MESON Chess Problem Database

Problem Display
PID: 243603 (3Rq2b/1p1Np3/4P1B1/NR4p1/3k1p2/1p5r/1K1PP3/3Q3r w - - 0 1)

Bakay, Bela

Nepszava, 1930

3Rq2b/1p1Np3/4P1B1/NR4p1/3k1p2/1p5r/1K1PP3/3Q3r

#2

10 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg6
      • 2.Sf6#
    • 1...Qxd7
      • 2.Rxd7#
    • 1...Qf7
      • 2.Se5#
      • 2.Sb6#
      • 2.Sf6#
      • 2.Sb8#
      • 2.Sf8#
    • 1...Qf8
      • 2.Sxf8#
    • 1...Qg8
      • 2.Sf8#
    • 1...f3
      • 2.e3#
  • Tries
    • 1.Se5+?
      • 1...Qd7
        • 2.Rxd7#
      • 1...Qxd8!
    • 1.Sb6+?
      • 1...Qd7
        • 2.Rxd7#
      • 1...Qxd8!
    • 1.Sf6+?
      • 1...Qd7
        • 2.Rxd7#
      • 1...Qxd8!
    • 1.Sb8+?
      • 1...Qd7
        • 2.Rxd7#
      • 1...Qxd8!
    • 1.Sf8+?
      • 1...Qd7
        • 2.Rxd7#
      • 1...Qxd8!
    • 1.Qc1?
      • threat
        • 2.Qc4#
        • 2.Qc5#
      • 1...Qxg6
        • 2.Sf6#
        • 2.Qc4#
      • 1...Rc3
        • 2.Qxc3#
        • 2.dxc3#
      • 1...b6
        • 2.Sc6#
        • 2.Qc4#
      • 1...Rxc1!
    • 1.e3+?
      • 1...fxe3
        • 2.Qg4#
      • 1...Rxe3!
  • Keys
    • 1.e4!
      • threat
        • 2.Rd5#
      • 1...Kd3+
        • 2.Se5#
      • 1...Qxg6
        • 2.Sf6#
      • 1...Qxd7
        • 2.Rxd7#
      • 1...fxe4 ep
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • Q(i);N_GUARD,XB(H)::R(J)+S(I)
    • Q(i);OGATE,P_SPINQ(i),XS(I)::R(J),XQ(i)
    • Q(i);N_GUARD::R(J)+S(I),XQ(i)
    • Q(i);N_GUARD::R(J)+S(I)
    • P(e);N_GUARD,S_CUTR(c)::P(D)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • Q(i);N_GUARD,P_SPINQ(i)::R(J),XQ(i)
      • Refutation
        • Q(i);XR(J)
    • Try
      • S(I);CHECK
      • Vars
        • Q(i);N_GUARD,P_SPINQ(i)::R(J),XQ(i)
      • Refutation
        • Q(i);XR(J)
    • Try
      • S(I);CHECK
      • Vars
        • Q(i);N_GUARD,P_SPINQ(i)::R(J),XQ(i)
      • Refutation
        • Q(i);XR(J)
    • Try
      • S(I);CHECK
      • Vars
        • Q(i);N_GUARD,P_SPINQ(i)::R(J),XQ(i)
      • Refutation
        • Q(i);XR(J)
    • Try
      • S(I);CHECK
      • Vars
        • Q(i);N_GUARD,P_SPINQ(i)::R(J),XQ(i)
      • Refutation
        • Q(i);XR(J)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • R(a);XQ(A)
    • Try
      • P(D);CHECK
      • Vars
        • P(e);S_CUTR(c),XP(D)::QAR(A)
      • Refutation
        • R(c);XP(D)
  • Actual
    • P(D);
    • Threat
      • R1(F)
    • Vars
      • K(d);CHECK,P-FLIGHT::R(J)+S(I),DCHECK
      • Q(i);N_GUARD,XB(H)::R(J)+S(I)
      • Q(i);OGATE,P_SPINQ(i),XS(I)::R(J),XQ(i)
      • P(e);EP,OGATEB,XP(D)::QAR(A)
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