MESON Chess Problem Database

Problem Display
PID: 107813 (4K3/3B4/5pp1/2npkPp1/2pRN3/1n3RN1/1QP1r2B/2b2b2 w - - 0 1)

Brill, Adolf

Warszawaskie Kozo Probl., 1931

4K3/3B4/5pp1/2npkPp1/2pRN3/1n3RN1/1QP1r2B/2b2b2

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Se2#
    • 1...Re3
      • 2.Sxf1#
      • 2.Sh1#
      • 2.Se2#
      • 2.Sh5#
    • 1...Bxb2
      • 2.Sxe2#
    • 1...Sd2
      • 2.Sxe2#
    • 1...Sxd4
      • 2.Qb8#
    • 1...gxf5
      • 2.Rxf5#
  • Tries
    • 1.Sd6?
      • threat
        • 2.Sf7#
      • 1...Kxd6+
        • 2.Se4#
      • 1...Bxb2
        • 2.Sxe2#
      • 1...c3!
    • 1.Bc6?
      • threat
        • 2.Rxd5#
      • 1...Sxd4
        • 2.Qb8#
      • 1...dxe4
        • 2.Rd5#
      • 1...gxf5!
    • 1.Rxc4+?
      • 1...Bxb2
        • 2.Sxe2#
      • 1...Sd4
        • 2.Qxd4#
        • 2.Qb8#
      • 1...d4!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Rxd5#
      • 1...Kxd4+
        • 2.Scxe2#
      • 1...Kd6+
        • 2.Sge4#
      • 1...Sxd4
        • 2.Qb8#
      • 1...Rd2
        • 2.Sge2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(c);S_CUTB(a)::B(C)+S(E)
    • B(a);N_GUARD,XQ(A)::B(C)+S(E),XR(c)
    • S(d);S_CUTB(a)::B(C)+S(E),XR(c)
    • S(d);OGATE,P_SPINS(d),SBLOCK,XR(F)::QAB(A)
    • P(k);OGATE,XP(H)::R1(D),XP(k)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • K(h);CHECK,P_SPINP(g),S_FLIGHT,XS(G)::B(C)+S(E),DCHECK
        • B(a);N_GUARD,XQ(A)::B(C)+S(E),XR(c)
      • Refutation
        • P(e);
    • Try
      • B(I);
      • Threat
        • QAB(A)+R(F),DCHECK,XP(g)
      • Vars
        • S(d);OGATE,P_SPINS(d),SBLOCK,XR(F)::QAB(A)
        • P(g);XS(G)::QAB(A)+R(F),DCHECK
      • Refutation
        • P(k);XP(H)
    • Try
      • R(F);CHECK,XP(e)
      • Vars
        • B(a);XQ(A)::B(C)+S(E),XR(c)
      • Refutation
        • P(g);P_SPINP(g)
  • Actual
    • S(G);
    • Threat
      • R1(F),XP(g)
    • Vars
      • K(h);CHECK,S_FLIGHT,XR(F)::QAB(A)+S(G),DCHECK,XR(c)
      • K(h);CHECK,P_SPINP(g),S_FLIGHT::B(C)+S(E),DCHECK
      • S(d);OGATE,SBLOCK,XR(F)::QAB(A)
      • R(c);S_CUTB(a)::B(C)+S(E)
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