)
        • S(c);N_GUARD,N_SPINR(d)::P(C)
      • Refutation
        • Q(b);
    • Try
      • S(E);
      • Threat
        • QAR1(I)
      • Vars
        • S(c);CHECK,OGATE::P(B),XS(c)
        • P(h);OGATE,P_SPINP(h),XS(H)::QAB(I)
        • Q(b);SBLOCK::R(J)+S(H),XR(i)
        • S(c);N_GUARD,N_SPINR(d)::P(C)
        • P(h);OGATE::QAB(I)
      • Refutation
        • Q(b);
    • Try
      • S(E);
      • Threat
        • QAR1(I)
      • Vars
        • S(c);CHECK,OGATE::P(B),XS(c)
        • P(h);N_GUARD,XS(H)::S(E)
        • P(h);N_GUARD::S(E)
        • Q(b);N_GUARD::QAB(I)
        • S(c);N_GUARD,N_SPINR(d)::P(C)
      • Refutation
        • Q(b);
    • Try
      • R(A);CHECK,XR(d)
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::R(A),XS(c)
      • Refutation
        • S(a);XR(A)
    • Try
      • Q(I);CHECK
      • Vars
        • P(h);OGATE,P_SPINP(h)::QAB(I)
      • Refutation
        • B(j);XQ(I)
  • Actual
    • S(E);N_PINR(d)
    • Threat
      • QAR1(I)
    • Vars
      • S(c);CHECK,OGATE::P(B),XS(c)
      • S(c);N_GUARD,XS(E)::P(C)
      • P(h);OGATE,P_SPINP(h),XS(H)::QAB(I)
      • Q(b);SBLOCK::R(J)+S(H),XR(i)
      • Q(b);N_GUARD::QAB(I)
      • R(d);::R(A)+S(E),DCHECK
      • P(h);OGATE::QAB(I)
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