MESON Chess Problem Database

Problem Display
PID: 160584 (6BB/2R1pr2/NK1p4/4P3/3kP1R1/2p2r1Q/3PPb2/7b w - - 0 1)

Apro, Laszlo

Dortmunder Zeitung, 1937

6BB/2R1pr2/NK1p4/4P3/3kP1R1/2p2r1Q/3PPb2/7b

#2

11 + 8

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Qxd3#
    • 1...R3f4
      • 2.Qd3#
    • 1...R3f5
      • 2.Qxc3#
      • 2.Qd3#
      • 2.dxc3#
    • 1...R3f6
      • 2.Qxc3#
    • 1...R7f4
      • 2.Rc4#
    • 1...R7f5
      • 2.Rc4#
    • 1...Rh7
      • 2.Rc4#
    • 1...Rf8
      • 2.Rc4#
    • 1...Be3
      • 2.dxc3#
  • Tries
    • 1.Qxf3?
      • threat
        • 2.Qxc3#
        • 2.Qd3#
        • 2.dxc3#
      • 1...Rxf3
        • 2.Rc4#
      • 1...cxd2
        • 2.Qc3#
        • 2.Qd3#
      • 1...Rf6
        • 2.Qxc3#
      • 1...Rg7
        • 2.Qxc3#
      • 1...Rf4
        • 2.Rc4#
        • 2.Qd3#
        • 2.dxc3#
      • 1...Be1
        • 2.Qxc3#
        • 2.Qd3#
        • 2.Qe3#
      • 1...Be3
        • 2.Qxe3#
        • 2.dxc3#
        • 2.dxe3#
      • 1...c2
        • 2.Qc3#
        • 2.Qd3#
      • 1...Bxf3!
    • 1.dxc3+?
      • 1...Rxc3
        • 2.Qxc3#
      • 1...Ke3!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Sc2#
      • 1...R3f4
        • 2.Qd3#
      • 1...R3f6
        • 2.Qxc3#
      • 1...R7f4
        • 2.Rc4#
      • 1...R7f6
        • 2.Sc6#
      • 1...Rg7
        • 2.Sc6#
      • 1...c2
        • 2.Sxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(d);OGATE::QAR1(C),XR(d)
    • R(d);OGATE::QAR1(C)
    • R(d);OGATE::QAB1(C),XP(c)
    • R(h);::R1(I)
    • B(b);SBLOCK,S_CUTR(d)::P(A),XP(c)
  • Tries
    • Try
      • Q(C);XR(d)
      • Threat
        • DUALS(3)
      • Vars
        • R(h);XQ(C)::R1(I)
        • R(h);::QAB1(C),XP(c)
      • Refutation
        • B(a);XQ(C)
    • Try
      • P(A);CHECK,XP(c)
      • Vars
        • R(d);OGATE,XP(A)::QAB1(C),XR(d)
      • Refutation
        • K(e);P_SPINR(d),S_FLIGHT
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • R(d);OGATE::QAR1(C)
      • R(d);OGATE::QAB1(C),XP(c)
      • R(h);::R1(I)
      • R(h);::S(G)
      • P(c);::S(G),XP(c)
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