MESON Chess Problem Database

Problem Display
PID: 245757 (1N1rb3/K1Qq1Bn1/1p2N2R/3k3p/pPR2P2/5P2/2Prp3/2n1b3 w - - 0 1)

Wrobel, Marian

Revista Romana de Sah, 1931

1N1rb3/K1Qq1Bn1/1p2N2R/3k3p/pPR2P2/5P2/2Prp3/2n1b3

#2

11 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc7+
      • 2.Sxc7#
    • 1...Rxc2
      • 2.Rd4#
    • 1...Rd4
      • 2.Rxd4#
    • 1...Sd3
      • 2.Rd4#
    • 1...Sxe6
      • 2.Rxh5#
    • 1...b5
      • 2.Rc5#
  • Tries
    • 1.Rxh5+?
      • 1...Sf5
        • 2.Rxf5#
      • 1...Sxh5!
    • 1.Qxd7+?
      • 1...Rxd7+
        • 2.Sc7#
      • 1...Bxd7
        • 2.Sc7#
      • 1...Kxc4!
  • Keys
    • 1.Re4!
      • threat
        • 2.Re5#
        • 2.c4#
      • 1...Qxc7+
        • 2.Sxc7#
      • 1...Qxe6
        • 2.Qe5#
        • 2.c4#
      • 1...Rxc2
        • 2.Rd4#
        • 2.Re5#
      • 1...Sxe6
        • 2.Rxh5#
        • 2.c4#
      • 1...Qb5
        • 2.Re5#
        • 2.Qe5#
      • 1...Qc6
        • 2.Qe5#
      • 1...Qd6
        • 2.Qc4#
        • 2.c4#
      • 1...Rd4
        • 2.Rxd4#
        • 2.Re5#
      • 1...Sd3
        • 2.Rd4#
        • 2.c4#
      • 1...b5
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • Q(i);CHECK,XQ(I)::B(J)+S(F),DCHECK,XQ(i)
    • R(c);N_GUARD,XP(A)::R1(D)
    • R(c);N_GUARD::R1(D),XR(c)
    • S(a);S_CUTR(c)::R1(D)
    • S(j);N_GUARD,P_SPINS(j),XS(F)::R(G),XP(g)
    • P(h);N_GUARD::R1(D)
  • Tries
    • Try
      • R(G);CHECK,XP(g)
      • Vars
        • S(j);N_GUARD,P_SPINS(j)::R(G),XS(j)
      • Refutation
        • S(j);XR(G)
    • Try
      • Q(I);CHECK,N_SPINQ(I),XQ(i)
      • Vars
        • R(k);CHECK,XQ(I)::B(J)+S(F),DCHECK
        • B(l);XQ(I)::B(J)+S(F),DCHECK
      • Refutation
        • K(f);S_FLIGHT,XR(D)
  • Actual
    • R(D);
    • Threat
      • DUALS(2)
    • Vars
      • Q(i);CHECK,XQ(I)::B(J)+S(F),DCHECK,XQ(i)
      • Q(i);N_PINQ(I)::QAR1(I)
      • P(h);::R1(D)
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