MESON Chess Problem Database

Problem Display
PID: 75409 (2bR4/2r5/qp1Np3/p1p1k1P1/R3PpQp/K7/BN3B2/8 w - - 0 1)

Simadhinata, Januarta (Siem Giok Liam)

1st HM., The Problemist, 2006

2bR4/2r5/qp1Np3/p1p1k1P1/R3PpQp/K7/BN3B2/8

#2

10 + 10

56 The Problemist 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3+
      • 2.Sxd3#
    • 1...Qc4
      • 2.Sbxc4#
    • 1...Qb7
      • 2.Sd3#
      • 2.Sbc4#
    • 1...Qa7
      • 2.Sd3#
      • 2.Sbc4#
    • 1...Qa8
      • 2.Sd3#
      • 2.Sbc4#
    • 1...Rc6
      • 2.Sf7#
    • 1...Rd7
      • 2.Qxe6#
    • 1...Rf7
      • 2.Sxf7#
    • 1...Bb7
      • 2.Qxe6#
    • 1...Bd7
      • 2.Sf7#
    • 1...b5
      • 2.Sd3#
  • Tries
    • 1.Sdc4+?
      • 1...Kxe4
        • 2.Bb1#
      • 1...Qxc4!
    • 1.Bc4?
      • threat
        • 2.Sd3#
      • 1...Qxc4
        • 2.Sbxc4#
      • 1...Rd7
        • 2.Qxe6#
      • 1...Bd7!
    • 1.Be1?
      • threat
        • 2.Bc3#
      • 1...Qd3+
        • 2.Sxd3#
      • 1...Rd7
        • 2.Qxe6#
      • 1...Bd7
        • 2.Sf7#
      • 1...Qc4!
    • 1.Bxc5?
      • threat
        • 2.Bd4#
      • 1...Qd3+
        • 2.Sxd3#
      • 1...Rxc5
        • 2.Sf7#
      • 1...Qc4
        • 2.Sbxc4#
      • 1...Rd7
        • 2.Qxe6#
      • 1...Bd7
        • 2.Sf7#
      • 1...bxc5!
    • 1.Rc4?
      • threat
        • 2.Sd3#
      • 1...Qxc4
        • 2.Sbxc4#
      • 1...Bd7
        • 2.Sf7#
      • 1...Rd7!
    • 1.Rd7?
      • threat
        • 2.Sf7#
        • 2.Qxe6#
      • 1...Qd3+
        • 2.Sxd3#
      • 1...Rxd7
        • 2.Qxe6#
      • 1...Bxd7
        • 2.Sf7#
      • 1...Qc4
        • 2.Sbxc4#
      • 1...f3
        • 2.Sf7#
      • 1...c4!
    • 1.Qf3?
      • threat
        • 2.Qc3#
      • 1...Qd3+
        • 2.Sxd3#
      • 1...Bd7
        • 2.Sf7#
      • 1...Qc4
        • 2.Sbxc4#
        • 2.Sdxc4#
      • 1...Rd7!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Qc3#
      • 1...Qd3+
        • 2.Sxd3#
      • 1...Rd7
        • 2.Qxe6#
      • 1...Bd7
        • 2.Sf7#
      • 1...f3
        • 2.Qh2#
      • 1...Qc4
        • 2.Sbxc4#

This is a version of 71277

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • Q(f);CHECK,N_GUARD::S(B),XQ(f)
    • Q(f);N_GUARD::S(B),XQ(f)
    • R(i);N_GUARD::S(I)
    • R(i);S_CUTB(j)::QAR1(G),XP(h)
    • R(i);N_GUARD::S(I),XR(i)
    • B(j);N_GUARD::QAR1(G),XP(h)
    • B(j);S_CUTR(i)::S(I)
    • P(g);S_CUTQ(f)::S(B)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINP(a),XP(F)::B(A)
      • Refutation
        • Q(f);XS(I)
    • Try
      • B(A);
      • Threat
        • S(B)
      • Vars
        • Q(f);XB(A)::S(B),XQ(f)
        • R(i);S_CUTB(j)::QAR1(G),XP(h)
      • Refutation
        • B(j);
    • Try
      • B(C);
      • Threat
        • B(C)
      • Vars
        • Q(f);CHECK,N_GUARD::S(B),XQ(f)
        • R(i);S_CUTB(j)::QAR1(G),XP(h)
        • B(j);S_CUTR(i)::S(I)
      • Refutation
        • Q(f);
    • Try
      • B(C);XP(d)
      • Threat
        • B(C)
      • Vars
        • Q(f);CHECK,N_GUARD::S(B),XQ(f)
        • R(i);N_GUARD,XB(C)::S(I)
        • Q(f);N_GUARD::S(B),XQ(f)
        • R(i);S_CUTB(j)::QAR1(G),XP(h)
        • B(j);S_CUTR(i)::S(I)
      • Refutation
        • P(g);XB(C)
    • Try
      • R(E);
      • Threat
        • S(B)
      • Vars
        • Q(f);XR(E)::S(B),XQ(f)
        • B(j);S_CUTR(i)::S(I)
      • Refutation
        • R(i);
    • Try
      • R(J);
      • Threat
        • DUALS(2)
      • Vars
        • Q(f);CHECK,N_GUARD::S(B),XQ(f)
        • R(i);XR(J)::QAR1(G),XP(h)
        • B(j);XR(J)::S(I)
        • Q(f);N_GUARD::S(B),XQ(f)
        • P(a);::S(I)
      • Refutation
        • P(d);
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • Q(f);CHECK,N_GUARD::S(B),XQ(f)
        • B(j);S_CUTR(i)::S(I)
      • Refutation
        • R(i);
  • Actual
    • Q(G);
    • Threat
      • QAB(G)
    • Vars
      • Q(f);CHECK,N_GUARD::S(B),XQ(f)
      • R(i);S_CUTB(j)::QAR1(G),XP(h)
      • B(j);S_CUTR(i)::S(I)
      • P(a);OGATEB::QAB(G)
      • Q(f);N_GUARD::S(B),XQ(f)
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Developed and maintained by Brian Stephenson.
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