MESON Chess Problem Database

Problem Display
PID: 166059 (2B5/3rp3/1N4R1/1n2p3/2pBk1K1/2b3R1/2Pr1pP1/1N3Q2 w - - 0 1)

Niestroj, Georg

Troll, 2017

2B5/3rp3/1N4R1/1n2p3/2pBk1K1/2b3R1/2Pr1pP1/1N3Q2

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qxc4#
    • 1...R2xd4
      • 2.Qe2#
    • 1...R7xd4
      • 2.Bf5#
    • 1...Bxd4
      • 2.Sxd2#
    • 1...Sxd4
      • 2.Sxc3#
    • 1...exd4
      • 2.Re6#
  • Tries
    • 1.Sxd2+?
      • 1...Kxd4
        • 2.Qxc4#
        • 2.Qxf2#
      • 1...Bxd2!
    • 1.Sxc3+?
      • 1...Kxd4
        • 2.Qxc4#
      • 1...Sxc3!
    • 1.Bc5?
      • threat
        • 2.Re3#
      • 1...Re2
        • 2.Qxe2#
      • 1...R2d4
        • 2.Qe2#
      • 1...R7d3
        • 2.Bf5#
      • 1...R7d4
        • 2.Bf5#
      • 1...Bd4
        • 2.Sxd2#
      • 1...Sd4
        • 2.Sxc3#
      • 1...R2d3!
    • 1.Qe2+?
      • 1...Kxd4
        • 2.Qxc4#
        • 2.Qe3#
      • 1...Rxe2!
    • 1.Qxc4?
      • threat
        • 2.Re3#
      • 1...R2xd4
        • 2.Qe2#
      • 1...R7xd4
        • 2.Bf5#
        • 2.Bb7#
      • 1...Bxd4
        • 2.Sxd2#
      • 1...Sxd4
        • 2.Sxc3#
      • 1...exd4
        • 2.Re6#
        • 2.Qe6#
      • 1...Re2
        • 2.Qd3#
      • 1...Rd3
        • 2.Qxd3#
        • 2.cxd3#
      • 1...f1S!
  • Keys
    • 1.Kg5!
      • threat
        • 2.Rg4#
      • 1...Kxd4
        • 2.Qxc4#
      • 1...R2xd4
        • 2.Qe2#
      • 1...R7xd4
        • 2.Bf5#
      • 1...Bxd4
        • 2.Sxd2#
      • 1...Sxd4
        • 2.Sxc3#
      • 1...exd4
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(e);OGATEB,P-FLIGHT,XB(F)::QAR1(B),XP(d)
    • R(a);N_GUARD,SBLOCK,XB(F)::QAR2(B)
    • R(h);OGATE,SBLOCK,XB(F)::B(J)
    • B(c);N_GUARD,SBLOCK,XB(F)::S(A),XR(a)
    • S(f);N_GUARD,SBLOCK,XB(F)::S(A),XB(c)
    • P(g);OGATEB,SBLOCK,XB(F)::R(I)
  • Tries
    • Try
      • S(A);CHECK,XR(a)
      • Refutation
        • B(c);XS(A)
    • Try
      • S(A);CHECK,XB(c)
      • Vars
        • K(e);P-FLIGHT,XB(F)::QAR1(B),XP(d)
      • Refutation
        • S(f);XS(A)
    • Try
      • B(F);
      • Threat
        • R1(E)
      • Vars
        • R(a);N_GUARD::QAR2(B),XR(a)
        • R(a);N_GUARD::QAR2(B)
        • R(h);OGATE::B(J)
        • B(c);N_GUARD,S_CUTR(h)::S(A),XR(a)
        • S(f);N_GUARD::S(A),XB(c)
      • Refutation
        • R(a);
    • Try
      • Q(B);CHECK
      • Refutation
        • R(a);XQ(B)
    • Try
      • Q(B);XP(d)
      • Threat
        • R1(E)
      • Vars
        • R(a);N_GUARD,P_SPINR(a),SBLOCK,XB(F)::QAR2(B)
        • B(c);N_GUARD,P_SPINB(c),XB(F)::S(A),XR(a)
        • S(f);N_GUARD,P_SPINS(f),XB(F)::S(A),XB(c)
        • R(a);N_GUARD::QAB1(B)
      • Refutation
        • P(b);
  • Actual
    • K(G);P-FLIGHT
    • Threat
      • R(E)
    • Vars
      • K(e);OGATEB,P-FLIGHT,XB(F)::QAR1(B),XP(d)
      • R(a);N_GUARD,SBLOCK,XB(F)::QAR2(B)
      • R(h);OGATE,SBLOCK,XB(F)::B(J)
      • B(c);N_GUARD,SBLOCK,XB(F)::S(A),XR(a)
      • S(f);N_GUARD,SBLOCK,XB(F)::S(A),XB(c)
      • P(g);OGATEB,SBLOCK,XB(F)::R(I)
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