MESON Chess Problem Database

Problem Display
PID: 132591 (6QB/1n1N4/2Pq3p/n3N3/R1pk2Pr/6Kp/2PP4/2r2b1B w - - 0 1)

Baxter, FL

The Field, 1957

(First published on Thu Sep 26 1957)

6QB/1n1N4/2Pq3p/n3N3/R1pk2Pr/6Kp/2PP4/2r2b1B

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qa3+
      • 2.Sd3#
    • 1...Qb4
      • 2.Sd3#
      • 2.Sxc4#
      • 2.Sg6#
      • 2.Sf7#
      • 2.Qd5#
    • 1...Qxe5+
      • 2.Bxe5#
    • 1...Qc7
      • 2.Qd5#
    • 1...Qe7
      • 2.Qd5#
    • 1...Qb8
      • 2.Qd5#
    • 1...Qf8
      • 2.Qd5#
    • 1...Qd5
      • 2.Qxd5#
    • 1...Qxc6
      • 2.Sxc6#
    • 1...Qf6
      • 2.Qd5#
    • 1...Qg6
      • 2.Sxg6#
      • 2.Qd5#
    • 1...Qxd7
      • 2.Sxd7#
    • 1...Ra1
      • 2.c3#
    • 1...Rb1
      • 2.c3#
    • 1...Rd1
      • 2.c3#
    • 1...Re1
      • 2.c3#
    • 1...Rxg4+
      • 2.Qxg4#
  • Keys
    • 1.Qg6!
      • threat
        • 2.Qe4#
      • 1...Qa3+
        • 2.Sd3#
      • 1...Qxe5+
        • 2.Bxe5#
      • 1...Rxg4+
        • 2.Qxg4#
      • 1...Qxc6
        • 2.Sxc6#
      • 1...Qxg6
        • 2.Sxg6#
      • 1...Qxd7
        • 2.Sxd7#
      • 1...Bg2
        • 2.Qd3#
      • 1...Qd5
        • 2.Sf3#
      • 1...Re1
        • 2.c3#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Sc5
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • Q(h);CHECK,N_PINS(G)::B(K)+S(G)
    • Q(h);CHECK,OGATE,P_SPINQ(h),XS(G)::B(K),XQ(h)
    • Q(h);N_GUARD::QAR1(J)
    • Q(h);N_GUARD,N_PINS(G)::QAR1(J)
    • Q(h);N_GUARD,N_PINS(G)::QAR1(J),XQ(h)
    • Q(h);N_PINS(G),XP(H)::B(K)+S(G),DCHECK,XQ(h)
    • Q(h);N_PINS(G),XS(I)::B(K)+S(G),XQ(h)
    • R(a);N_GUARD::P(B)
    • R(f);CHECK,OGATE,XP(F)::QAR(J),XR(f)
  • Actual
    • Q(J);
    • Threat
      • QAR1(J)
    • Vars
      • Q(h);CHECK,N_PINS(G)::B(K)+S(G)
      • Q(h);CHECK,OGATE,P_SPINQ(h),XS(G)::B(K),XQ(h)
      • R(f);CHECK,OGATE,XP(F)::QAR(J),XR(f)
      • Q(h);N_PINS(G),XP(H)::B(K)+S(G),DCHECK,XQ(h)
      • Q(h);N_PINS(G),P_PINP(F),XQ(J)::B(K)+S(G),XQ(h)
      • Q(h);N_PINS(G),XS(I)::B(K)+S(G),XQ(h)
      • B(b);N_GUARD::QAR1(J)
      • Q(h);N_PINS(G),SBLOCK::B(K)+S(G),DCHECK
      • R(a);N_GUARD::P(B)
      • B(b);N_GUARD::QAR1(J),XB(b)
      • S(j);N_GUARD::QAR2(J),XQ(h)
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